Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Niod Copper Amino Isolate Serum 3 1:1 (CAIS3) Versus Minimalist Copper Peptide + PDRN 1.25% Face Serum

Niod Copper Amino Isolate Serum 3 1:1 (CAIS3) Versus Minimalist Copper Peptide + PDRN 1.25% Face Serum Detailed comparison of Niod Copper Amino Isolate Serum 3 1:1 (CAIS3) versus Minimalist Copper Peptide + PDRN 1.25% Face Serum. This anti-aging serum is formu

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Niod Copper Amino Isolate Serum 3 1:1 (CAIS3) Versus Minimalist Copper Peptide + PDRN 1.25% Face Serum Detailed comparison of Niod Copper Amino Isolate Serum 3 1:1 (CAIS3) versus Minimalist Copper Peptide + PDRN 1.25% Face Serum. This anti-aging serum is formulated around Tripeptide-29 and Tripeptide-1 to soften the look of wrinkles. This anti-aging serum is formulated around Niacinamide and Sodium DNA to soften the look of wrinkles and strengthen the skin barrier. 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 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 Niacinamide Sodium Hyaluronate Sodium DNA Hydrolyzed Sodium Hyaluronate Water, Niacinamide, Dimethyl Isosorbide, Ethoxydiglycol, Bis(Tripeptide-1) Copper Acetate, Propanediol, Sodium Hyaluronate, Sodium DNA, Hydrolyzed Sodium Hyaluronate, Pentylene Glycol, Phenoxyethanol, Ethylhexylglycerin 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. Bis(Tripeptide-1) Copper Acetate is a peptide. Dimethyl Isosorbide (often shortened to DMI) is a sugar-derived solvent made from sorbitol. It's used to dissolve tricky ingredients and help them mix smoothly into a formula. Many actives sit as gritty crystals when undissolved, so DMI swoops in to full dissolve them. This helps improve texture, stability, and how evenly an active is distributed. It does have a penetration-enhancing reputation that is a bit more nuanced than marketing suggests; a cell study on human skin found that 10% DMI didn't significantly boost the permeation of Hydroquinone, Salicylic Acid, or Octadecenedioic Acid compared to controls (though it did improve their solubility in the formula itself). Typical usage concentrations usually range from 1-10% depending on the formula's needs; this ingredient is also well tolerated at these levels. 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. 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. Pentylene Glycol (1,2-pentanediol) is a multitasking little diol with three main roles in a formula: Research on