Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Drunk Elephant Protini Powerpeptide Resurfacing Serum Versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum

Drunk Elephant Protini Powerpeptide Resurfacing Serum Versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum Detailed comparison of Drunk Elephant Protini Powerpeptide Resurfacing Serum versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum. This smoothing

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Drunk Elephant Protini Powerpeptide Resurfacing Serum Versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum Detailed comparison of Drunk Elephant Protini Powerpeptide Resurfacing Serum versus Peter Thomas Roth Peptide 21 Wrinkle Resist Serum. This smoothing serum is formulated around Lactic Acid and Sh-Oligopeptide-1 to refine skin texture and soften the look of wrinkles. This anti-aging serum is formulated around Tripeptide-10 Citrulline and Acetyl Octapeptide-3 to soften the look of wrinkles. Water Glycerin Lactic Acid Dicaprylyl Carbonate Squalane Sodium Hydroxide Glycine Max Seed Extract Sclerocarya Birrea Seed Oil Camellia Sinensis Seed Oil Sodium PCA Caprylic/Capric Triglyceride Borago Officinalis Seed Oil Tremella Fuciformis Polysaccharide Tocotrienols Sh-Oligopeptide-1 Sh-Oligopeptide-2 Sh-Polypeptide-1 Sh-Polypeptide-9 Sh-Polypeptide-11 Copper Palmitoyl Heptapeptide-14 Heptapeptide-15 Palmitate Palmitoyl Tetrapeptide-7 Palmitoyl Tripeptide-1 Palmitoyl Tripeptide-38 Palmitoyl Hexapeptide-12 Tripeptide-1 Pyrus Malus Fruit Extract Propanediol Sodium Hyaluronate Panthenol Sodium Hyaluronate Crosspolymer Sodium Lactate PCA Alanine Arginine Glycine Histidine Isoleucine Phenylalanine Proline Serine Threonine Valine Adenosine Nymphaea Alba Root Extract Bacillus/Folic Acid Ferment Filtrate Extract Symphytum Officinale Callus Culture Extract Dextran Oryza Sativa Bran Oil Linoleic Acid Linolenic Acid Butylene Glycol Acetyl Glutamine Coconut Alkanes Coco-Caprylate/Caprate Pentylene Glycol Isomalt Lecithin Xanthan Gum Aspartic Acid Phytosphingosine Phospholipids Glycine Soja Sterols Tocopherol Citric Acid Lactic Acid/Glycolic Acid Copolymer Polyvinyl Alcohol Phenoxyethanol Sodium Benzoate Hydroxypropyl Cyclodextrin Polysorbate 20 Caprylyl Glycol Phenylpropanol Chlorphenesin Carbomer Glyceryl Caprylate Ethylhexylglycerin Water, Glycerin, Lactic Acid, Dicaprylyl Carbonate, Squalane, Sodium Hydroxide, Glycine Max Seed Extract, Sclerocarya Birrea Seed Oil, Camellia Sinensis Seed Oil, Sodium PCA, Caprylic/Capric Triglyceride, Borago Officinalis Seed Oil, Tremella Fuciformis Polysaccharide, Tocotrienols, Sh-Oligopeptide-1, Sh-Oligopeptide-2, Sh-Polypeptide-1, Sh-Polypeptide-9, Sh-Polypeptide-11, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Palmitoyl Tripeptide-38, Palmitoyl Hexapeptide-12, Tripeptide-1, Pyrus Malus Fruit Extract, Propanediol, Sodium Hyaluronate, Panthenol, Sodium Hyaluronate Crosspolymer, Sodium Lactate, PCA, Alanine, Arginine, Glycine, Histidine, Isoleucine, Phenylalanine, Proline, Serine, Threonine, Valine, Adenosine, Nymphaea Alba Root Extract, Bacillus/Folic Acid Ferment Filtrate Extract, Symphytum Officinale Callus Culture Extract, Dextran, Oryza Sativa Bran Oil, Linoleic Acid, Linolenic Acid, Butylene Glycol, Acetyl Glutamine, Coconut Alkanes, Coco-Caprylate/Caprate, Pentylene Glycol, Isomalt, Lecithin, Xanthan Gum, Aspartic Acid, Phytosphingosine, Phospholipids, Glycine Soja Sterols, Tocopherol, Citric Acid, Lactic Acid/Glycolic Acid Copolymer, Polyvinyl Alcohol, Phenoxyethanol, Sodium Benzoate, Hydroxypropyl Cyclodextrin, Polysorbate 20, Caprylyl Glycol, Phenylpropanol, Chlorphenesin, Carbomer, Glyceryl Caprylate, Ethylhexylglycerin Rosa Centifolia Flower Water Isopropyl Myristate Mannitol Natto Gum Tripeptide-10 Citrulline Acetyl Octapeptide-3 Acetyl Tetrapeptide-11 Acetyl Hexapeptide-8 Acetyl Hexapeptide-1 Palmitoyl Oligopeptide Acetyl Tetrapeptide-9 Acet 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. 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). Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture. Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%. It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier. Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%. A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions. Dextran is a sugar (polysaccharide) with skin hydrating properties. Fun fact: Louis Pasteur first discovered this ingredient as a microbial product in wine. 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. Lecithin is a term for a group of substances found in the cell membranes of plants, animals, and humans. They are made up of phospholipids. Thanks to its amphiphilic structure (water-loving head and oil-loving tail), it is a true multitasker: It plays well with most ingredients and is typically used at 0.1-1%. However, concentrations up to 50%