La Roche-Posay 10% Pure Vitamin C Serum Versus Estée Lauder Advanced Night Repair Synchronized Recovery Complex II
This brightening serum is formulated around Ascorbic Acid and Salicylic Acid to brighten dull-looking skin and refine skin texture.
This barrier-repair serum is formulated around Bifida Ferment Lysate to strengthen the skin barrier.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningAscorbic Acid
AntioxidantCyclohexasiloxane
EmollientGlycerin
HumectantAlcohol Denat.
AntimicrobialPotassium Hydroxide
BufferingPolymethylsilsesquioxane
Polysilicone-11
Dimethicone
EmollientPropylene Glycol
HumectantPentaerythrityl Tetraethylhexanoate
EmollientC13-14 Isoparaffin
EmollientTocopherol
AntioxidantSodium Hyaluronate
HumectantHydrolyzed Hyaluronic Acid
HumectantAdenosine
Skin ConditioningAcetyl Dipeptide-1 Cetyl Ester
Skin ConditioningPEG-20 Methyl Glucose Sesquistearate
EmulsifyingPoloxamer 338
EmulsifyingSalicylic Acid
MaskingPolyacrylamide
Toluene Sulfonic Acid
SurfactantAmmonium Polyacryloyldimethyl Taurate
Emulsion StabilisingXanthan Gum
EmulsifyingCaprylyl Glycol
EmollientDisodium EDTA
BHT
AntioxidantLaureth-7
EmulsifyingParfum
MaskingWater, Ascorbic Acid, Cyclohexasiloxane, Glycerin, Alcohol Denat., Potassium Hydroxide, Polymethylsilsesquioxane, Polysilicone-11, Dimethicone, Propylene Glycol, Pentaerythrityl Tetraethylhexanoate, C13-14 Isoparaffin, Tocopherol, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Adenosine, Acetyl Dipeptide-1 Cetyl Ester, PEG-20 Methyl Glucose Sesquistearate, Poloxamer 338, Salicylic Acid, Polyacrylamide, Toluene Sulfonic Acid, Ammonium Polyacryloyldimethyl Taurate, Xanthan Gum, Caprylyl Glycol, Disodium EDTA, BHT, Laureth-7, Parfum
Water
Skin ConditioningBifida Ferment Lysate
Skin ConditioningMethyl Gluceth-20
HumectantPEG-75
HumectantBis-PEG-18 Methyl Ether Dimethyl Silane
EmollientButylene Glycol
HumectantPropanediol
SolventCola Acuminata Seed Extract
Skin ConditioningHydrolyzed Algin
Pantethine
EmollientCaffeine
Skin ConditioningLecithin
EmollientTripeptide-32
Skin ConditioningEthylhexylglycerin
Skin ConditioningSodium Rna
Skin ConditioningBisabolol
AntioxidantGlycereth-26
HumectantSqualane
EmollientSodium Hyaluronate
HumectantOleth-3 Phosphate
SurfactantCaprylyl Glycol
EmollientLactobacillus Ferment
Skin ConditioningOleth-3
EmulsifyingOleth-5
EmulsifyingAnthemis Nobilis Flower Extract
MaskingFaex Extract
Skin ConditioningCholeth-24
EmulsifyingHydrogenated Lecithin
EmulsifyingCeteth-24
CleansingTocopheryl Acetate
AntioxidantEthylhexyl Methoxycinnamate
UV AbsorberHexylene Glycol
EmulsifyingCarbomer
Emulsion StabilisingTriethanolamine
BufferingTrisodium EDTA
BHT
AntioxidantXanthan Gum
EmulsifyingPhenoxyethanol
PreservativeCI 14700
Cosmetic ColorantCI 19140
Cosmetic ColorantWater, Bifida Ferment Lysate, Methyl Gluceth-20, PEG-75, Bis-PEG-18 Methyl Ether Dimethyl Silane, Butylene Glycol, Propanediol, Cola Acuminata Seed Extract, Hydrolyzed Algin, Pantethine, Caffeine, Lecithin, Tripeptide-32, Ethylhexylglycerin, Sodium Rna, Bisabolol, Glycereth-26, Squalane, Sodium Hyaluronate, Oleth-3 Phosphate, Caprylyl Glycol, Lactobacillus Ferment, Oleth-3, Oleth-5, Anthemis Nobilis Flower Extract, Faex Extract, Choleth-24, Hydrogenated Lecithin, Ceteth-24, Tocopheryl Acetate, Ethylhexyl Methoxycinnamate, Hexylene Glycol, Carbomer, Triethanolamine, Trisodium EDTA, BHT, Xanthan Gum, Phenoxyethanol, CI 14700, CI 19140
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
BHT is a synthetic antioxidant and preservative.
As an antioxidant, it helps your body fight off free-radicals. Free-radicals are molecules that may damage your skin cells.
As a preservative, it is used to stabilize products and prevent them from degrading. Specifically, BHT prevents degradation from oxidation.
The concerns related to BHT come from oral studies; this ingredient is currently allowed for use by both the FDA and EU.
However, it was recently restricted for use in the UK as of April 2024.
Learn more about BHTCaprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Learn more about Caprylyl GlycolSodium 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.
Learn more about Sodium HyaluronateWater. 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!
Learn more about WaterXanthan 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.
Learn more about Xanthan Gum