Vichy Liftactiv Collagen Specialist 16 Serum Versus Mary & May 6 Peptide Complex Serum

Vichy Liftactiv Collagen Specialist 16 Serum Versus Mary & May 6 Peptide Complex Serum Detailed comparison of Vichy Liftactiv Collagen Specialist 16 Serum versus Mary & May 6 Peptide Complex Serum. This anti-aging serum is formulated around Niacinamide and Palmitoyl Tetrapeptide-7 to soften the look of wrinkles and refine skin texture. 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 Glycerin Rhamnose Alcohol Denat. Niacinamide Dimethicone Hydroxyethylpiperazine Ethane Sulfonic Acid Adenosine Citrol Grifola Frondosa Extract Hydroxyacetophenone Palmitoyl Tetrapeptide-7 Palmitoyl Tripeptide-1 Sh-Polypeptide-69 Sodium Hyaluronate Tetrasodium Glutamate Diacetate Trisodium Ethylenediamine Disuccinate Silica Ammonium Polyacryloyldimethyl Taurate Butylene Glycol Caprylyl Glycol Carbomer Maltodextrin PEG-20 Methyl Glucose Sesquistearate Polysorbate 20 Sodium Chloride Tocopherol Xanthan Gum Parfum Water, Glycerin, Rhamnose, Alcohol Denat., Niacinamide, Dimethicone, Hydroxyethylpiperazine Ethane Sulfonic Acid, Adenosine, Citrol, Grifola Frondosa Extract, Hydroxyacetophenone, Palmitoyl Tetrapeptide-7, Palmitoyl Tripeptide-1, Sh-Polypeptide-69, Sodium Hyaluronate, Tetrasodium Glutamate Diacetate, Trisodium Ethylenediamine Disuccinate, Silica, Ammonium Polyacryloyldimethyl Taurate, Butylene Glycol, Caprylyl Glycol, Carbomer, Maltodextrin, PEG-20 Methyl Glucose Sesquistearate, Polysorbate 20, Sodium Chloride, Tocopherol, Xanthan Gum, Parfum Glycereth-26 1,2-Hexanediol Arginine Ethylhexylglycerin Polyglyceryl-10 Laurate Copper Tripeptide-1 Hexapeptide-11 Hexapeptide-9 Palmitoyl Pentapeptide-4 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 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. 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. 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). Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture. Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%. It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier. Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%. A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant