Skin science article
Paula's Choice Skin Revealing Body Lotion 10% AHA Versus Eucerin Roughness Relief Lotion
Paula's Choice Skin Revealing Body Lotion 10% AHA Versus Eucerin Roughness Relief Lotion What's inside Key Ingredients Benefits Concerns Ingredients Side-by-side Water Glycolic Acid Cyclopentasiloxane Dimethicone Glycerin Glyceryl Stearate Stearic Acid Cetyl A
Paula's Choice Skin Revealing Body Lotion 10% AHA Versus Eucerin Roughness Relief Lotion
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycolic Acid
Cyclopentasiloxane
Dimethicone
Glycerin
Glyceryl Stearate
Stearic Acid
Cetyl Alcohol
Butyrospermum Parkii Butter
Sodium Hydroxide
PEG-100 Stearate
Tetrahexyldecyl Ascorbate
Tocopheryl Acetate
Chamomilla Recutita Flower Extract
Vitis Vinifera Seed Oil
Camellia Oleifera Leaf Extract
Epilobium Angustifolium Extract
Allantoin
Butylene Glycol
Xanthan Gum
Disodium EDTA
Sodium Benzoate
Phenoxyethanol
Water, Glycolic Acid, Cyclopentasiloxane, Dimethicone, Glycerin, Glyceryl Stearate, Stearic Acid, Cetyl Alcohol, Butyrospermum Parkii Butter, Sodium Hydroxide, PEG-100 Stearate, Tetrahexyldecyl Ascorbate, Tocopheryl Acetate, Chamomilla Recutita Flower Extract, Vitis Vinifera Seed Oil, Camellia Oleifera Leaf Extract, Epilobium Angustifolium Extract, Allantoin, Butylene Glycol, Xanthan Gum, Disodium EDTA, Sodium Benzoate, Phenoxyethanol
Urea
Isopropyl Stearate
Dicaprylyl Ether
Glyceryl Glucoside
Sodium Lactate
Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate
Tapioca Starch
Carnitine
Cetearyl Alcohol
Ceramide NP
Arginine Hcl
Sodium PCA
Histidine
Lactic Acid
Mannitol
Arginine
Serine
Sucrose
PCA
Citrulline
Glycogen
Alanine
Threonine
Glutamic Acid
Lysine Hcl
Sodium Chloride
1,2-Hexanediol
Potassium Sorbate
Water, Urea, Glycerin, Isopropyl Stearate, Dicaprylyl Ether, Glyceryl Glucoside, Sodium Lactate, Butyrospermum Parkii Butter, Polyglyceryl-4 Diisostearate/Polyhydroxystearate/Sebacate, Tapioca Starch, Carnitine, Cetearyl Alcohol, Ceramide NP, Arginine Hcl, Sodium PCA, Histidine, Lactic Acid, Mannitol, Arginine, Serine, Sucrose, PCA, Citrulline, Glycogen, Alanine, Threonine, Glutamic Acid, Lysine Hcl, Sodium Chloride, 1,2-Hexanediol, Phenoxyethanol, Potassium Sorbate
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.
This ingredient is also known as shea butter. It is a plant-derived extract from the nuts of the Africa shea tree and one of the most well-studied emollients.
Because it has a high concentration of fatty acids (primarily oleic, stearic, and linoleic) it is able to form a protective barrier on the skin's surface. This helps seal in moisture and prevents transepidermal water loss (TEWL).
In vitro research found an increase in skin hydration by 58% and a decrease in TEWL by 37.8% after 24 hours of applying this ingredient (pretty impressive for a single ingredient!).
Besides hydration, shea butter also contains triterpenes that have anti-inflammatory potential. In particule, lupeol cinnamate has shown the highest anti-inflammatory activity in vivo.
Shea butter also contains vitamins A and E which may contribute to antioxidant activity.
While Shea Butter has an SPF rating of about 3-4, it is not a sunscreen replacement.
This ingredient may not be fungal acne safe because its fatty acids fall within the C11-C24 range that the Malassezia yeast can metabolize.
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.
Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
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!