Skin science article
Derma E Vitamin C Night Cream Versus Olay Vitamin C + Peptide 24
Derma E Vitamin C Night Cream Versus Olay Vitamin C + Peptide 24 This brightening night moisturizer is formulated around Sodium Ascorbyl Phosphate and Glycyrrhiza Glabra Root Extract to brighten dull-looking skin and fade the look of dark spots. This brighteni
Derma E Vitamin C Night Cream Versus Olay Vitamin C + Peptide 24
This brightening night moisturizer is formulated around Sodium Ascorbyl Phosphate and Glycyrrhiza Glabra Root Extract to brighten dull-looking skin and fade the look of dark spots.
This brightening moisturizer is formulated around Niacinamide and 3-O-Ethyl Ascorbic Acid to brighten dull-looking skin and soften the look of wrinkles.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Caprylic/Capric Triglyceride
Sodium Ascorbyl Phosphate
Glycerin
Sodium Hyaluronate
Cetyl Alcohol
Ethylhexyl Palmitate
Cetearyl Alcohol
Cetearyl Glucoside
Cetyl Palmitate
Sorbitan Palmitate
Sorbitan Oleate
Diheptyl Succinate
Capryloyl Glycerin/Sebacic Acid Copolymer
Pseudozyma Epicola/Nitrosomonas Europaea/Oil Ferment Filtrate
Prunus Armeniaca Kernel Oil
Helianthus Annuus Seed Oil
Prunus Amygdalus Dulcis Oil
Enterococcus Faecium/Saururus Chinensis Extract Ferment Filtrate
Aspalathus Linearis Leaf Extract
Glycyrrhiza Glabra Root Extract
Rosa Canina Fruit Oil
Camellia Sinensis Leaf Extract
Olea Europaea Fruit Oil
Retinyl Palmitate
Panthenol
Tocopheryl Acetate
Xanthan Gum
Potassium Sorbate
Phenoxyethanol
Ethylhexylglycerin
Parfum
Water, Caprylic/Capric Triglyceride, Sodium Ascorbyl Phosphate, Glycerin, Sodium Hyaluronate, Cetyl Alcohol, Ethylhexyl Palmitate, Cetearyl Alcohol, Cetearyl Glucoside, Cetyl Palmitate, Sorbitan Palmitate, Sorbitan Oleate, Diheptyl Succinate, Capryloyl Glycerin/Sebacic Acid Copolymer, Pseudozyma Epicola/Nitrosomonas Europaea/Oil Ferment Filtrate, Prunus Armeniaca Kernel Oil, Helianthus Annuus Seed Oil, Prunus Amygdalus Dulcis Oil, Enterococcus Faecium/Saururus Chinensis Extract Ferment Filtrate, Aspalathus Linearis Leaf Extract, Glycyrrhiza Glabra Root Extract, Rosa Canina Fruit Oil, Camellia Sinensis Leaf Extract, Olea Europaea Fruit Oil, Retinyl Palmitate, Panthenol, Tocopheryl Acetate, Xanthan Gum, Potassium Sorbate, Phenoxyethanol, Ethylhexylglycerin, Parfum
Isohexadecane
Niacinamide
Dimethicone
Lactic Acid
Isopropyl Isostearate
Sodium Polyacryloyldimethyl Taurate
Stearyl Alcohol
3-O-Ethyl Ascorbic Acid
Palmitoyl Pentapeptide-4
Sodium Lactate
Trehalose
Behenyl Alcohol
Stearic Acid
Palmitic Acid
Dimethiconol
PEG-100 Stearate
Sodium Benzoate
Ascorbic Acid
Avena Sativa Peptide
Water, Glycerin, Isohexadecane, Niacinamide, Dimethicone, Lactic Acid, Isopropyl Isostearate, Sodium Polyacryloyldimethyl Taurate, Stearyl Alcohol, 3-O-Ethyl Ascorbic Acid, Palmitoyl Pentapeptide-4, Panthenol, Sodium Lactate, Trehalose, Cetearyl Glucoside, Cetearyl Alcohol, Behenyl Alcohol, Cetyl Alcohol, Stearic Acid, Palmitic Acid, Dimethiconol, PEG-100 Stearate, Sodium Benzoate, Parfum, Ascorbic Acid, Avena Sativa Peptide
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Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Cetearyl alcohol is a waxy mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is an emollient and emulsifier.
Despite having "alcohol" in its name, it has nothing to do with drying solvent alcohols; the FDA also allows "alcohol-free" products to contain fatty alcohols like this ingredient.
It plays several roles in a formula:
Typical use levels for this ingredient sit around 1-10% and the Cosmetic Ingredient Review Expert Panel has affirmed safety at concentrations up to 25% in leave-on products.
Multiple assessments have found it to be non-irritating and non-sensitizing to most people.
However, there have been some cases of allergic contact dermatitis in patients with chronically compromised skin barriers.
Cetearyl alcohol has a comedogenic rating of 2 and irritancy rating of 1. Both of these numbers come from the 1989 study that used rabbit ears; a "2" means mildly comedogenic and a "1" means low irritancy.
Here's the catch: rabbit skin is more sensitive than human skin and throws a lot of false positives. A 1996 reappraisal found that ingredients rated 1-2 in the rabbit ear tests are generally safe for humans.
Remember comedogenic ratings are unable to assess the entire formula of a product or how it will react on your skin. Just be sure to patch test if you are unsure about certain ingredients.
This ingredient is not fungal acne safe. Cetearyl alcohol is a fatty alcohol with chain lengths that fall within the range that Malassezia can metabolize.
A 2019 study has also observed Malassezia growth in the presence of this ingredient, confirming it to be not-fungal acne safe.
Cetearyl Glucoside is a sugar-based emulsifier. It is usually made by combining cetearyl alcohol and glucose.
Belonging to the aklyl polyglucoside (APG) family, Cetearyl Glucoside has a sugar "head" that loves water and a fatty "tail" that loves oil. This means it can shuffle oil and water into a stable and smooth emulsion.
Typical use levels are between 1-5% and this ingredient is considered to be non-irritating by the CIR Expert Panel Review.
Once applied, your skin's glucoside hydrolases breaks it down to the parent fatty alcohol and glucose. This is why this ingredient may not be fungal acne safe.
Cetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product.
Its main roles are:
Though it has "alcohol" in the name, it is not related to denatured alcohol or ethyl alcohol.
The FDA allows products labeled "alcohol-free" to have fatty alcohols.
This ingredient may not be fungal acne safe. It is a primary fatty alcohol with a chain length above 12 carbons. A study from 2019 show Malassezia can feed on fatty alcohols in this range, so it may trigger fungal acne in those prone to it.
Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.
There are two forms of panthenol: D and L.
D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.
Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):
Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.
This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
This ingredient is also referred to as pro-vitamin B5.
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Also called "fragrance", this ingredient 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.
For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.
The term 'parfum' or '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 by INCI standards.
One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.
Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Parfum can also be used to mask or cover an unpleasant scent.
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.
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. If you see this, drink a glass of water. Remember to stay hydrated!