Vitamin C Serums  for Ageless Skin

What do Gisele Bundchen, Adriana Lima, and Halle Berry all have in common? They all use Vitamin C serums as a part of their skin care routines and credit the serum for their seemingly ageless skin. They aren’t wrong, either. A potent and expertly formulated Vitamin C serum has the potential to transform your skin rapidly. Unlike many skin care ingredient trends, the benefits of Vitamin C serums are proven and well-documented. Vitamin C is naturally found in our skin and it works in three major ways: to protect the skin from UV sun damage, to brighten the skin and reduce pigmentation, and to increase collagen production (thus, reducing wrinkles). There are many additional benefits of topical Vitamin C usage (such as inflammation reduction, increased skin hydration, and increased healing time), but these pale in comparison to the three major benefits previously mentioned. All things considered, just about every skin type can benefit from the addition of Vitamin C in their skin care routines.

The effectiveness of a Vitamin C serum really comes down to choosing the right product. Before purchasing a Vitamin C serum, there are three important things to consider: the type of Vitamin C, the additional ingredients in the formula, and the concentration of Vitamin C.

Types of Vitamin C

While Vitamin C is a wonder ingredient, there are some downsides. Pure natural Vitamin C (known as ascorbic acid) is highly unstable when mixed into a water-based formula. Since just about every product contains water, this creates a problem. Once ascorbic acid degrades, it is no longer effective and can even cause skin irritation. As a result, many skin care manufacturers have turned to synthetic forms of Vitamin C. Typically, the word “synthetic” scares a lot of skin care advocates (especially those use natural + organic products), but in this case synthetic isn’t all that bad. Synthetic Vitamin C types are more stable than ascorbic acid, can be absorbed by the skin, and have not been shown in laboratory tests to cause toxicity or damage to the skin. Common and effective types of synthetic Vitamin C include L-ascorbic acid (the best synthetic form), magnesium ascorbyl phosphate, ascorbyl palmitate, Vitamin C esters, sodium ascorbyl palmitate, and sodium ascorbyl phosphate. Occasionally, a product may also contain ingredients like vitamin E and ferulic acid to help stabilize Vitamin C.

If you want to avoid synthetic forms of Vitamin C, you have another option: whole Vitamin C. Whole Vitamin C contains ascorbic acid plus all of the other natural components of Vitamin C including natural enzymes and bioflavonoids. You can get whole Vitamin C naturally from sources such as rosehips, sea buckthorn berries, amla berries, citrus fruits, marula oil, pomegranate seeds, and similar fruit sources. A serum which contains high quantities of these natural Vitamin C sources doesn’t need fillers, stabilizers, or other ingredients in order to be effective. Some people even argue that whole Vitamin C absorbs better than synthetic versions, has a lower risk of irritation, and offers more nutrients.

Vitamin C Concentration: Does it Matter?

Often, Vitamin C serums will boast about the concentration of Vitamin C contained in the product (anywhere from 10-20%). Studies have shown that the proven effective range of Vitamin C is between .3% and 10%. Higher concentrations of Vitamin C can cause irritation and may not be necessary to achieve results. Additionally, some forms of Vitamin C (like sodium ascorbyl phosphate and whole Vitamin C) are easily absorbed by the skin and can deliver the same results as a 20% solution but at a much lower concentration. On the other hand, some forms (like ascorbic acid polypeptide and ascorbic acid) can be irritating at high concentrations. All in all, concentration isn’t all that it is hyped up to be. Instead, look for a well formulated product with a lower concentration (2%-10%) to start to avoid irritating your skin.

Additional Ingredients: What Else Is In Your Serum?

