Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Paula's Choice Peptide Booster Versus Etos Multi Peptide Serum

Paula's Choice Peptide Booster Versus Etos Multi Peptide Serum Detailed comparison of Paula's Choice Peptide Booster versus Etos Multi Peptide Serum. This anti-aging treatment is formulated around Tripeptide-1 and Palmitoyl Tripeptide-1 to soften the look of w

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Paula's Choice Peptide Booster Versus Etos Multi Peptide Serum Detailed comparison of Paula's Choice Peptide Booster versus Etos Multi Peptide Serum. This anti-aging treatment is formulated around Tripeptide-1 and Palmitoyl Tripeptide-1 to soften the look of wrinkles and refine skin texture. This anti-aging serum is formulated around Acetyl Tetrapeptide-9 to soften the look of wrinkles. Water Glycerin PEG-8 Dimethicone Tripeptide-1 Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Palmitoyl Hexapeptide-12 Myristoyl Hexapeptide-16 Myristoyl Pentapeptide-17 Hexanoyl Dipeptide-3 Norleucine Acetate Azelaoyl Bis-Dipeptide-10 Glycoproteins Phospholipids Adenosine Dipotassium Glycyrrhizate Arginine Valine Glycine Alanine Glutamic Acid Serine Threonine Yeast Extract Isoleucine Proline Histidine Phenylalanine PCA Phytic Acid Panax Ginseng Root Extract Sodium PCA Psidium Guajava Fruit Extract Euterpe Oleracea Fruit Extract Ahnfeltiopsis Concinna Extract Dextran Hydrolyzed Silk Lecithin Glyceryl Polymethacrylate C12-16 Pareth-9 Trideceth-12 Sodium Lactate Carbomer Aspartic Acid Polysorbate 20 Butylene Glycol Caprylyl Glycol PEG-8 C11-15 Pareth-7 Guar Hydroxypropyltrimonium Chloride Phytosteryl/Octyldodecyl Lauroyl Glutamate Ectoin Citrate Buffer Trimethylsiloxyamodimethicone Phenoxyethanol Sodium Hydroxide Ethylhexylglycerin Water, Glycerin, PEG-8 Dimethicone, Tripeptide-1, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Hexapeptide-12, Myristoyl Hexapeptide-16, Myristoyl Pentapeptide-17, Hexanoyl Dipeptide-3 Norleucine Acetate, Azelaoyl Bis-Dipeptide-10, Glycoproteins, Phospholipids, Adenosine, Dipotassium Glycyrrhizate, Arginine, Valine, Glycine, Alanine, Glutamic Acid, Serine, Threonine, Yeast Extract, Isoleucine, Proline, Histidine, Phenylalanine, PCA, Phytic Acid, Panax Ginseng Root Extract, Sodium PCA, Psidium Guajava Fruit Extract, Euterpe Oleracea Fruit Extract, Ahnfeltiopsis Concinna Extract, Dextran, Hydrolyzed Silk, Lecithin, Glyceryl Polymethacrylate, C12-16 Pareth-9, Trideceth-12, Sodium Lactate, Carbomer, Aspartic Acid, Polysorbate 20, Butylene Glycol, Caprylyl Glycol, PEG-8, C11-15 Pareth-7, Guar Hydroxypropyltrimonium Chloride, Phytosteryl/Octyldodecyl Lauroyl Glutamate, Ectoin, Citrate Buffer, Trimethylsiloxyamodimethicone, Phenoxyethanol, Sodium Hydroxide, Ethylhexylglycerin Helianthus Annuus Seed Oil Dicaprylyl Carbonate Mannitol Panthenol Cetearyl Olivate Sorbitan Olivate Xanthan Gum Gellan Gum Sclerotium Gum Tocopherol Sodium Hyaluronate Pantolactone Acetyl Tetrapeptide-11 Citric Acid Acetyl Tetrapeptide-9 Water, Glycerin, Helianthus Annuus Seed Oil, Dicaprylyl Carbonate, Mannitol, Panthenol, Phenoxyethanol, Cetearyl Olivate, Sorbitan Olivate, Xanthan Gum, Lecithin, Ethylhexylglycerin, Gellan Gum, Sclerotium Gum, Tocopherol, Sodium Hyaluronate, Pantolactone, Acetyl Tetrapeptide-11, Citric Acid, Acetyl Tetrapeptide-9, Hexanoyl Dipeptide-3 Norleucine Acetate These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that: The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure. Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations. 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. Hexanoyl Dipeptide-3 Norleucine Acetate is a peptide. 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% have been reported in moisturizers. Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!). It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome. On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive. Another perk of this ingredient is that it stays functional across a wide pH range (3-10). You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own. Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU. Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA conside