Kate Somerville Retinol Vita C Power Serum Ingredients Explained

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Published on July 13, 2020

Overview

What it is

Serum with 36 ingredients that contains hyaluronic acid, peptides, retinoid, Vitamin C and Vitamin E

Cool Features

It is cruelty-free and reef safe

Suited For

It has ingredients that are good for fighting acne, anti aging, dry skin, brightening skin, oily skin, reducing pores, scar healing, dark spots and better texture

Free From

It doesn't contain any harsh alcohols, common allergens, parabens or sulfates

Fun facts

Kate Somerville is from United States. This product is used in 5 routines created by our community.

We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.

You should know

Here's our breakdown of the notable ingredients, benefits, and concerns we determined from the ingredients in this product. Click any item to learn more.

Notable Ingredients

Retinoid
Vitamin C
Vitamin E (2)
Hyaluronic Acid (2)
Peptides

Benefits

Hydrating
Good For Oily Skin
Redness Reducing
Skin Texture (3)
Reduces Large Pores
Anti-Aging (5)
Dark Spots (2)
Scar Healing (5)
Acne Fighting
Brightening (5)

Concerns

Drying
May Worsen Oily Skin (3)
Acne Trigger
Irritating (3)
Rosacea
Eczema (2)

Ingredient Info

Click any item below to learn more and view relevant ingredients.
alcohol-free
silicon-free
fragrance-free
sulfate-free
paraben-free
oil-free
fungal-acne safe
reef-safe
eu-allergen-free
vegan
cruelty-free

Ingredients Overview

Here's our quick-to-read summary of the ingredients in this product. Keep scrolling if you'd like to learn more about what each ingredient does!
Ingredient
Features
1
Skin Conditioning, Solvent
2
Emollient, Skin Conditioning, Skin Protecting
1 / 0
Silicon Icon
3
Solvent
4
5
Emulsifying
0 / 0
Not safe for Fungal Acne Icon
6
Emollient, Skin Conditioning
0-1 / 0
May worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon
7
Skin Conditioning
Oil Icon
8
Emollient, Emulsifying
1 / 0
Not safe for Fungal Acne Icon
9
Emollient, Skin Conditioning, Solvent
10
0 / 0
Not safe for Fungal Acne Icon
11
Masking, Perfuming
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon
12
Skin Conditioning
Retinoid IconCan worsen Dry Skin IconGood for Oily Skin IconMay cause irritation IconGood for Skin Texture IconGood for Minimizing Pores IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps fight Acne IconMay worsen Eczema IconHelps brighten skin Icon
13
Antioxidant, Buffering, Masking, Skin Conditioning
Vitamin C IconAntioxidant IconHelps reduce Skin Redness IconGood for Skin Texture IconHelps with Anti-Aging IconGood for Dark Spots IconGood for Scar Healing IconHelps brighten skin Icon
14
Antioxidant, Skin Conditioning
0 / 0
Vitamin E IconAntioxidant IconHelps brighten skin Icon
15
Humectant, Moisturising, Skin Conditioning
Hyaluronic Acid IconMay cause irritation IconGood for Skin Texture IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin Icon
16
Skin Protecting
17
Humectant, Skin Conditioning
0 / 0
Hyaluronic Acid Icon
18
Antioxidant, Masking, Skin Conditioning
0-3 / 0-3
Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconMay cause irritation IconHelps with Anti-Aging IconGood for Scar Healing IconHelps brighten skin Icon
19
Bleaching, Skin Conditioning
Peptide Icon
20
Skin Conditioning
21
22
Emulsifying
23
Skin Conditioning
Helps with Anti-Aging IconGood for Scar Healing Icon
24
Emulsion Stabilising
25
Skin Conditioning, Solvent
26
Humectant, Masking, Skin Conditioning, Solvent
1 / 0
27
Emulsion Stabilising
28
Masking, Skin Conditioning
29
30
Emulsifying
1-2 / 0
Not safe for Fungal Acne Icon
31
Cleansing, Emulsifying, Emulsion Stabilising, Masking
2-3 / 0
May worsen Oily Skin IconNot safe for Fungal Acne Icon
32
Emulsifying
0 / 0
May worsen Oily Skin IconNot safe for Fungal Acne Icon
33
Emollient, Moisturising
34
35
Antioxidant, Masking
Antioxidant Icon
36

Ingredients Explained

This product contains 36 ingredients. Click on any ingredient to learn more about it
1
What it does: Skin Conditioning, Solvent
Community Rating: Loved

Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.

