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Avobenzone19 3% (sunscreen), Homosalate11 5% (sunscreen), Octisalate7 5% (sunscreen), Octocrylene8 7% (sunscreen) Water (La Roche-Posay Prebiotic Thermal Water), Glycerin12, Silica4, Dimethicone, Niacinamide9, PEG-100 Stearate5, Glyceryl Stearate13, Stearic Acid3, Stearyl Alcohol, Allantoin21, Ceramide1 NP, Dimethicone/vinyl Dimethicone Crosspolymer, Sodium Hydroxide, Myristic Acid10, Myristyl Alcohol, Palmitic Acid6, Ammonium Polyacryloyldimethyl Taurate20, Disodium Edta15, Capryloyl Glycine14, Caprylyl Glycol18, Citric Acid16, Xanthan Gum, T-butyl Alcohol2, Cetyl Alcohol17, Tocopherol

La Roche-Posay Repair Moisturizer SPF 30

IngredientWhat it does
1ceramidecan help restore the skin's barrier system; improves texture, reduces topical irritation, restores moisture
2t-butyl alcoholUsed as a solvent and denaturant.
3stearic acidemulsifier; cleaning agent; stabilizes emulsions; lipophilic thickener; texturizer. Stearic acid is naturally found in skin and is used in cleansers to reduce cleansing-induced damage, aid in moisturization, and replenish with skin-natural lipids.
4silicaAbsorbent powder & thickening agent; gives products that "dry-touch" feel; silica is a main component of collagen
5PEG-100 Stearatea moisturizing emollient & emulsifier
6palmitic acidemollient; emulsifier
7Octisalatechemical sunscreen (primarily UVB filter); emollient & water-resistant properties; oil-soluble & FDA approved; also used as a fragrance ingredient
8OctocryleneAbsorbs UVB & UVA2 rays
9niacinamideProven healing antioxidant; stimulates collagen; some UV protection; reduces hyperpigmentation; anti-inflammatory; anti-acne; anti-rosacea
10myristic aciddetergent cleansing agent; makes a product foamy. Can be drying.
11Homosalatesunscreen that provides UVB protection but its UVA range is very narrow so it's combined with other sunscreens
12GlycerinA humectant moisturizer; usually used as a base in (light) moisturizers
13glyceryl stearateself-emulsifying emollient & thickening agent, the higher up an ingredient list it is, the thicker the formula
14glycinebuffering agent; keeps skin moist; said to relieve itching
15EdtaChelating agents bind up trace metal ion contaminants in your water-containing cosmetic thus keeping the product microbe free for longer.
16citric acidmainly used as a cleaning agent & preservative; pH adjuster; in higher concentration it's an AHA (in peels & antiaging products)
17Cetyl Alcoholemollient moisturizing, emulsifying, emulsion stabilizing, foam boosting, masks the scent of other ingredients in a formula , opacifying aka makes the formula less clear, cleansing surfactant, viscosity controlling
18caprylyl glycolAn alcohol, derived from a plant which is used as an emollient and coconut derived preservative.
19avobenzoneUVA sunscreen
20Ammonium Polyacryloyldimethyl Taurateemulsion stabilizing, viscosity controlling
21allantoinconsidered an effective anti-irritant; an occlusive that temporarily helps protect from chapped skin or windburn damage; softens skin & exfoliates; also a preservative

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