While the form of Vitamin C is important, you should pay very close attention to the other ingredients used in the formula. It is vitally important to evaluate the entire product before purchasing. Why? Because you could be paying for junk. For example, a product may contain a great form of Vitamin C at a high concentration, but it may also contain cheap, potentially toxic, and irritating fillers like propylene glycol + butylene glycol (classified as an irritant (source)), alcohols, phenoxyethanol (a preservative that can cause severe allergic reactions and eczema(source)), and host of other not-so-good ingredients. Not only are these ingredients irritating and cheap, some of them can also be damaging to your skin and health. Ingredients like parabens, phthalates, and petroleum by-products like propylene glycol have been shown to cause hormonal imbalances and even cancer. This isn’t about fear tactics—this is scientifically proven and many of these chemicals are banned from cosmetic use in other countries. Some of the MOST popular Vitamin C serums on the market today contain propylene glycol and fillers as their first ingredients. Do you really want to pay for ingredients that do nothing for you skin and may even be harmful?

For more information on how to choose the best Vitamin C serums, check out our Simple Guide to Vitamin C Serums at the bottom of this page. We include info on how Vitamin C serums work, what ingredients to look for, and which to avoid. We even break down which Vitamin C types and serum ingredients are best for each skin type.

What’s on This List?

We researched hundreds of Vitamin C serums to bring you the 13 most effective products available. Not only did we look for products that actually work, but we also excluded any product that used cheap ingredients that are known to be toxic and irritating like Parabens, Phthalates, Sulfates, PEG compounds, Petrochemicals & Mineral Oils, Ethoxylated Ingredients, as well as Synthetic Fragrances & Colors. The result? This list of Vitamin C serums is by far the best around. You can rest assured that these products are clean, non-toxic, and very effective at delivering a potent blast of Vitamin C to your skin. You can even filter the list by skin type, price, and ingredient quality.  Enjoy!


OSEA – Vitamin Sea Serum ($68)

A gentle organic + natural Vitamin C serum that combines two stable forms of Vitamin C together (magnesium ascorbyl phosphate and ascorbyl palmitate) to create a really effective solution. It’s made with lots of moisturizing ingredients like hyaluronic acid, red algae, and brown algae which make this a great serum for dry skin types. It also contains additional antioxidants like green tea and turmeric for help fight fine lines and wrinkles. The consistency is luxurious and it absorbs quickly into the skin without stickiness. This serum contains no harmful chemicals, irritants, or fragrances.


  • Gigartina Skottsbergii Extract a red algae that deeply hydrates skin and promotes the appearance of youthful volume and firmness. Helps protect skin from external aggressors such as wind, dry climates and air pollution. Rich in polysaccharides, vitamins and minerals.
  • Undaria Pinnatifida Extract a brown marine algae rich in iodine, iron, potassium, calcium and vitamins B1, B2, B3, B6 and B12. Contains Fucoidan, a particularly hydrating compound that promotes a youthful, plump appearance. Reduces appearance of fine lines and wrinkles while also minimizing the appearance of surface redness.
  • Macrocystis Pyrifera Extract a brown algae abundant in vitamins, minerals, antioxidants and essential fatty acids. Helps minimize the appearance of surface impurities and irritation and visibly diminishes uneven skin texture.
  • Sodium Hyaluronate a vegan fermented form of Hyaluronic Acid that helps maintain skin’s natural moisture barrier.
  • Turmeric brightens the appearance of skin for a radiant complexion. Rich in antioxidants.



Mad Hippie – Vitamin C Serum ($27)

Mad Hippie Vitamin C Serum with Konjac Root, Hyaluronic Acid, and Ferulic Acid

A really nice, natural, and gentle Vitamin C serum that is packed with Vitamin C (in the form of sodium ascorbyl phosphate), as well as ingredients which synergize and boost the properties of Vitamin C like vitamin E, ferulic acid, and hyaluronic acid. It’s non-sticky, absorbs fast, and leaves skin feeling really moisturized. Additional ingredients include clary sage (balances oil production), chamomile (soothes skin), grapefruit (mild exfoliant), and konjac powder (vitamin rich). A great solution for acne-prone skin, dry skin, discoloration, and those with sensitive skin.


