Skin science article
L'Oreal Revitalift 1.5% Pure Hyaluronic Acid Serum Versus Beauty Pie Triple Hyaluronic Acid + Peptide Serum
L'Oreal Revitalift 1.5% Pure Hyaluronic Acid Serum Versus Beauty Pie Triple Hyaluronic Acid + Peptide Serum This hydrating serum is formulated around Sodium Hyaluronate and Dipeptide Diaminobutyroyl Benzylamide Diacetate to hydrate skin and soften the look of
L'Oreal Revitalift 1.5% Pure Hyaluronic Acid Serum Versus Beauty Pie Triple Hyaluronic Acid + Peptide Serum
This hydrating serum is formulated around Sodium Hyaluronate and Dipeptide Diaminobutyroyl Benzylamide Diacetate to hydrate skin and soften the look of wrinkles.
This hydrating serum is formulated around Hydrolyzed Hyaluronic Acid and Acetyl Dipeptide-1 Cetyl Ester to hydrate skin and soften the look of wrinkles.
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
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
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
Methylpropanediol
Dimethylsilanol Hyaluronate
Butylene Glycol
Xylitylglucoside
Anhydroxylitol
1,2-Hexanediol
Xylitol
Prunus Amygdalus Dulcis Seed Extract
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Hydrolyzed Hyaluronic Acid
Sorbitan Laurate
Xanthan Gum
Hydroxyethylcellulose
Caprylyl Glycol
Ethylhexylglycerin
Tetrasodium Glutamate Diacetate
Acetyl Dipeptide-1 Cetyl Ester
Alteromonas Ferment Extract
Phenethyl Alcohol
Hyaluronic Acid
Silanetriol
Citric Acid
Sorbic Acid
Glucose
Sodium Hydroxide
Chondrus Crispus Extract
Water, Methylpropanediol, Dimethylsilanol Hyaluronate, Glycerin, Butylene Glycol, Xylitylglucoside, Anhydroxylitol, 1,2-Hexanediol, Phenoxyethanol, Xylitol, Prunus Amygdalus Dulcis Seed Extract, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydrolyzed Hyaluronic Acid, Sorbitan Laurate, Sodium Hyaluronate, Xanthan Gum, Hydroxyethylcellulose, Caprylyl Glycol, Ethylhexylglycerin, Tetrasodium Glutamate Diacetate, Acetyl Dipeptide-1 Cetyl Ester, Alteromonas Ferment Extract, Phenethyl Alcohol, Hyaluronic Acid, Silanetriol, Citric Acid, Sorbic Acid, Glucose, Sodium Hydroxide, Chondrus Crispus Extract
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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.
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.
Sodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
Interestingly, the size of the molecule affects its behavior:
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
You'll typically see concentrations between 0.1-2% for this ingredient.
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!