Skin science article
Olay Regenerist Collagen Peptide 24 Moisturizer (Fragrance Free) Versus SKIN1004 Madagascar Centella Soothing Cream
Olay Regenerist Collagen Peptide 24 Moisturizer (Fragrance Free) Versus SKIN1004 Madagascar Centella Soothing Cream This anti-aging moisturizer is formulated around Niacinamide and Panthenol to soften the look of wrinkles and refine skin texture. This calming
Olay Regenerist Collagen Peptide 24 Moisturizer (Fragrance Free) Versus SKIN1004 Madagascar Centella Soothing Cream
This anti-aging moisturizer is formulated around Niacinamide and Panthenol to soften the look of wrinkles and refine skin texture.
This calming moisturizer is formulated around Centella Asiatica Extract and Dipotassium Glycyrrhizate to calm redness and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycerin
Niacinamide
Isohexadecane
Dimethicone
Isopropyl Isostearate
Stearyl Alcohol
Polyacrylamide
Panthenol
Palmitoyl Pentapeptide-4
Tremella Fuciformis Sporocarp Extract
Tapioca Starch
C13-14 Isoparaffin
Caprylyl Glycol
Dimethiconol
Laureth-7
Cetearyl Alcohol
Cetearyl Glucoside
Palmitic Acid
Stearic Acid
Cetyl Alcohol
Behenyl Alcohol
Disodium EDTA
PEG-100 Stearate
Titanium Dioxide
Polymethylsilsesquioxane
1,2-Hexanediol
Phenoxyethanol
Water, Glycerin, Niacinamide, Isohexadecane, Dimethicone, Isopropyl Isostearate, Stearyl Alcohol, Polyacrylamide, Panthenol, Palmitoyl Pentapeptide-4, Tremella Fuciformis Sporocarp Extract, Tapioca Starch, C13-14 Isoparaffin, Caprylyl Glycol, Dimethiconol, Laureth-7, Cetearyl Alcohol, Cetearyl Glucoside, Palmitic Acid, Stearic Acid, Cetyl Alcohol, Behenyl Alcohol, Disodium EDTA, PEG-100 Stearate, Titanium Dioxide, Polymethylsilsesquioxane, 1,2-Hexanediol, Phenoxyethanol
Propanediol
Dipropylene Glycol
Cyclopentasiloxane
Centella Asiatica Extract
Cyclohexasiloxane
Trehalose
Caprylyl Methicone
C12-14 Pareth-12
Carbomer
Tromethamine
C30-45 Alkyl Cetearyl Dimethicone Crosspolymer
Ammonium Acryloyldimethyltaurate/Vp Copolymer
Butylene Glycol
Xanthan Gum
Zingiber Officinale Root Extract
Mentha Piperita Leaf Extract
Ethylhexylglycerin
Dipotassium Glycyrrhizate
Tranexamic Acid
Dextrin
Theobroma Cacao Seed Extract
Leuconostoc/Radish Root Ferment Filtrate
Biosaccharide Gum-1
Sodium Hyaluronate
Beta-Glucan
Hydrogenated Lecithin
Coptis Chinensis Root Extract
Ceramide NP
Ceramide Ng
Cholesterol
Phytosphingosine
Ceramide As
Ceramide AP
Ceramide EOP
Water, Glycerin, Propanediol, Dipropylene Glycol, Cyclopentasiloxane, Centella Asiatica Extract, 1,2-Hexanediol, Cyclohexasiloxane, Trehalose, Caprylyl Methicone, C12-14 Pareth-12, Carbomer, Tromethamine, C30-45 Alkyl Cetearyl Dimethicone Crosspolymer, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Butylene Glycol, Xanthan Gum, Zingiber Officinale Root Extract, Mentha Piperita Leaf Extract, Ethylhexylglycerin, Dipotassium Glycyrrhizate, Tranexamic Acid, Dextrin, Theobroma Cacao Seed Extract, Leuconostoc/Radish Root Ferment Filtrate, Biosaccharide Gum-1, Disodium EDTA, Sodium Hyaluronate, Beta-Glucan, Hydrogenated Lecithin, Coptis Chinensis Root Extract, Cetearyl Alcohol, Stearic Acid, Ceramide NP, Ceramide Ng, Cholesterol, Phytosphingosine, Ceramide As, Ceramide AP, Ceramide EOP
Reviews
Alternatives
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
It is a:
Humectant, drawing moisture into the skin
Emollient, helping to soften skin
Solvent, dispersing and stabilizing formulas
Preservative booster, enhancing the antimicrobial activity of other preservatives
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.
Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.
This ingredient mainly works behind the scenes and helps with:
On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.
One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).
Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.
You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.
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.
Stearic Acid is a fatty acid that is already found in your skin. It's one of the free fatty acids that works alongside ceramides and cholesterols to maintain your barrier.
In cosmetics, it is a multitasker:
Safety-wise, the CIR Expert Panel has concluded it to be safe in cosmetics when formulated to be non-irritating and non-sensitizing.
Free stearic acid is a C18 fatty acid that the Malassezia yeast can substrate, so this ingredient may not be fungal acne safe.
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!