Skin science article
CeraVe SA Lotion for Rough and Bumpy Skin Versus First Aid Beauty KP Bump Eraser Body Scrub With 10% AHA
CeraVe SA Lotion for Rough and Bumpy Skin Versus First Aid Beauty KP Bump Eraser Body Scrub With 10% AHA This smoothing moisturizer is formulated around Salicylic Acid and Ceramide NP to refine skin texture and strengthen the skin barrier. What's inside Key In
CeraVe SA Lotion for Rough and Bumpy Skin Versus First Aid Beauty KP Bump Eraser Body Scrub With 10% AHA
This smoothing moisturizer is formulated around Salicylic Acid and Ceramide NP to refine skin texture and strengthen the skin barrier.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Salicylic Acid
Water
Glycerin
Paraffinum Liquidum
Triethanolamine
Glyceryl Stearate
Ammonium Lactate
PEG-100 Stearate
Cetearyl Alcohol
Cetyl Alcohol
Zea Mays Oil
Ceramide NP
Ceramide AP
Ceramide EOP
Carbomer
Behentrimonium Methosulfate
Dimethicone
Methylparaben
Sodium Lauroyl Lactylate
Cholecalciferol
Cholesterol
Disodium EDTA
Propylparaben
Hydrolyzed Hyaluronic Acid
Phytosphingosine
Xanthan Gum
Salicylic Acid, Water, Glycerin, Paraffinum Liquidum, Triethanolamine, Glyceryl Stearate, Ammonium Lactate, PEG-100 Stearate, Cetearyl Alcohol, Cetyl Alcohol, Zea Mays Oil, Ceramide NP, Ceramide AP, Ceramide EOP, Carbomer, Behentrimonium Methosulfate, Dimethicone, Methylparaben, Sodium Lauroyl Lactylate, Cholecalciferol, Cholesterol, Disodium EDTA, Propylparaben, Hydrolyzed Hyaluronic Acid, Phytosphingosine, Xanthan Gum
Pumice
Glycolic Acid
Sodium Cocoyl Isethionate
Lactic Acid
Stearic Acid
Sodium Hydroxide
Palmitic Acid
C12-15 Alkyl Benzoate
Sorbitol
Colloidal Oatmeal
Tocopherol
Chrysanthemum Parthenium Extract
Camellia Sinensis Leaf Extract
Glycyrrhiza Glabra Root Extract
Salix Nigra Bark Extract
Bisabolol
Hydrogenated Coconut Acid
Steareth-20
Steareth-21
Myristic Acid
Sodium Isethionate
Phenoxyethanol
Potassium Sorbate
Sodium Benzoate
Leuconostoc/Radish Root Ferment Filtrate
EDTA
Pumice, Water, Glycolic Acid, Sodium Cocoyl Isethionate, Lactic Acid, Dimethicone, Stearic Acid, Cetearyl Alcohol, Sodium Hydroxide, Palmitic Acid, Glycerin, C12-15 Alkyl Benzoate, Sorbitol, Colloidal Oatmeal, Tocopherol, Chrysanthemum Parthenium Extract, Camellia Sinensis Leaf Extract, Glycyrrhiza Glabra Root Extract, Salix Nigra Bark Extract, Bisabolol, Hydrogenated Coconut Acid, Xanthan Gum, Steareth-20, Steareth-21, Myristic Acid, Sodium Isethionate, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Leuconostoc/Radish Root Ferment Filtrate, EDTA
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.
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.
Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane.
What it does:
Dimethicone comes in different viscosities:
Depending on the viscosity, dimethicone has different properties.
Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity.
This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient.
Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy.
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.
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!
Xanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.