Vitamin C (Sodium Ascorbyl Phosphate) – A vital element in the production of collagen, vitamin C can reduce the appearance of wrinkles & discoloration, while helping offer antioxidant protection from photoaging – a leading cause of skin aging.

Vitamin E – Protective antioxidant that has been shown to reduce the appearance of wrinkles & discoloration.

Ferulic Acid – A natural antioxidant found in the cell walls of plants. When combined with vitamins C & E, Ferulic Acid has been shown to have a compounding antioxidant protective effect.

Hyaluronic Acid – Works to plump up the skin and reduce the appearance of wrinkles.



One Love Organics – Organic Moisturizing Vitamin C Facial Serum ($75)


A great Vitamin C serum that is crafted from 100% natural and 88% organic ingredients. It uses ascorbyl palmitate as Vitamin C and combines that with skin-boosting botanicals like green tea (antioxidant), rosehip oil (brightening), acerola fruit (more Vitamin C), seabuckthorn (contains fatty acids for hydration), and shea oil (moisture) just to name a few. It also contains a bit of vitamin E which synergistically boosts the potency of Vitamin C. It’s a lovely non-sticky serum that absorbs fast. A little goes a really long way, so you’ll be using this bottle for months to come.


simmondsia chinensis (jojoba) seed oil*, butyrospermum parkii (shea) oil*, camellia sinensis (green tea) seed oil*, caprylic/capric triglyceride, limnanthes alba (meadowfoam) seed oil, jojoba esters, adansonia digitata (baobab) oil*, ascorbyl palmitate, rosa canina (rosehip) oil*, malpighia glabra (acerola) fruit extract*, hippophae rhamnoides (seabuckthorn) berries extract*, haematococcus pluvialis extract, humulus lupulus (hops) strobile, tocopherol, rose extract, rosmarinus officinalis (rosemary) leaf extract*, helianthus annuus (sunflower) seed oil*



Ursa Major – Brighten Up Vitamin C Serum ($54)

Ursa Major Natural Vitamin C Face Serum | Brightening, Hydrating, Smoothing | Vegan, Non-Toxic, Cruelty-Free | 1 ounce

If you’re using a Vitamin C serum in order to treat dark spots, hyperpigmentation, or a dull complexion, then this may be the serum for you. This formula uses a stable form of Vitamin C that can easily penetrate the skin (ascorbic acid polypeptide). On top of that, ingredients like rosehip (brightening), aloe (anti-inflammatory), rose oil (redness reduction), and aspen bark (mild exfoliant) all work together to create an even toned complexion. The serum is super light-weight and absorbs effortlessly into the skin. Best of all, it contains 100% natural and 84% organic ingredients.


Ascorbic Acid Polypeptide A stable form of Vitamin C that helps brighten and improve the skin’s appearance, tone and firmness
Rose Hip – High in Vitamin C; hydrates skin and minimizes the appearance of dark spots, scars and fine lines
Aloe – Soothes and hydrates
Edelweiss – A stem cell complex with robust antioxidant properties to help combat the signs of aging
Aspen Bark Natural source of salicylic acid; gently exfoliates and soothes skin
Rose Reduces the appearance of redness


True Botanicals – Vitamin C Booster Powder ($90)


This is a really unique Vitamin C formula! While L-ascorbic acid is a great form of Vitamin C, it has some downsides including instability when combined with water and it can cause mild irritation at high concentrations. True Botanicals works around these downsides by creating a powder formula (no water) made with just L-ascorbic acid powder, ferulic acid powder, and tapioca starch. All you have to do is mix a little of this powder into water or your favorite serum and apply the fresh Vitamin C to your face. It is very effective at boosting collagen, brightening skin, and treating wrinkles.


  • Tapioca starch*

    Derived from the tubular roots of the Manihot Esculenta (Cassava) Plant, Tapioca Flour works as an exfoliant, hydrator, and healer to make your skin tone even, nourished and scar-free.