So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.

You'll also recognize water as that liquid we all need to stay alive. Talk about multi-purpose! If you see this, drink a glass of water. Stay hydrated!

Learn more about Water
2
What it does: Emollient, Skin Conditioning, Skin Protecting
Community Rating: Very Disliked

Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.

Dimethicone has been found increase absorption in skin, boosting the benefits of other ingredients. While there is concern for the safety of dimethicone, the levels used in skincare are safe for use.

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What it does: Solvent
Community Rating: Liked

Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.

Propanediol is not likely to cause sensitivity and considered safe to use.

It is derived from corn or petroleum with a clear color and no scent.

Learn more about Propanediol
4
What it does:
Community Rating: Disliked

We don't have a description for Polysilicone-11.

5
What it does: Emulsifying
Community Rating: Very Disliked

Polysorbate 20 is made by combining ethoxylation of sorbitan, ethylene oxide, and lauric acid. It is a mild cleansing agent, surfactant, and emulsifier.

As a surfactant, it helps collect dirt and oils for washing. Emulsifiers prevent oils and water from separating.

Polysorbate 20 also adds scent to a product. Since it is made using sorbitol, it has a sweet scent. Sorbitol can also be found in fruits such as apples and peaches.

The lauric acid used to create Polysorbate 20 is often derived from coconuts.

Polysorbate 20 may not be fungal acne safe.

Learn more about Polysorbate 20
6
What it does: Emollient, Skin Conditioning

Isocetyl Stearate is an ester of isocetyl alcohol and stearic acid.

Stearate esters are low in viscosity and are oily by nature. Once applied, these stearate esters create a film on your skin. As an emollient, Isocetyl Stearate helps soften and smooth your skin.

One study found Isocetyl Stearate is non-irritating to human skin. However, another study found Isocetyl Stearate to be pore-clogging or comedogenic.

Learn more about Isocetyl Stearate
7
What it does: Skin Conditioning

Volcanic Soil is an oil.

8
What it does: Emollient, Emulsifying
Community Rating: Disliked

Glyceryl Stearate is a mix of glycerin and stearic acid.

Glyceryl Stearate is used to stabilize the mixing of water and oil ingredients. By preventing these ingredients from separating, it can help elongate shelf life. It can also help thicken the product's texture.

As an emollient, it helps soften skin and supports barrier-replenishing ingredients.

In cosmetics, Glyceryl Stearate is often made from vegetable oils or synthetically produced. The human body also creates Glyceryl Stearate naturally.

Learn more about Glyceryl Stearate
9
What it does: Emollient, Skin Conditioning, Solvent
Community Rating: Mixed

Isohexadecane is added to enhance texture, emulsify, and to help cleanse. It is an isoparrafin. It is a component of petrolatum.

Due to its large size, Isohexadecane is not absorbed by the skin. Instead, it sits on top and acts as an emollient. Emollients help keep your skin soft and smooth by trapping moisture within.

Isohexadecane is often used in products designed to help oily skin. It is lightweight and non-greasy while helping to moisturize. When mixed with silicones, it gives a product a silky feel.

Learn more about Isohexadecane
10
What it does:
Community Rating: Very Disliked

Peg-100 Stearate is an emollient and emulsifier. PEGS are a hydrophilic polyether compound . There are 100 ethylene oxide monomers in Peg-100 Stearate. Peg-100 Stearate is polyethylene glycol ester of stearic acid.

Peg-100 Stearate helps keep skin soft by trapping moisture in. It helps prevent oil and water from separating in a product. By binding oil and water, it helps remove dirt and oil to be rinsed away.

