CeraVe Hydrating Hyaluronic Acid Serum Versus La Roche-Posay Toleriane Rosaliac AR

CeraVe Hydrating Hyaluronic Acid Serum Versus La Roche-Posay Toleriane Rosaliac AR

This hydrating serum is formulated around Sodium Hyaluronate and Ceramide NP to hydrate skin and strengthen the skin barrier.

This calming moisturizer is formulated around Sphingomonas Ferment Extract and Acetyl Dipeptide-1 Cetyl Ester to calm redness.

What's inside

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

Water

Glycerin

Cetearyl Ethylhexanoate

Dimethicone

Ammonium Polyacryloyldimethyl Taurate

Sodium Hyaluronate

Panthenol

Ceramide NP

Ceramide AP

Ceramide EOP

Carbomer

Cetearyl Alcohol

Behentrimonium Methosulfate

Sodium Hydroxide

Sodium Lauroyl Lactylate

Cholesterol

Phenoxyethanol

Disodium EDTA

Isopropyl Myristate

Caprylyl Glycol

Citric Acid

Xanthan Gum

Phytosphingosine

Ethylhexylglycerin

Water, Glycerin, Cetearyl Ethylhexanoate, Dimethicone, Ammonium Polyacryloyldimethyl Taurate, Sodium Hyaluronate, Panthenol, Ceramide NP, Ceramide AP, Ceramide EOP, Carbomer, Cetearyl Alcohol, Behentrimonium Methosulfate, Sodium Hydroxide, Sodium Lauroyl Lactylate, Cholesterol, Phenoxyethanol, Disodium EDTA, Isopropyl Myristate, Caprylyl Glycol, Citric Acid, Xanthan Gum, Phytosphingosine, Ethylhexylglycerin

Isostearyl Neopentanoate

Butylene Glycol

Boron Nitride

Butyrospermum Parkii Butter

CI 77891

Pentylene Glycol

Hydrogenated Coco-Glycerides

Polysorbate 20

Zea Mays Starch

Schisandra Sphenanthera Fruit Extract

Tin Oxide

Sorbitan Oleate

Glyceryl Acrylate/Acrylic Acid Copolymer

Glyceryl Stearate Citrate

Isohexadecane

Sphingomonas Ferment Extract

Silica

Aluminum Hydroxide

Mannitol

Hydrogenated Lecithin

Trisodium Ethylenediamine Disuccinate

Acetyl Dipeptide-1 Cetyl Ester

Maltodextrin

Polysorbate 80

Acrylamide/Sodium Acryloyldimethyltaurate Copolymer

Mica

CI 77288

CI 77491

CI 77492

CI 77499

Water, Glycerin, Isostearyl Neopentanoate, Butylene Glycol, Boron Nitride, Butyrospermum Parkii Butter, CI 77891, Pentylene Glycol, Hydrogenated Coco-Glycerides, Polysorbate 20, Zea Mays Starch, Schisandra Sphenanthera Fruit Extract, Tin Oxide, Sorbitan Oleate, Glyceryl Acrylate/Acrylic Acid Copolymer, Glyceryl Stearate Citrate, Isohexadecane, Sphingomonas Ferment Extract, Silica, Aluminum Hydroxide, Mannitol, Ammonium Polyacryloyldimethyl Taurate, Hydrogenated Lecithin, Caprylyl Glycol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Acetyl Dipeptide-1 Cetyl Ester, Maltodextrin, Polysorbate 80, Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Mica, CI 77288, CI 77491, CI 77492, CI 77499

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.

Ammonium Polyacryloyldimethyl Taurate is a polymer made from ammonium salts. It works as a thickener, emulsifier, and texture enhancer that gives gel-creams a silky, lightweight feel.

This ingredient is versatile and low-maintenance so manufacturers love working with it.

Typical usage levels in cosmetics are usually low and in the range of 0.015 - 2.3%.

Caprylyl 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).

Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.

Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.

However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.

Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.

In skincare formulas, citric acid can:

While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.

Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.

Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger.

However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure.

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!

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