Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Olay Regenerist Retinol 24 + Peptide Night Moisturizer Versus Neutrogena Deep Moisture Night Cream

Olay Regenerist Retinol 24 + Peptide Night Moisturizer Versus Neutrogena Deep Moisture Night Cream Detailed comparison of Olay Regenerist Retinol 24 + Peptide Night Moisturizer versus Neutrogena Deep Moisture Night Cream. This anti-aging night moisturizer is f

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

Olay Regenerist Retinol 24 + Peptide Night Moisturizer Versus Neutrogena Deep Moisture Night Cream Detailed comparison of Olay Regenerist Retinol 24 + Peptide Night Moisturizer versus Neutrogena Deep Moisture Night Cream. This anti-aging night moisturizer is formulated around Retinol and Niacinamide to soften the look of wrinkles and refine skin texture. This barrier-repair night moisturizer is formulated around Butyrospermum Parkii Butter and Petrolatum to strengthen the skin barrier and hydrate skin. Water Dimethicone Glycerin Tapioca Starch Dimethicone Crosspolymer Retinol Retinyl Propionate Niacinamide Palmitoyl Pentapeptide-4 Polyacrylamide C13-14 Isoparaffin DMDM Hydantoin Polysorbate 20 Laureth-4 Acrylates/C10-30 Alkyl Acrylate Crosspolymer Laureth-7 Dimethiconol Polymethylsilsesquioxane Aminomethyl Propanol Titanium Dioxide Disodium EDTA Iodopropynyl Butylcarbamate Caprylic/Capric Triglyceride Water, Dimethicone, Glycerin, Tapioca Starch, Dimethicone Crosspolymer, Retinol, Retinyl Propionate, Niacinamide, Palmitoyl Pentapeptide-4, Polyacrylamide, C13-14 Isoparaffin, DMDM Hydantoin, Polysorbate 20, Laureth-4, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Laureth-7, Dimethiconol, Polymethylsilsesquioxane, Aminomethyl Propanol, Titanium Dioxide, Disodium EDTA, Iodopropynyl Butylcarbamate, Caprylic/Capric Triglyceride Cetearyl Alcohol Dicaprylyl Carbonate Stearic Acid Butyrospermum Parkii Butter Silica BHT Petrolatum Ethylhexylglycerin Cholecalciferol Calcium Chloride Sodium Polyacrylate Caprylyl Glycol Phenoxyethanol Parfum Water, Glycerin, Cetearyl Alcohol, Dicaprylyl Carbonate, Stearic Acid, Butyrospermum Parkii Butter, Silica, BHT, Petrolatum, Ethylhexylglycerin, Cholecalciferol, Calcium Chloride, Caprylic/Capric Triglyceride, Sodium Polyacrylate, Caprylyl Glycol, Phenoxyethanol, Parfum Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss. Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid. In practice, that translates to a long shelf life and a consistently elegant skin feel. While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns. Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source. This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out. This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures at concentrations as low as 0.2%. 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!