11
What it does: Masking, Perfuming
Community Rating: Very Disliked

Parfum is a catch-all term for an ingredient or more that is used to give aroma to products. Parfum, or fragrance, can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "Parfum" in the ingredients list is a different mixture.

In the US, the alternative name for parfum is 'fragrance'. The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.

For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance. One example is Calendula flower extract. Essential oil ingredients still impart a scent or 'fragrance'.

Depending on the blend, it can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.

Products use parfum often to give products a scent or cover up smells of different ingredients.

The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.

Learn more about Parfum
12
What it does: Skin Conditioning
Community Rating: Loved

Retinol is a form of Vitamin A and proven to help with anti-aging.

It promotes collagen production, increases new cell turnoever, and protects your skin as an antioxidant.

Retinol boosts collagen production and increases cell turnover. This makes retinol effective in removing wrinkles, fading dark spots, and reducing the appearance of pores.

Retinol is less effective when exposed to sun. Be sure to look for appropriate packaging to keep your retinol potent.

Using retinol and retinoids will increase sun-sensitivity in the first few weeks of use. Though studies show retinoids increase your skin's natural SPF with continuous use, it is best to always wear sunscreen and sun-protection.

We recommend speaking with a medical professional about using this ingredient during pregnancy.

Retinol may cause irritation in some people, so be sure to patch test. Experts recommend 'ramping up' retinol use: start using this ingredient once a week and work up to using it daily.

Read about Tretinoin

Learn more about Retinol
13
What it does: Antioxidant, Buffering, Masking, Skin Conditioning
Community Rating: Loved

Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.

Not only is vitamin C great for your overall health and immune system, it also has plenty of benefits on your skin.

Vitamin C is best used for brightening skin. It improves dark spots, acne scars, and hyperpigmentation. This is because it blocks the process of skin darkening when exposed to UV.

Remember: Vitamin C should not replace sunscreen!

Your skin uses vitamin C to build collagen. Collagen is one key component in having a strong skin barrier and plump skin. Vitamin C also plays a role in regulating collagen, thus making it effective in improving wrinkles and fine lines.

Ascorbic acid shows potent antioxidant activity. As an antioxidant, it helps fight free-radicals. Free-radicals are molecules that may damage your skin cells. These antioxidants also protect skin against UV damage.

The best formulations include Vitamin E and/or ferulic acid. These two ingredients help stabilize and provide a boost in the benefits of ascorbic acid. This is because ascorbic acid becomes unstable when exposed to UV and air. In fact, you can tell your ascorbic acid has oxidized when it turns an orange-yellow color.

Ascorbic acid is generally compatible with other ingredients. However, using ascorbic acid with other active ingredients might cause irritation. Two ingredients: copper ions and benzoyl peroxide, will inactivate ascorbic acid completely.

Read more about other types of Vitamin C:

Foods rich with vitamin C include oranges, strawberries, broccoli, bell peppers, and more. When consuming Vitamin C, your skin receives a portion of the nutrients.

Learn more about Ascorbic Acid
14
What it does: Antioxidant, Skin Conditioning
Community Rating: Liked

Tocopheryl Acetate is AKA Vitamin E. It is an antioxidant and protects your skin from free radicals. Free radicals damage the skin by breaking down collagen.

One study found using Tocopheryl Acetate with Vitamin C decreased the number of sunburned cells.

Tocopheryl Acetate is commonly found in both skincare and dietary supplements.

Learn more about Tocopheryl Acetate
15
What it does: Humectant, Moisturising, Skin Conditioning
Community Rating: Loved

Hyaluronic acid is naturally found in healthy skin. It is a humectant, meaning it draws moisture to your skin.

Hyaluronic Acid has the capacity to bind to large amounts of water. This ingredient helps hydrate, soothe, and protect the skin.

Fun fact: It is already naturally found in our bodies, such as the fluids of our eyes and our joints.

Studies find this ingredient to have anti-inflammatory and anti-microbial properties. This can help speed up wound-healing,

These are some other common types of Hyaluronic Acid:

Learn more about Hyaluronic Acid
16
What it does: Skin Protecting

We don't have a description for Physalis Angulata Extract.

