Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Niod Non-Acid Acid Precursor 15% (NAAP) Versus Niod Copper Amino Isolate Serum 3 1:1 (CAIS3)

Niod Non-Acid Acid Precursor 15% (NAAP) Versus Niod Copper Amino Isolate Serum 3 1:1 (CAIS3) Detailed comparison of Niod Non-Acid Acid Precursor 15% (NAAP) versus Niod Copper Amino Isolate Serum 3 1:1 (CAIS3). This barrier-repair exfoliator is formulated aroun

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Niod Non-Acid Acid Precursor 15% (NAAP) Versus Niod Copper Amino Isolate Serum 3 1:1 (CAIS3) Detailed comparison of Niod Non-Acid Acid Precursor 15% (NAAP) versus Niod Copper Amino Isolate Serum 3 1:1 (CAIS3). This barrier-repair exfoliator is formulated around Lactococcus Ferment Lysate to strengthen the skin barrier. This anti-aging serum is formulated around Tripeptide-29 and Tripeptide-1 to soften the look of wrinkles. Water Lactococcus Ferment Lysate Glycerin Ethyl Linoleate Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Hexanoyl Dipeptide-3 Norleucine Acetate Myristoyl Nonapeptide-3 Yeast Extract Soy Amino Acids Bisabolol Pseudoalteromonas Exopolysaccharides Lecithin Sorbitan Isostearate Isohexadecane Polysorbate 60 Polyacrylate Crosspolymer-6 Trisodium Ethylenediamine Disuccinate Sodium Salicylate Citric Acid Sodium Chloride Potassium Sorbate Sodium Benzoate Pentylene Glycol Ethoxydiglycol Phenoxyethanol Chlorphenesin Water, Lactococcus Ferment Lysate, Glycerin, Ethyl Linoleate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hexanoyl Dipeptide-3 Norleucine Acetate, Myristoyl Nonapeptide-3, Yeast Extract, Soy Amino Acids, Bisabolol, Pseudoalteromonas Exopolysaccharides, Lecithin, Sorbitan Isostearate, Isohexadecane, Polysorbate 60, Polyacrylate Crosspolymer-6, Trisodium Ethylenediamine Disuccinate, Sodium Salicylate, Citric Acid, Sodium Chloride, Potassium Sorbate, Sodium Benzoate, Pentylene Glycol, Ethoxydiglycol, Phenoxyethanol, Chlorphenesin Tripeptide-29 Bis(Tripeptide-1) Copper Acetate Tripeptide-1 Trifluoroacetyl Tripeptide-2 Acetyl Tetrapeptide-2 Sodium Hyaluronate Crosspolymer Glycogen Propanediol Dextran Dimethyl Isosorbide Isoceteth-20 Leuconostoc/Radish Root Ferment Filtrate Caprylyl Glycol Ethylhexylglycerin Water, Glycerin, Tripeptide-29, Bis(Tripeptide-1) Copper Acetate, Tripeptide-1, Myristoyl Nonapeptide-3, Trifluoroacetyl Tripeptide-2, Acetyl Tetrapeptide-2, Sodium Hyaluronate Crosspolymer, Glycogen, Propanediol, Pentylene Glycol, Dextran, Dimethyl Isosorbide, Ethoxydiglycol, Isoceteth-20, Leuconostoc/Radish Root Ferment Filtrate, Caprylyl Glycol, Ethylhexylglycerin, Phenoxyethanol, Chlorphenesin These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Chlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol. Chlorphenesin is a biocide. This means it is able to help fight the microorganisms on our skin. It is also able to fight odor-releasing bacteria. Chlorphenesin is soluble in both water and glycerin. Studies show Chlorphenesin is easily absorbed by our skin. You should speak with a skincare professional if you have concerns about using Chlorphenesin. Ethoxydiglycol (aka Diethylene Glycol Monoethyl Ether) is one of the cosmetic world's quiet problem solvers. In a formula, it is a solvent that dissolves tricky ingredients that don't want to mix in and helps spread ingredients evenly across your skin without leaving a greasy or sticky feeling This makes it great for hard-to-dissolve actives like vitamin C, benzoyl peroxide, and self-tanner DHA. It also has mild humectant and penetration enhancer abilities so it can help some actives absorb a little deeper. The penetration boost is backed by lab research: studies using human skin samples found it improved how well an active dissolves into the upper layer of skin rather than tearing down your skin barrier. Reviews of its mechanism also describe it interacting gently with the lipids and water in your outermost layer of skin. Just know this penetration-enhancing effect is not universal. It helps a lot in some formulas and did very little in others (so the benefit really depends on the specific product). Safety-wise, the evidence is reassuring. The Cosmetic Ingredient Review Expert Panel reviewed it and concluded it's safe for use in cosmetics and recognized it as non-irritating, non-sensitizing, and non-comedogenic in skincare. Typical leave-on skincare usage lands around 1-10%. The EU has sets caps of 2.6% in non-spray products, 10% in rinse-offs, 7% in oxidative hair dye, and 5% in non-oxidative hair dye. 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 ingredien