Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

COSRX The Vitamin C 13 Serum Versus MediCube PDRN Pink Peptide Serum

COSRX The Vitamin C 13 Serum Versus MediCube PDRN Pink Peptide Serum Detailed comparison of COSRX The Vitamin C 13 Serum versus MediCube PDRN Pink Peptide Serum Salmon DNA. This brightening serum is formulated around Ascorbic Acid and 3-O-Ethyl Ascorbic Acid t

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COSRX The Vitamin C 13 Serum Versus MediCube PDRN Pink Peptide Serum Detailed comparison of COSRX The Vitamin C 13 Serum versus MediCube PDRN Pink Peptide Serum Salmon DNA. This brightening serum is formulated around Ascorbic Acid and 3-O-Ethyl Ascorbic Acid to brighten dull-looking skin and fade the look of dark spots. This anti-aging serum is formulated around Niacinamide and Sodium DNA to soften the look of wrinkles and refine skin texture. Water Ascorbic Acid 13% Butylene Glycol Dipropylene Glycol Tromethamine 3-O-Ethyl Ascorbic Acid Panthenol Acetyl Glucosamine Caffeine Sodium Hyaluronate Sodium Sulfite Disodium EDTA Glutathione Adenosine Gardenia Florida Fruit Extract Allantoin Dextrin Squalane Tocotrienols Tocopherol Elaeis Guineensis Oil Arginine Niacinamide Pentylene Glycol Glycyrrhiza Glabra Root Extract Water, Ascorbic Acid 13%, Butylene Glycol, Dipropylene Glycol, Tromethamine, 3-O-Ethyl Ascorbic Acid, Panthenol, Acetyl Glucosamine, Caffeine, Sodium Hyaluronate, Sodium Sulfite, Disodium EDTA, Glutathione, Adenosine, Gardenia Florida Fruit Extract, Allantoin, Dextrin, Squalane, Tocotrienols, Tocopherol, Elaeis Guineensis Oil, Arginine, Niacinamide, Pentylene Glycol, Glycyrrhiza Glabra Root Extract Glycerin Isopropyl Myristate Glycereth-26 1,2-Hexanediol Sodium DNA Polyglycerin-3 Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Polyisobutene Acrylates/C10-30 Alkyl Acrylate Crosspolymer Milt Extract Glyceryl Acrylate/Acrylic Acid Copolymer Pvm/Ma Copolymer Ethylhexylglycerin Caprylyl Glycol Parfum Melia Azadirachta Leaf Extract Caprylyl/Capryl Glucoside Sorbitan Oleate Melia Azadirachta Flower Extract Curcuma Longa Root Extract Cyanocobalamin Hydrolyzed Collagen Ubiquinone Ocimum Sanctum Leaf Extract Corallina Officinalis Extract Palmitoyl Pentapeptide-4 Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Copper Tripeptide-1 Acetyl Hexapeptide-8 Salmon Egg Extract Atelocollagen Water, Glycerin, Dipropylene Glycol, Isopropyl Myristate, Glycereth-26, Niacinamide, 1,2-Hexanediol, Sodium DNA, Butylene Glycol, Polyglycerin-3, Sodium Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Polyisobutene, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Milt Extract, Tromethamine, Glyceryl Acrylate/Acrylic Acid Copolymer, Pvm/Ma Copolymer, Ethylhexylglycerin, Caprylyl Glycol, Parfum, Melia Azadirachta Leaf Extract, Adenosine, Caprylyl/Capryl Glucoside, Sorbitan Oleate, Melia Azadirachta Flower Extract, Sodium Hyaluronate, Disodium EDTA, Curcuma Longa Root Extract, Cyanocobalamin, Hydrolyzed Collagen, Ubiquinone, Ocimum Sanctum Leaf Extract, Corallina Officinalis Extract, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Copper Tripeptide-1, Acetyl Hexapeptide-8, Salmon Egg Extract, Atelocollagen These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Adenosine is a purine nucleoside that your body already makes in every cell. In skincare, it acts mainly as a skin conditioning and anti-aging agent. The way it works is fairly well mapped out: Your skin has cells called fibroblasts that build collagen (the stuff that keeps skin firm and smooth). Adenosine basically flips a switch on these cells that tells them to get to work making more collagen and other proteins. These cells slow down on their own as skin ages, so Adenosine helps give them a little nudge to keep going. The clinical backing is pretty solid too. A blind, randomized, placebo-controlled trial of 126 women aged 45-65 tested a 0.1% cream twice daily and found real improvements in crow's feet and frown lines using a precise 3D skin-mapping technique; these changes showed up by week 3 and held at 2 months. A later study using Adenosine-loaded dissolving microneedle patches reported gains in wrinkle depth, dermal density, elasticity, and hydration. On concentrations, South Korea's Ministry of Food and Drug Safety has set 0.04% as the approved functional anti-wrinkle level. You'll typically see this ingredient used somewhere in the 0.04-0.1% range since it works at low doses. This ingredient has been found safe for cosmetics with the data showing no irritation or sensitization. Overall, this is a great ingredient for any anti-aging routine and has no photosensitizing effect, so it suits both AM and PM use. 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. Dipropylene Glycol is a synthetically created humectant, stabilizer, and solvent. This ingredient helps: Dipropylene glycol is technically an alcohol, but it belongs to the glycol family (often considered part of the ‘good’ alcohols). This means it is hydrating and gentle on skin unlike drying solvent alcohols like denatured alcohol. As a masking agent, Dipropylene Glycol can be used to cover the smell of other ingredients. However, it does not have a scent. Studies show Dipropylene Glycol is considered safe to use in skincare. Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air. This ingredient mainly works behind the scenes and helps with: On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it. One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also