17
What it does: Humectant, Skin Conditioning
Community Rating: Loved

Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.

Like hyaluronic acid, it is great at holding water and acts as a humectant. This makes it a great skin hydrating ingredient.

Sodium Hyaluronate is naturally occurring in our bodies and is mostly found in eye fluid and joints.

These are some other common types of Hyaluronic Acid:

Learn more about Sodium Hyaluronate
18
What it does: Antioxidant, Masking, Skin Conditioning
Community Rating: Liked

Tocopherol (also known as Vitamin E) is a common antioxidant used to help protect the skin from free-radicals and strengthen the skin barrier. It's also fat soluble - this means our skin is great at absorbing it.

Vitamin E also helps keep your natural skin lipids healthy. Your lipid skin barrier naturally consists of lipids, ceramides, and fatty acids. Vitamin E offers extra protection for your skin’s lipid barrier, keeping your skin healthy and nourished.

Another benefit is a bit of UV protection. Vitamin E helps reduce the damage caused by UVB rays. (It should not replace your sunscreen). Combining it with Vitamin C can decrease sunburned cells and hyperpigmentation after UV exposure.

You might have noticed Vitamin E + C often paired together. This is because it is great at stabilizing Vitamin C. Using the two together helps increase the effectiveness of both ingredients.

There are often claims that Vitamin E can reduce/prevent scarring, but these claims haven't been confirmed by scientific research.

Learn more about Tocopherol
19
What it does: Bleaching, Skin Conditioning
Community Rating: Liked

Hexapeptide-2 is a peptide.

20
What it does: Skin Conditioning
Community Rating: Mixed

Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.

You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.

21
What it does:

We don't have a description for Amylopectin.

22

This helper ingredient is a surfactant and emulsifier. It is created from coconut alcohol.

Surfactants help reduce surface tension while emulsifiers prevent ingredients from separating.

23
What it does: Skin Conditioning
Community Rating: Loved

Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.

Adenosine has many benefits when used. These benefits include hydrating the skin, smoothing skin, and reducing wrinkles. Once applied, adenosine increases collagen production. It also helps with improving firmness and tissue repair.

Studies have found adenosine may also help with wound healing.

In skincare products, Adenosine is usually derived from yeast.

Learn more about Adenosine
24
What it does: Emulsion Stabilising
Community Rating: Mixed

This is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel.

It is also an emulsifer, meaning it prevents ingredients such as oil and water from separating. It also helps evenly disperse other ingredients.

25
What it does: Skin Conditioning, Solvent
Community Rating: Mixed

1,2-Hexanediol is a multi-tasker ingredient. It acts as a preservative to increase shelf-life and can aid other preservatives in preventing microbe growth. 1,2-Hexanediol also helps the skin retain moisture as a humectant.

In products that are water-based, this ingredient can help stabilize perfumes and fragrances. It can also help make the texture of products softer and more smooth.

26
What it does: Humectant, Masking, Skin Conditioning, Solvent
Community Rating: Mixed

Butylene Glycol (or BG) is used within cosmetic products for a few different reasons:

  • It is a solvent, meaning that it helps to dissolve other ingredients. This also enhances the absorption of the product into one's skin.
  • It is a humectant, which means that it helps attract moisture into the skin.
  • It helps improve product application.

Overall, Butylene Glycol is a safe and well-rounded ingredient. It is unlikely to irritate skin, and works well with pretty much all other ingredients.

27
What it does: Emulsion Stabilising
Community Rating: Liked

Ammonium Polyacryloyldimethyl Taurate is a polymer made from ammonium salts. It helps add stability and texture to a product.

Ammonium Polyacryloyldimethyl Taurate is stable over a wide pH range. Due to its ability to absorb water, it can help thicken the texture of a product.

As an emulsion stabilizer, this ingredient is able to stabilize and mix the other ingredients. This creates a consistent texture.

Learn more about Ammonium Polyacryloyldimethyl Taurate
28
What it does: Masking, Skin Conditioning
Community Rating: Mixed

Caprylic/Capric Triglyceride is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.