  • L-ascorbic acid (vitamin c)

    Your skin tissues adore vitamin C. And collagen production thrives on it. While you can include this crucial antioxidant in your diet, the most effect way to directly target skin tissue is to apply fresh vitamins C topically.


  • Ferulic acid (antioxidant found in plant cell walls)

    This potent, ubiquitous plant antioxidant becomes more stable and effective when combined with vitamin C. Studies show that when used in concert with vitamin C, ferulic acid doubles photo protection, from 4 fold to 8 fold, as measured by both erythema (redness) and sunburn cell formation.


RoseMira – See Me C Repair Serum ($52)

See Me C Repair Serum

This 100% organic Vitamin C serum works a bit differently than other serums. Instead of isolating Vitamin C (which can be unstable and requires additives and stabilizers), this serum contains natural fruits and oils that are packed with Vitamin C. Thus, it is a very gentle formula that is ideal for those with sensitive skin. It is made with ingredients like marula oil, pomegranate seed oil, Bulgarian rose oil, and lemon verbena which not only contain high amounts of whole Vitamin C, but they also contain potent antioxidants, fatty acids, and other natural compounds to nourish the skin.


South African Marula Oil: Antioxidant, Hydrating, Softening
Indian Pomegranate Seed Oil: Antioxidant, Nourishing, Anti-Aging
Somalian Frankincense Essential Oil: Rejuvenating, Anti-Aging
Bulgarian Rose Essential Oil: Moisturizing, Regenerating, Restoring
French Linden Blossom Absolute: Antioxidant, Regenerative

100% Pure – Vitamin C Serum ($41)

100% Pure – Vitamin C Serum

A fantastic Vitamin C serum which uses a stable form of Vitamin C (magnesium ascorbyl phosphate – MAP), contains no fillers, and does not contain any potentially irritating or toxic preservatives. Although this product doesn’t list the concentration of Vitamin C, MAP is the 2nd ingredient behind to organic aloe vera gel–which indicates that the serum contains a lot of Vitamin C. The formula is all-natural, non-sticky, absorbs very quickly, and does a fantastic job of instantly brightening the complexion. The ingredients are all-natural and gentle enough for sensitive skin types.


Alpha Lipoic Acid-Alpha Lipoic Acid lessens signs of aging.

SOD – SOD promotes strong skin cell health.
Green Apple –Green Apple evens skin tone and texture.

Vitamin E (Tocopherol)-Vitamin E restores and protects from free radical damage.

Vitamin C-Vitamin C brightens, boosts collagen and elastin production.

Eminence Organics – Rosehip Triple C+E Firming Oil ($72)

Eminence Organics – Rosehip Triple C+E Firming Oil

This natural formula uses tetrahexyldecyl ascorbate as its form of Vitamin C. This is a very stable form of Vitamin C which behaves similarly to L-ascorbic acid (the premium form of Vitamin C). As a fat-soluble form of Vitamin C, it is noted that it may be more easily absorbed by the skin than water-soluble forms. The wonderful thing about this formula from Eminence is that is also contains natural ingredients which are great for reducing inflammation (for rosacea) and brightening the skin (for dark spots). These ingredients include rosehip seed oil, seabuckthorn oil, rosemary leaf, and jojoba oil.


IngredientsStabilized Vitamin C (L-Ascorbic Acid), Sodium Ascorbyl Phosphate, Vitamin E, Botanical Ferulic Acid, Leafy Greens (Kale, Spinach & Broccoli Sprouts), Citrus Fruit Oils (Lemon & Grapefruit), Avocado, Hydrolyzed Botanical Hyaluronic Acid (from grass extract)

Kypris – Healing Bouquet Vitamin C Beauty Elixir ($80)

Kypris – Healing Bouquet Vitamin C Beauty Elixir

Flower power to the rescue! This serum uses highly stable Vitamin C esters along with vitamin e to support your skin’s collagen production. For formula is designed to calm irritated skin, fade blemishes, and brighten the complexion. It’s a really unique formula made from CoQ10 (antioxidant), fatty acids (helps with cell regeneration), and licorice (calms irritation). It also contains botanical form of Vitamin C from pumpkin seed, prickly pear, rosehips, and cranberry seed oil. Although this is a rich oil, a little goes a very long way (just 1 or 2 drops is enough for your whole face).


