Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Mary & May 6 Peptide Complex Serum Versus Paula's Choice Pro-Collagen Multi-Peptide Booster

Mary & May 6 Peptide Complex Serum Versus Paula's Choice Pro-Collagen Multi-Peptide Booster Detailed comparison of Mary & May 6 Peptide Complex Serum versus Paula's Choice Pro-Collagen Multi-Peptide Booster. This anti-aging serum is formulated around Copper Tr

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

Mary & May 6 Peptide Complex Serum Versus Paula's Choice Pro-Collagen Multi-Peptide Booster Detailed comparison of Mary & May 6 Peptide Complex Serum versus Paula's Choice Pro-Collagen Multi-Peptide Booster. This anti-aging serum is formulated around Copper Tripeptide-1 and Palmitoyl Pentapeptide-4 to soften the look of wrinkles and refine skin texture. Water Glycereth-26 1,2-Hexanediol Butylene Glycol Glycerin Arginine Carbomer Ethylhexylglycerin Polyglyceryl-10 Laurate Adenosine Caprylyl Glycol Copper Tripeptide-1 Hexapeptide-11 Hexapeptide-9 Palmitoyl Pentapeptide-4 Palmitoyl Tripeptide-1 Tripeptide-1 Water, Glycereth-26, 1,2-Hexanediol, Butylene Glycol, Glycerin, Arginine, Carbomer, Ethylhexylglycerin, Polyglyceryl-10 Laurate, Adenosine, Caprylyl Glycol, Copper Tripeptide-1, Hexapeptide-11, Hexapeptide-9, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Tripeptide-1 Pentylene Glycol Hydrolyzed Yeast Extract Pyrus Malus Fruit Extract Dimethicone Propanediol Ceramide AP Glyceryl Glucoside Palmitoyl Tetrapeptide-72 Amide Sh-Polypeptide-121 Tridecapeptide-1 Polyglucuronic Acid Sodium Hyaluronate C9-12 Alkane Ammonium Polyacryloyldimethyl Taurate Polygonum Bistorta Root Extract Bacillus Ferment Lecithin Sodium Phytate Coco-Caprylate/Caprate Hexylene Glycol Cetyl Hydroxyethylcellulose Xanthan Gum Magnesium Chloride Potassium Sorbate Sodium Benzoate Water, Glycerin, Pentylene Glycol, Hydrolyzed Yeast Extract, Pyrus Malus Fruit Extract, Dimethicone, Propanediol, Ceramide AP, 1,2-Hexanediol, Glyceryl Glucoside, Palmitoyl Tetrapeptide-72 Amide, Sh-Polypeptide-121, Tridecapeptide-1, Polyglucuronic Acid, Sodium Hyaluronate, C9-12 Alkane, Ammonium Polyacryloyldimethyl Taurate, Polygonum Bistorta Root Extract, Bacillus Ferment, Lecithin, Sodium Phytate, Coco-Caprylate/Caprate, Hexylene Glycol, Cetyl Hydroxyethylcellulose, Xanthan Gum, Ethylhexylglycerin, Caprylyl Glycol, Magnesium Chloride, Potassium Sorbate, Sodium Benzoate 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. 1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. It is a: Humectant, drawing moisture into the skin Emollient, helping to soften skin Solvent, dispersing and stabilizing formulas Preservative booster, enhancing the antimicrobial activity of other preservatives 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). 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. 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!