La Roche-Posay Retinol B3 Serum Versus Vichy Liftactiv Peptide-C

La Roche-Posay Retinol B3 Serum Versus Vichy Liftactiv Peptide-C Detailed comparison of La Roche-Posay Retinol B3 Serum versus Vichy Liftactiv Peptide-C. This anti-aging serum is formulated around Niacinamide and Retinol to soften the look of wrinkles and fade the look of dark spots. This anti-aging moisturizer is formulated around Adenosine and Ascorbyl Glucoside to soften the look of wrinkles and brighten dull-looking skin. Water Glycerin Cyclohexasiloxane Alcohol Denat. Pentylene Glycol Niacinamide Dimethicone Glycine Soja Oil PPG-6-Decyltetradeceth-30 Sodium Hyaluronate Retinol Adenosine Ammonium Polyacryloyldimethyl Taurate Caprylyl Glycol Citric Acid Trisodium Ethylenediamine Disuccinate Xanthan Gum Polysilicone-11 Retinyl Palmitate Tocopherol Phenoxyethanol Parfum Water, Glycerin, Cyclohexasiloxane, Alcohol Denat., Pentylene Glycol, Niacinamide, Dimethicone, Glycine Soja Oil, PPG-6-Decyltetradeceth-30, Sodium Hyaluronate, Retinol, Adenosine, Ammonium Polyacryloyldimethyl Taurate, Caprylyl Glycol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xanthan Gum, Polysilicone-11, Retinyl Palmitate, Tocopherol, Phenoxyethanol, Parfum Isohexadecane Silica Hydroxyethylpiperazine Ethane Sulfonic Acid Propanediol Synthetic Wax PEG-10 Dimethicone Eperua Falcata Bark Extract PEG-30 Dipolyhydroxystearate Stearyl Alcohol Sorbitan Oleate Dimethicone/PEG-10/15 Crosspolymer Dimethicone/Polyglycerin-3 Crosspolymer Ceteareth-6 Sodium Acrylates Copolymer Sodium Citrate Sodium Hydroxide Sodium Phytate Cyclodextrin Ascorbyl Glucoside Nylon-12 Isopropyl Alcohol Propylene Carbonate Dipropylene Glycol Caprylic/Capric Triglyceride Acetyl Tetrapeptide-9 Synthetic Fluorphlogopite Disteardimonium Hectorite Dextrin Pisum Sativum Extract CI 15985 CI 77891 Water, Glycerin, Dimethicone, Isohexadecane, Alcohol Denat., Silica, Hydroxyethylpiperazine Ethane Sulfonic Acid, Propanediol, Synthetic Wax, PEG-10 Dimethicone, Eperua Falcata Bark Extract, PEG-30 Dipolyhydroxystearate, Stearyl Alcohol, Sorbitan Oleate, Dimethicone/PEG-10/15 Crosspolymer, Dimethicone/Polyglycerin-3 Crosspolymer, Ceteareth-6, Sodium Acrylates Copolymer, Sodium Citrate, Sodium Hydroxide, Sodium Phytate, Cyclodextrin, Adenosine, Ascorbyl Glucoside, Nylon-12, Isopropyl Alcohol, Propylene Carbonate, Dipropylene Glycol, Caprylic/Capric Triglyceride, Caprylyl Glycol, Acetyl Tetrapeptide-9, Synthetic Fluorphlogopite, Disteardimonium Hectorite, Dextrin, Pisum Sativum Extract, Tocopherol, Phenoxyethanol, CI 15985, CI 77891, Parfum 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. Alcohol Denat. is an alcohol with a denaturant property. It is created by mixing ethanol with other additives. The "denat" part just means "denatured"; common denaturants include Denatonium Benzoate, t-butyl alcohol, and Diethyl Phthalate. This step makes the alcohol undrinkable (and lets brand skip taxes related to beverage alcohol). This ingredient gets a bad rep because it is irritating and drying due to its astringent property. Astringents draw out natural oils in tissue to constrict pores and dry out your skin. However, alcohol denat. is not all that bad. Due to its low molecular weight, alcohol denat. tends to evaporate quickly. One study on pig skin found half of applied alcohol evaporated in 10 seconds and less than 3% stayed on skin. This also helps other ingredients become better absorbed upon application. Studies are conflicted about whether this ingredient causes skin dehydration. One study from 2005 found adding emollients to propanol-based sanitizer decreased skin dryness and irritation. Another study found irritation only occurs if your skin is already damaged. Small amounts of alcohol are generally tolerated by oily skin or people who live in humid environments. The rule of thumb is this ingredient will probably not affect your skin much if it is near the end of an ingredients list. One thing to note: People with ALDH2 (aldehyde dehydrogenase 2) deficiency may experience skin irritation fr