Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Dr. Reju-All Advanced PDRN Copper Peptide Serum Versus COSRX The Blue Peptide Bakuchiol Plump Glow Serum

Dr. Reju-All Advanced PDRN Copper Peptide Serum Versus COSRX The Blue Peptide Bakuchiol Plump Glow Serum Detailed comparison of Dr. Reju-All Advanced PDRN Copper Peptide Serum versus COSRX The Blue Peptide Bakuchiol Plump Glow Serum. This anti-aging serum is f

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Dr. Reju-All Advanced PDRN Copper Peptide Serum Versus COSRX The Blue Peptide Bakuchiol Plump Glow Serum Detailed comparison of Dr. Reju-All Advanced PDRN Copper Peptide Serum versus COSRX The Blue Peptide Bakuchiol Plump Glow Serum. This anti-aging serum is formulated around Niacinamide and Sodium DNA to soften the look of wrinkles and strengthen the skin barrier. This anti-aging serum is formulated around Niacinamide and Copper Tripeptide-1 to soften the look of wrinkles and refine skin texture. Water Butylene Glycol Glycerin Dipropylene Glycol 1,2-Hexanediol Isopentyldiol Niacinamide Caprylic/Capric Triglyceride Sodium DNA Copper Tripeptide-1 Acetyl Octapeptide-3 Acetyl Tetrapeptide-5 Acetyl Tetrapeptide-9 Palmitoyl Hexapeptide-12 Palmitoyl Tripeptide-5 Sodium Hyaluronate Hydrolyzed Collagen Chamaecyparis Obtusa Oil Anthemis Nobilis Flower Oil Guaiazulene Panthenol Sorbitol C12-14 Alketh-12 Sodium Polyacryloyldimethyl Taurate Acrylates/C10-30 Alkyl Acrylate Crosspolymer Propanediol Tromethamine Ethylhexylglycerin Allantoin Sodium PCA Adenosine Gellan Gum Glyceryl Acrylate/Acrylic Acid Copolymer Agar Sodium Phytate Beta-Glucan Tocopherol Xanthan Gum Water, Butylene Glycol, Glycerin, Dipropylene Glycol, 1,2-Hexanediol, Isopentyldiol, Niacinamide, Caprylic/Capric Triglyceride, Sodium DNA, Copper Tripeptide-1, Acetyl Octapeptide-3, Acetyl Tetrapeptide-5, Acetyl Tetrapeptide-9, Palmitoyl Hexapeptide-12, Palmitoyl Tripeptide-5, Sodium Hyaluronate, Hydrolyzed Collagen, Chamaecyparis Obtusa Oil, Anthemis Nobilis Flower Oil, Guaiazulene, Panthenol, Sorbitol, C12-14 Alketh-12, Sodium Polyacryloyldimethyl Taurate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Propanediol, Tromethamine, Ethylhexylglycerin, Allantoin, Sodium PCA, Adenosine, Gellan Gum, Glyceryl Acrylate/Acrylic Acid Copolymer, Agar, Sodium Phytate, Beta-Glucan, Tocopherol, Xanthan Gum Betaine Diethoxyethyl Succinate Ammonium Acryloyldimethyltaurate/Vp Copolymer Dimethicone Polyglyceryl-6 Caprylate Polyglyceryl-4 Caprate Bakuchiol Hydrogenated Lecithin Alcohol Sodium Methyl Stearoyl Taurate Hydroxypropyl Starch Phosphate Disodium EDTA Caprylyl Glycol Dipeptide Diaminobutyroyl Benzylamide Diacetate Acetyl Hexapeptide-1 Acetyl Heptapeptide-4 Inositol Acetyl Hexapeptide-8 Sodium Hydroxide Hyaluronic Acid Sodium Hyaluronate Crosspolymer Hydrolyzed Hyaluronic Acid Sodium Acetylated Hyaluronate Water, Butylene Glycol, Glycerin, Dipropylene Glycol, Niacinamide, 1,2-Hexanediol, Betaine, Diethoxyethyl Succinate, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Dimethicone, Copper Tripeptide-1, Polyglyceryl-6 Caprylate, Polyglyceryl-4 Caprate, Bakuchiol, Hydrogenated Lecithin, Alcohol, Sodium Methyl Stearoyl Taurate, Ethylhexylglycerin, Hydroxypropyl Starch Phosphate, Disodium EDTA, Adenosine, Caprylyl Glycol, Tocopherol, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Acetyl Hexapeptide-1, Acetyl Heptapeptide-4, Panthenol, Inositol, Acetyl Hexapeptide-8, Sodium Hydroxide, Propanediol, Beta-Glucan, Sodium Hyaluronate, Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Hydrolyzed Collagen, Hydrolyzed Hyaluronic Acid, Sodium Acetylated Hyaluronate, Acetyl Octapeptide-3 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 Acetyl Octapeptide-3 is a synthetic peptide also commonly known as SNAP-8. It is a lab-made peptide often marketed as a gentler, topical alternative to Botox. It works by mimicking part of a protein involved in muscle contractions, which may help relax facial tension and reduce the appearance of fine lines (mostly around the eyes and forehead). It’s considered a “next-gen” version of Argireline (Acetyl Hexapeptide-8), an older peptide with more research behind it that also supports collagen production. SNAP-8 showed slightly better results than Argireline in one small manufacturer-funded study, but there’s limited independent research. Plus, most tests use concentrations higher than what’s typically found in skincare products. This ingredient might offer a subtle smoothing effect but it won't don’t deliver the dramatic results of actual Botox injections. Think of it more like a supporting actor in your skincare lineup. 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. Beta-Glucan is a soluble polysaccharide (a chain of glucose sugars) sourced from the cells walls of oats, baker's yeast, mushrooms, and seaweed. It's a rare ingredient that pulls double-duty as a heavy-dut