Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

La Roche-Posay Toleriane Dermallergo Ultra Soothing Repair Moisturizer Versus First Aid Beauty Firming Collagen Cream With Peptides + Niacinamide

La Roche-Posay Toleriane Dermallergo Ultra Soothing Repair Moisturizer Versus First Aid Beauty Firming Collagen Cream With Peptides + Niacinamide Detailed comparison of La Roche-Posay Toleriane Dermallergo Ultra Soothing Repair Moisturizer versus First Aid Bea

This source-based comparison does not add ratings or recommend a winner.

La Roche-Posay Toleriane Dermallergo Ultra Soothing Repair Moisturizer Versus First Aid Beauty Firming Collagen Cream With Peptides + Niacinamide Detailed comparison of La Roche-Posay Toleriane Dermallergo Ultra Soothing Repair Moisturizer versus First Aid Beauty Firming Collagen Cream With Peptides + Niacinamide. This barrier-repair moisturizer is formulated around Squalane and Butyrospermum Parkii Butter to strengthen the skin barrier and calm redness. This anti-aging moisturizer is formulated around Niacinamide to soften the look of wrinkles and strengthen the skin barrier. Water Isocetyl Stearate Squalane Butyrospermum Parkii Butter Dimethicone Glycerin Zea Mays Starch Pentylene Glycol Butylene Glycol Glyceryl Stearate PEG-100 Stearate Cetyl Alcohol Salvia Miltiorrhiza Root Extract Dimethiconol Sodium Hydroxide Sphingomonas Ferment Extract Caprylyl Glycol Citric Acid Acetyl Dipeptide-1 Cetyl Ester Acrylates/C10-30 Alkyl Acrylate Crosspolymer Water, Isocetyl Stearate, Squalane, Butyrospermum Parkii Butter, Dimethicone, Glycerin, Zea Mays Starch, Pentylene Glycol, Butylene Glycol, Glyceryl Stearate, PEG-100 Stearate, Cetyl Alcohol, Salvia Miltiorrhiza Root Extract, Dimethiconol, Sodium Hydroxide, Sphingomonas Ferment Extract, Caprylyl Glycol, Citric Acid, Acetyl Dipeptide-1 Cetyl Ester, Acrylates/C10-30 Alkyl Acrylate Crosspolymer Niacinamide C12-15 Alkyl Benzoate Caprylic/Capric Triglyceride Palmitic Acid Stearic Acid Glyceryl Stearate Se Cetearyl Alcohol Panthenol Colloidal Oatmeal Collagen Ceramide NP Hexapeptide-9 Allantoin Saccharomyces Ferment Lauroyl Lysine Tetrasodium Glutamate Diacetate Xanthan Gum Phenoxyethanol Water, Glycerin, Niacinamide, C12-15 Alkyl Benzoate, Caprylic/Capric Triglyceride, Palmitic Acid, Stearic Acid, Glyceryl Stearate, Glyceryl Stearate Se, Dimethicone, Cetearyl Alcohol, Panthenol, Colloidal Oatmeal, Collagen, Squalane, Ceramide NP, Hexapeptide-9, Butyrospermum Parkii Butter, Allantoin, Saccharomyces Ferment, Caprylyl Glycol, Lauroyl Lysine, Butylene Glycol, Tetrasodium Glutamate Diacetate, Xanthan Gum, Phenoxyethanol, Sodium Hydroxide These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Butylene Glycol (or BG) is used within cosmetic products for a few different reasons: Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients. Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness. This ingredient is also known as shea butter. It is a plant-derived extract from the nuts of the Africa shea tree and one of the most well-studied emollients. Because it has a high concentration of fatty acids (primarily oleic, stearic, and linoleic) it is able to form a protective barrier on the skin's surface. This helps seal in moisture and prevents transepidermal water loss (TEWL). In vitro research found an increase in skin hydration by 58% and a decrease in TEWL by 37.8% after 24 hours of applying this ingredient (pretty impressive for a single ingredient!). Besides hydration, shea butter also contains triterpenes that have anti-inflammatory potential. In particule, lupeol cinnamate has shown the highest anti-inflammatory activity in vivo. Shea butter also contains vitamins A and E which may contribute to antioxidant activity. While Shea Butter has an SPF rating of about 3-4, it is not a sunscreen replacement. This ingredient may not be fungal acne safe because its fatty acids fall within the C11-C24 range that the Malassezia yeast can metabolize. 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). Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane. What it does: Dimethicone comes in different viscosities: Depending on the viscosity, dimethicone has different properties. Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity. This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient. Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy. 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 you