Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

The Ordinary "Buffet" Versus Olay Regenerist Retinol 24 + Peptide Night Moisturizer

The Ordinary "Buffet" Versus Olay Regenerist Retinol 24 + Peptide Night Moisturizer Detailed comparison of The Ordinary "Buffet" versus Olay Regenerist Retinol 24 + Peptide Night Moisturizer. This anti-aging serum is formulated around Lactococcus Ferment Lysat

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

The Ordinary "Buffet" Versus Olay Regenerist Retinol 24 + Peptide Night Moisturizer Detailed comparison of The Ordinary "Buffet" versus Olay Regenerist Retinol 24 + Peptide Night Moisturizer. This anti-aging serum is formulated around Lactococcus Ferment Lysate and Acetyl Hexapeptide-8 to soften the look of wrinkles. This anti-aging night moisturizer is formulated around Retinol and Niacinamide to soften the look of wrinkles and refine skin texture. Water Glycerin Lactococcus Ferment Lysate Acetyl Hexapeptide-8 Pentapeptide-18 Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Palmitoyl Tripeptide-38 Dipeptide Diaminobutyroyl Benzylamide Diacetate Acetylarginyltryptophyl Diphenylglycine Sodium Hyaluronate Crosspolymer Sodium Hyaluronate Allantoin Glycine Alanine Serine Valine Isoleucine Proline Threonine Histidine Phenylalanine Arginine Aspartic Acid Trehalose Fructose Glucose Maltose Urea Sodium PCA PCA Sodium Lactate Citric Acid Hydroxypropyl Cyclodextrin Sodium Chloride Sodium Hydroxide Butylene Glycol Pentylene Glycol Acacia Senegal Gum Xanthan Gum Carbomer Polysorbate 20 PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Trisodium Ethylenediamine Disuccinate Ethoxydiglycol Sodium Benzoate Caprylyl Glycol Ethylhexylglycerin Phenoxyethanol Chlorphenesin Water, Glycerin, Lactococcus Ferment Lysate, Acetyl Hexapeptide-8, Pentapeptide-18, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-38, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Acetylarginyltryptophyl Diphenylglycine, Sodium Hyaluronate Crosspolymer, Sodium Hyaluronate, Allantoin, Glycine, Alanine, Serine, Valine, Isoleucine, Proline, Threonine, Histidine, Phenylalanine, Arginine, Aspartic Acid, Trehalose, Fructose, Glucose, Maltose, Urea, Sodium PCA, PCA, Sodium Lactate, Citric Acid, Hydroxypropyl Cyclodextrin, Sodium Chloride, Sodium Hydroxide, Butylene Glycol, Pentylene Glycol, Acacia Senegal Gum, Xanthan Gum, Carbomer, Polysorbate 20, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Trisodium Ethylenediamine Disuccinate, Ethoxydiglycol, Sodium Benzoate, Caprylyl Glycol, Ethylhexylglycerin, Phenoxyethanol, Chlorphenesin Dimethicone Tapioca Starch Dimethicone Crosspolymer Retinol Retinyl Propionate Niacinamide Palmitoyl Pentapeptide-4 Polyacrylamide C13-14 Isoparaffin DMDM Hydantoin 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 These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. Polysorbate 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. 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!