Helianthus Annuus (Sunflower Seed) Hybrid Oil, Cocos Nucifera (Coconut) Oil, Vitis Vinifera (Grape) Seed Oil. Adansonia Digitata (Babobab) Seed Oil, Aleurites Moluccana (Kukui) Seed Oil, Calophyllum Inophyllum (Tamanu) Seed Oil, Cucurbita Pepo (Pumpkin) Seed Oil, Ubiquinone (CoQ10), Lavandula angustifolia (Lavender) Oil, Opuntla Ficus Indlca (Prickly Pear) Seed Oil, Rosa Canina (Rosehip) Seed Extract, Vaccinium Macrocarpon (Cranberry) Seed Oil, Tocopherol, Hlppophae Rhamnoldes (Seabuckthorn) Fruit Extract, Rubus Occldentalis (Black Raspberry) Seed Oll, , Punica Granatum (Pomegranate) Seed Oil, Tetrahexyldecyl Ascorbate (Vitamin C Ester), Jasminum Grandiflorum (Jasmine) Extract, Garthamus Tinctorius (Safflower) Seed Oil, Stearyl Glycyrrhetinate, Pogostemon Cablin (Patchouli) Leaf Oil, Rosmarinus Officinalis (Rosemary) Leaf Extract, Ascorbyl Palmitate, Helianthus Annuus (Sunflower) Seed Oil, Pelargonium Graveolens (Rose Geranium) Flower Extract, Aqua/Water/Eau, Tocopheryl Acetate, Linalool, Benzyl Benzoate, Citronellol, Geraniol, Eugenol, Limonene,

Marie Veronique – Vitamin C+E+Ferulic Serum ($90)

Marie Veronique – Vitamin C+E+Ferulic Serum

An all-natural Vitamin C serum that uses L-ascorbic acid. Typically, L-ascorbic acid can be quite unstable, but this serum contains ingredients like ferulic acid and vitamin E which help to stabilize it. Additionally, these two compounds also boost L-ascorbic acid’s antioxidant and sun protection powers. Together they create a potent anti-aging Vitamin C serum. The product has a nice consistency and absorbs easily without leaving a sticky residue. It also contains lots of great beneficial ingredients like green tea, neroli, lavender, astaxanthin (a very powerful antioxidant), and probiotics.


VITAMIN C, VITAMIN E, FERULIC ACID COMBINATION  Ferulic acid is a potent plant antioxidant. Studies show that combining it with l-ascorbic acid and Vitamin E, also powerful antioxidants, not only increases overall antioxidant protection, but doubles the sun protection offered by your sunscreen.

CO-ENZYME Q  A powerful anti-oxidant that boosts skin repair and regeneration.

ASTAXANTHIN  A very powerful antioxidant from the carotenoid family that protects against long-wave radiation damage.


Camellia Sinensis (Green Tea) Leaf Infusion, Citrus Aurantium (Neroli) Hydrosol, Lavandula Angustifolia (Lavender) Hydrosol, stabilized l-ascorbic acid (Vitamin C), Olea Europaea (Olive) Oil, leuconostoc/radish root ferment filtrate, Populus Tremuloides (Aspen) Bark, Tocotrienols & Tocopherol (Vitamin E from non-GMO sources), ferulic acid, xanthan gum, sodium hyaluronate, Ceramide NP (stearoyl phytosphingosine), milk lipids (phosphatidylethanolamine, phosphatidylcholine), acetyl glucosamine, phospholipids (soy lecithin), sodium salicylate, potassium polysorbate, Hydroxydecyl Ubiquinone (Coenzyme Q10), lycopene, astaxanthin, Psiadia Altissima (Iary) Oil*, Lavandula Angustifolia (Lavender) Oil*, Terminalia Ferdinandiana (Kakadu Plum) Fruit Extract, Helichrysum Italicum (Helichrysum) Flower Oil*, Daucus Carota Sativa (Carrot) Root Extract