Within a product, Caprylic Triglyceride can thicken the product and make spreadability easier by dissolving clumping compounds. An added benefit of Caprylic Triglyceride is its antioxidant properties.

Caprylic Triglyceride is made by combining glycerin with coconut oil, forming a clear liquid. Caprylic Triglyceride has not been found to be toxic for human use in concentrations under 50%.

While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this.

Learn more about Caprylic/Capric Triglyceride
29
What it does:
Community Rating: Very Disliked

Polyisobutene is a synthetic polymer made from isobutene.

It is a film-forming agent and helps bind ingredients together.

Polyisobutene is not absorbed by the skin.

Learn more about Polyisobutene
30
What it does: Emulsifying
Community Rating: Very Disliked

Sorbitan Isostearate is an emulsifer and cleaning agent. It is created from isostearic acid and sorbitol.

As an emulsifier, Sorbitan Isostearate prevents oils and water from separating.

Due to its isostearic acid base, it may not be safe for Malassezia or fungal acne.

Learn more about Sorbitan Isostearate
31
What it does: Cleansing, Emulsifying, Emulsion Stabilising, Masking
Community Rating: Very Disliked

Stearic Acid is a fatty acid. It is an emollient, emulsifier, and texture enhancer.

As an emollient, stearic acid helps soften skin. It aids the skin's protective barrier by preventing water loss. It also provides a gentle cleansing effect without stripping away natural oils.

Stearic acid may also be used to enhance the texture of products. It can add volume and stabilize ingredients such as water and oil. This can help water and oil ingredients from separating.

Sources of stearic acid include animal or vegetable fats/oils such as coconut or shea. It can be naturally found in butter, cocoa butter, shea butter, vegetable fats, and animal tallow.

This ingredient may not be Malassezia folliculitis, or fungal-acne safe.

Learn more about Stearic Acid
32
What it does: Emulsifying
Community Rating: Very Disliked

Polysorbate 80 is a surfactant and emulsifier. It is used to keep ingredients together, and prevent oils and waters from separating.

It is made from polyethoxylated sorbitan and oleic acid. This ingredient can be found in cosmetics, foods, and medicine. It is water-soluble.

Polysorbate 80 may not be fungal acne safe.

Learn more about Polysorbate 80
33
What it does: Emollient, Moisturising
Community Rating: Disliked

Dimethiconol is a silicone that resembles the popular dimethicone. Like other silicones, it is an emollient. Emollients create a thin film on skin to prevent moisture from escaping.

This ingredient helps to create a silky texture and improve spreadability. Due to its high molecular weight and thickness, it is often combined with cyclopentasiloxane.

34

Caprylhydroxamic Acid is a chelating agent.

Chelating agents help prevent metal ions from binding to other ingredients. This helps prevent unwanted reactions and effects from using the product.

Caprylhydroxamic Acid is often used with natural antimicrobial products as an alternative to preservatives.

Learn more about Caprylhydroxamic Acid
35
What it does: Antioxidant, Masking
Community Rating: Liked

This BHA stands for butylated hydroxyanisole. If you are looking for the beta-hydroxy acid, aka as Salicylic Acid, click here.

In cosmetics, butylated hydroxyanisole is used as a perservative. It also has antioxidant properties. The concentrations usually used in skincare are low and do not penetrate through skin.

However, it is considered a carcinogen when ingested.

Butylated Hydroxyanisole is a synthetic and waxy petrochemical. It is used as a preservative in foods and cosmetics.

Learn more about BHA
36
What it does:
Community Rating: Disliked

Disodium EDTA plays a role in making products more stable by aiding other preservatives.

It is a chelating agent, meaning it neutralizes metal ions that may be found in a product.

Disodium EDTA is a salt of edetic acid and is found to be safe in cosmetic ingredients.

Learn more about Disodium EDTA
Embed Ingredients

Here's what our community thinks of the 36 ingredients in this product ✨

33% are loved or liked
17% have mixed ratings
33% are disliked or very disliked
17% have no rating yet

When to use

Here's some more info on how this product is used by our community.

When to use

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