Prequel Half & Half Peptides & Ceramides Fluid Moisturizer Versus La Roche-Posay Cicaplast Pro Recovery Skincare
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
HumectantPropanediol
SolventIsopropyl Myristate
EmollientEthylhexyl Olivate
Skin ConditioningSqualane
EmollientHydrolyzed Rice Protein
Skin ConditioningCeramide NP
Skin ConditioningCeramide As
Skin ConditioningCeramide Ns
Skin ConditioningCeramide EOP
Skin ConditioningCeramide AP
Skin ConditioningHexapeptide-11
Skin ConditioningMatrixyl 3000
Polyglyceryl-10 Stearate
Skin ConditioningTriolein
Skin ConditioningAmmonium Acryloyldimethyltaurate/Vp Copolymer
Glyceryl Oleate
EmollientUndecane
EmollientHydroxyacetophenone
AntioxidantGlyceryl Dioleate
EmollientCaprylyl Glycol
EmollientXanthan Gum
EmulsifyingTridecane
PerfumingBetaine
HumectantSodium Stearoyl Glutamate
CleansingCitric Acid
BufferingSodium Phytate
Sodium PCA
HumectantSodium Hydroxide
BufferingSodium Lactate
BufferingPCA
HumectantSodium Benzoate
MaskingSerine
MaskingAlanine
MaskingPalmitic Acid
EmollientGlycine
BufferingHydrogenated Lecithin
EmulsifyingEthylhexyl Palmitate
EmollientButylene Glycol
HumectantPhenoxyethanol
PreservativeEthylhexylglycerin
Skin ConditioningGlutamic Acid
HumectantLysine Hcl
Skin ConditioningThreonine
Arginine
MaskingProline
Skin ConditioningTocopherol
AntioxidantCarbomer
Emulsion StabilisingPolysorbate 20
EmulsifyingWater, Glycerin, Propanediol, Isopropyl Myristate, Ethylhexyl Olivate, Squalane, Hydrolyzed Rice Protein, Ceramide NP, Ceramide As, Ceramide Ns, Ceramide EOP, Ceramide AP, Hexapeptide-11, Matrixyl 3000, Polyglyceryl-10 Stearate, Triolein, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Glyceryl Oleate, Undecane, Hydroxyacetophenone, Glyceryl Dioleate, Caprylyl Glycol, Xanthan Gum, Tridecane, Betaine, Sodium Stearoyl Glutamate, Citric Acid, Sodium Phytate, Sodium PCA, Sodium Hydroxide, Sodium Lactate, PCA, Sodium Benzoate, Serine, Alanine, Palmitic Acid, Glycine, Hydrogenated Lecithin, Ethylhexyl Palmitate, Butylene Glycol, Phenoxyethanol, Ethylhexylglycerin, Glutamic Acid, Lysine Hcl, Threonine, Arginine, Proline, Tocopherol, Carbomer, Polysorbate 20
Water
Skin ConditioningGlycerin
HumectantDimethicone
EmollientPanthenol
Skin ConditioningPentylene Glycol
Skin ConditioningC30-45 Alkyl Dimethicone
Skin ConditioningPolybutene
Sodium Citrate
BufferingPEG/PPG-18/18 Dimethicone
EmulsifyingZinc Gluconate
Skin ConditioningMadecassoside
AntioxidantDimethiconol
EmollientManganese Gluconate
Skin ConditioningSodium Hyaluronate
HumectantCopper Gluconate
Skin ConditioningCaprylyl Glycol
EmollientCitric Acid
BufferingPolysorbate 20
EmulsifyingTocopherol
AntioxidantWater, Glycerin, Dimethicone, Panthenol, Pentylene Glycol, C30-45 Alkyl Dimethicone, Polybutene, Sodium Citrate, PEG/PPG-18/18 Dimethicone, Zinc Gluconate, Madecassoside, Dimethiconol, Manganese Gluconate, Sodium Hyaluronate, Copper Gluconate, Caprylyl Glycol, Citric Acid, Polysorbate 20, Tocopherol
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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 or alcohol, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Learn more about Caprylyl GlycolCitric 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.
Read more about some other popular AHA's here:
Learn more about Citric AcidGlycerin (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.
Learn more about GlycerinPolysorbate 20 is a gentle, water-soluble emulsifier and mild surfactant. It stops oil and water from separating to keep your formulas blended and stable.
It also acts as a mild penetration enhancer by helping active ingredients absorb slightly better.
The common safety discussion around this ingredient involves a manufacturing byproduct called 1,4-dioxane.
Trace amounts can form during production but the EU's Scientific Committee on Consumer Safety has concluded that levels at/below 10 ppm in finished products are safe (commercial products consistently fall within acceptable margins).
True allergic reactions are uncommon and the CIR Expert Panel has confirmed this ingredient to be safe as used in cosmetics.
Because it is derived from lauric acid, it may not be fungal acne safe.
Learn more about Polysorbate 20Tocopherol is a fat-soluble antioxidant known as Vitamin E.
You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.
Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.
It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.
This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.
This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.
Concentrations usually range from 0.1-1% in most leave-on products.
Learn more about TocopherolWater. 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 Water