Orgaid – Organic Vitamin C Sheet Masks ($22)

Orgaid – Organic Vitamin C Sheet Masks

Made with 70% organic ingredient, this organic Vitamin C sheet mask is a super fun and relaxing way to treat your skin. The mask feels really good on the skin and is easy to apply. It’s a totally clean formula made with natural ingredients like lemon, Vitamin C (sodium ascorbyl phosphate), hyaluronic acid, pomegranate extract, rosehip extract, and lavender extract. After cleansing, simply apply the mask for 20-30 minutes, remove the mask, and then massage the remaining serum into your skin (no rinsing). After 30 minutes, you should notice brighter, tighter, and more moisturized skin.


Water, Organic Lemon distillate, Kosher vegetable Glycerin, Lactobacillus ferment, Sodium ascorbyl phosphate (Vitamic C), Hyaluronic acid, Maltodextrin, Arginine, Carbomer, Organic Orange peel extract, Organic Pomegranate extract, Organic Rosehip extract, Organic Lavender extract, Organic Thyme extract


TruSkin Naturals – 20% Vitamin C Serum w/ Hyaluronic Acid ($20)

We’re typically cautious about products with thousands of reviews on Amazon, but we checked this product out via Fakespot (a tool that identifies fake reviews) and it passed with flying colors. This 20% Vitamin C serum combines a stable and gentle form of Vitamin C known as sodium ascorbyl phosphate along with botanical hyaluronic acid to form a potent anti-aging solution. It’s great for treating acne, age-spots, discoloration, and wrinkles. One downside? The product contains a small amount of phenoxyethanol as a preservative which has been linked to allergic reactions and irritation.


Organic Deionized Herbal Infusion, Organic Aloe Barbadensis Leaf (Aloe), Sodium Ascorbyl Phosphate (Vitamin C), MSM, Botanical Hyaluronic Acid (Cassia Angustifolia Seed Polysaccharide), Hamamelis Virginiana (Witch Hazel), Vitamin E (d-alpha Tocopheryl Acetate), Carbomer, (2s)-2-Amino-5-guanidinopentanoic Acid, Organic Gotu Kola, Wildcrafted Horsetail (Equisetum Arvense), Wildcrafted Dandelion, Wildcrafted Geranium, Organic Jojoba Oil (Organic Simmondsia Chinensis), Phenoxyethanol, Ethyl Hexyl Glycerin.


SanRe – C Love Vitamin C Cream ($35)

SanRe – C Love Vitamin C Cream

If you’re looking for a natural Vitamin C moisturizer, then look no further than this cream. This moisturizing Vitamin C facial cream is USDA certified organic and contains only 100% natural ingredients (no fillers, fragrances, or harsh chemicals). It uses fruit-based Vitamin C from acerola cherries (one of the richest fruit sources for Vitamin C) which makes this formula very gentle and great for sensitive skin types. Other skin nourishing ingredients include turmeric powder, calendula oil, safflower oil, chamomile, and alfalfa. It has a silky texture that absorbs quickly.


Organic Rosa Mosqueta Oil, Organic Safflower Oil, Purified Water, Organic Beeswax, Organic Matcha Green Tea, Organic Citrus Extract, Organic Chamomile Essential Oil, Organic Patchouli Essential Oil, Organic Neroli Essential Oil.


