Skin science article
CeraVe Skin Renewing Retinol Serum Versus L'Oreal Revitalift 1.5% Pure Hyaluronic Acid Serum
CeraVe Skin Renewing Retinol Serum Versus L'Oreal Revitalift 1.5% Pure Hyaluronic Acid Serum This anti-aging serum is formulated around Ceramide NP and Niacinamide to soften the look of wrinkles and refine skin texture. This hydrating serum is formulated aroun
CeraVe Skin Renewing Retinol Serum Versus L'Oreal Revitalift 1.5% Pure Hyaluronic Acid Serum
This anti-aging serum is formulated around Ceramide NP and Niacinamide to soften the look of wrinkles and refine skin texture.
This hydrating serum is formulated around Sodium Hyaluronate and Dipeptide Diaminobutyroyl Benzylamide Diacetate to hydrate skin and soften the look of wrinkles.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Glycerin
Caprylic/Capric Triglyceride
Potassium Cetyl Phosphate
Hydrogenated Palm Glycerides
Polysorbate 20
PEG-40 Stearate
Cyclopentasiloxane
Hydroxyethylcellulose
Potassium Phosphate
Ceramide NP
Ceramide AP
Ceramide EOP
Carbomer
Niacinamide
Isoceteth-10
Dimethicone/Vinyl Dimethicone Crosspolymer
Triethanolamine
Cetearyl Alcohol
Behentrimonium Methosulfate
Cichorium Intybus Root Extract
Lecithin
Retinol
Silica
Sodium Lauroyl Lactylate
Cholesterol
Phenoxyethanol
Tocopherol
Alcohol
Hydroxyacetophenone
Citric Acid
Hydrolyzed Hyaluronic Acid
Pentylene Glycol
Xanthan Gum
Phytosphingosine
Butyrospermum Parkii Butter
Ethylhexylglycerin
Water, Glycerin, Caprylic/Capric Triglyceride, Potassium Cetyl Phosphate, Hydrogenated Palm Glycerides, Polysorbate 20, PEG-40 Stearate, Cyclopentasiloxane, Hydroxyethylcellulose, Potassium Phosphate, Ceramide NP, Ceramide AP, Ceramide EOP, Carbomer, Niacinamide, Isoceteth-10, Dimethicone/Vinyl Dimethicone Crosspolymer, Triethanolamine, Cetearyl Alcohol, Behentrimonium Methosulfate, Cichorium Intybus Root Extract, Lecithin, Retinol, Silica, Sodium Lauroyl Lactylate, Cholesterol, Phenoxyethanol, Tocopherol, Alcohol, Hydroxyacetophenone, Citric Acid, Hydrolyzed Hyaluronic Acid, Pentylene Glycol, Xanthan Gum, Phytosphingosine, Butyrospermum Parkii Butter, Ethylhexylglycerin
Hydroxyethylpiperazine Ethane Sulfonic Acid
Sodium Hyaluronate
PEG-60
Hydrogenated Castor Oil
Secale Cereale Seed Extract
Calcium Pantothenate
Dipeptide Diaminobutyroyl Benzylamide Diacetate
Ascorbyl Glucoside
Disodium EDTA
Chlorphenesin
Water, Glycerin, Hydroxyethylpiperazine Ethane Sulfonic Acid, Sodium Hyaluronate, PEG-60, Hydrogenated Castor Oil, Secale Cereale Seed Extract, Calcium Pantothenate, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Ascorbyl Glucoside, Disodium EDTA, Pentylene Glycol, Phenoxyethanol, Chlorphenesin
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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.
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.
Pentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula:
Research on alkanediols (the family pentylene glycol belongs to) show they work by disrupting microbial cell membranes. This disruption helps the primary preservative system in a product work more effectively at lower doses.
On the safety side, the Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe as used in current cosmetic practices + concentrations.
Typical use levels in a formula run about 1-5%.
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!