Simple Guide to the Best Vitamin C Serums

Shopping for Vitamin C serums can be, well, overwhelming. With so much information and marketing related to what works and what doesn’t, how can you be sure that you’re investing in the right product? Which form of Vitamin C is best for your skin? What’s the deal with unstable Vitamin C? That’s why we put together this Simple Guide to the Best Vitamin C Serums. Our goal was to simplify the process and explain the basics of 1) the different forms of Vitamin C and how they work 2) the best ingredients to look for in a Vitamin C serum for your skin type and 3) which Vitamin C serum ingredients you should avoid.  In addition to these sections, here are some important tips to keep in mind when shopping for a Vitamin C serum:

  • Vitamin C can become unstable when exposed to air + light. Only purchase serums that are packaged in dark, airtight, pump containers.
  • Look for formula’s that include Vitamin E, ferulic acid, and hyaluronic acid. These ingredients work synergistically with Vitamin C and help to stabilize it.
  • If you are worried about skin irritation, try a low-concentration or whole Vitamin C serum to start.

Types of Vitamin C & Their Benefits for Skin

There are many different forms of Vitamin C available. Since natural Vitamin C (ascorbic acid) is quite unstable and easily degrades (making it less effective and irritating), many new forms of Vitamin C have been synthetically created in an effect to provide greater stability. While many of them are great, they all have their benefits and downsides. For example, some forms of synthetic Vitamin C can absorb deeper into the skin than others. Additionally, some forms of Vitamin C are better at protecting against the sun’s UV rays than others. Before you purchase a Vitamin C serum, review our guide below to ensure that the type of Vitamin C you are buying is right for your skin type and desired outcome.

Whole Vitamin C

Pure, whole Vitamin C that has not been chemically altered. Derived from natural sources such as plants and fruit. Contains all naturally occurring Vitamin C compounds including phytonutrients, bioflavonoids, and natural enzymes.

Whole Vitamin C is great for all skin types—especially sensitive skin.


  • Stable
  • Non-irritating
  • Bioavailable (good penetration and absorption)
  • Clinically proven to protect from UV damage, increase collagen, and reduce skin pigmentation.


  • Not available in super high concentrations.

Ascorbic Acid/ L-Ascorbic Acid

Natural, water-soluble form of the Vitamin C molecule that has been isolated from the other compounds naturally found in whole Vitamin C. Considered the best form of topical Vitamin C if formulated correctly.

Ascorbic acid and L-ascorbic acid should be avoided by sensitive skin types at high concentrations.


  • Bioavailable (good penetration and absorption)
  • Most researched form of Vitamin C
  • Clinically proven to increase collagen, reduce pigmentation, and protect from UV damage.


  • Unstable + degrades at high pH (low pH serums can cause irritation)
  • Can cause irritation at higher concentrations

Magnesium Ascorbyl Phosphate / Sodium Ascorbyl Phosphate

Synthetic, water-soluble forms of Vitamin C that is very stable and effective.

Safe and effective for all skin types —including sensitive skin.


  • Stable
  • Non-irritating
  • Clinically proven to be bioavailable (good penetration and absorption)
  • Converts to ascorbic acid when absorbed
  • Increases collagen
  • Reduces skin pigmentation


  • No conclusive research on UV damage protection effectiveness

Ascorbyl Palmitate / Sodium Ascorbyl Palmitate

Synthetic Vitamin C. While most forms of Vitamin C are water soluble, ascorbyl palmitate is a fat/oil soluble form of Vitamin C.

Because this form of Vitamin C is usually present in an oil-based formula, it is best suited for dry skin and sensitive skin types.


  • Stable
  • Non-irritating
  • Protects from UV damage
  • Moderately effective at increasing collagen


  • May not penetrate as well as other forms of Vitamin C
  • No research indicating that it can reduce pigmentation
  • Not super effective at increasing collagen production

Tetrahexyldecyl Ascorbate

A fat-soluble, synthetic form of Vitamin C that is very similar to L-ascorbic acid. Because of it’s fat solubility, it is said to easily penetrate to the deeper layers of the skin.

Great for all skin types—especially sensitive skin.


  • Stable
  • Non-irritating
  • Bioavailable (deeper penetration and absorption)
  • Protects against UV damage
  • Increases collagen production at 2x the rate of ascorbic acid
  • Anti-inflammatory
  • Reduces pigmentation


  • No major downsides

Ascorbic Acid Polypeptide

A synthetic, water-soluble form of Vitamin C that may convert to ascorbic acid once absorbed into the skin.

Should be avoided by sensitive skin types at concentrations above 1%.


  • Stable
  • May penetrate deeper than other water-soluble forms of Vitamin C
  • Protects against UV damage
  • Increases collagen production


  • Can be irritating at concentrations above 2%

Other Great Vitamin C Serum Ingredients by Skin Type

In addition to the type of Vitamin C used in a serum, you’ll also want evaluate the entire formula to see if it includes ingredients that are great at treating your particular skin conditions. These additional ingredients work synergistically with Vitamin C to provide greater results.



  • Hyaluronic acid
  • Ferulic Acid
  • Astaxanthin
  • CoQ10
  • Pomegranate
  • Coconut, Jojoba, Sunflower Oil
  • Aspen Bark
  • Aloe Vera


  • Rosehip Seed oil
  • Aloe Vera
  • Green Tea
  • Coconut Oil
  • Chamomile
  • Rose Oil
  • Licorice


  • Willow Bark (Salicylic acid)
  • Rose Oil
  • Witch Hazel
  • Lavender
  • Turmeric
  • Tea Tree Oil
  • Sage Extract
  • Green Tea
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  • Rosehip Seed Oil
  • Tamanu Oil
  • Seabuckthorn Oil
  • Turmeric
  • Lemon & Citrus Oils
  • Almond Oil
  • Licorice

Ingredients to Avoid in Vitamin C Serums & Why

Many popular Vitamin C serums are filled with cheap fillers, irritants, and chemicals that could be harmful to your skin and health. There are dozens of potentially bad chemicals that should be avoided in skin care (think petroleum byproducts & carcinogens); however, a few naughty chemicals seem to be more common in Vitamin C serums. Does your Vitamin C serum contain any of the following not-so-great ingredients?

Propylene glycol & Butylene glycol

Propylene glycol (also known as PG) is commonly derived as a petroleum byproduct and can be found in a variety of liquid skin care products as well as antifreeze, brake fluid, and paints. It is used as a solvent, stabilizer, and humectant in many beauty products. PG enhances the penetration abilities of other chemicals allowing harmful chemicals to further into your skin and bloodstream than they could on their own. The Environmental Working Group notes that PG use has been linked to contact dermatitis and irritation in humans. While PG can prevent moisture loss by creating a seal over your skin, it can also make your skin drier by drawing moisture from the deeper layers of your skin towards to the top-most layers.


Parabens are inexpensive preservatives which have been used since the early 1950s to prevent against bacteria, mold, fungus, and even parasite growth in a wide range of cosmetic products. There are a few major concerns with parabens: (1) studies have shown that these chemicals can in-fact be absorbed through our skin and into our bloodstream where they then nestle and accumulate in our cells, (2) parabens are xenoestrogens, meaning they can mimic estrogen in the body and disrupt our natural hormonal balance, and (3) in 2004, British researchers discovered parabens within breast cancer tumors, leading to a fear that there may be a link between paraben exposure and breast cancer.


Phthalates are a group of chemical plasticizers used as lubricants in a variety of beauty products such as nail polish, detergents, toys, shampoos, creams, and moisturizers. Several studies have shown that phthalates act as endocrine disrupters and have been linked to male and female reproductive defects, asthma, ADHD, breast cancer, and even diabetes. The problem with phthalates is that they are often hidden on ingredient labels under vague terms like “fragrance.” For this reason, it is best to avoid products that use synthetic fragrances.


Phenoxyethanol is a very common ingredient used as an anti-bacterial preservative in cosmetics. It has been linked to causing severe eye and skin irritation as well as severe allergic reactions and eczema (source). Repeated long-term exposure to this chemical can cause organ damage in adults and long-term nervous system function reduction in breast-feeding infants (source).