Vichy Liftactiv Collagen Specialist 16 Serum Versus Medik8 Liquid Peptides

Vichy Liftactiv Collagen Specialist 16 Serum Versus Medik8 Liquid Peptides Detailed comparison of Vichy Liftactiv Collagen Specialist 16 Serum versus Medik8 Liquid Peptides. 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 Carnosine and Palmitoyl Tripeptide-5 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 Inulin Panthenol Alpha-Glucan Oligosaccharide Carnosine Phenoxyethanol Hydroxypropyl Cyclodextrin Dunaliella Salina Extract Ethylhexylglycerin Citric Acid Palmitoyl Tripeptide-5 Sodium Benzoate Acetyl Hexapeptide-8 Tetrapeptide-21 Pentapeptide-18 Pantolactone Palmitoyl Tripeptide-38 Glyceryl Caprylate Lactic Acid/Glycolic Acid Copolymer Polyvinyl Alcohol Phenylpropanol Copper Palmitoyl Heptapeptide-14 Heptapeptide-15 Palmitate Potassium Sorbate Water, Glycerin, Butylene Glycol, Inulin, Sodium Hyaluronate, Panthenol, Alpha-Glucan Oligosaccharide, Carnosine, Carbomer, Polysorbate 20, Caprylyl Glycol, Phenoxyethanol, Hydroxypropyl Cyclodextrin, Dunaliella Salina Extract, Ethylhexylglycerin, Citric Acid, Palmitoyl Tripeptide-5, Sodium Benzoate, Acetyl Hexapeptide-8, Tetrapeptide-21, Pentapeptide-18, Palmitoyl Tripeptide-1, Pantolactone, Palmitoyl Tripeptide-38, Palmitoyl Tetrapeptide-7, Glyceryl Caprylate, Lactic Acid/Glycolic Acid Copolymer, Polyvinyl Alcohol, Phenylpropanol, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Potassium Sorbate, Xanthan Gum 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. 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 reactions. Glycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum. Topically, glycerin does several things at once: Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3. Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin. This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products. Just know very high concentrations (>40%) can feel tacky in low humidity. Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine. Palmitoyl Tetrapeptide-7 (formerly Palmitoyl Tetrapeptide-3) is a synthetic peptide. Its main job is to fight what researchers call "inflammaging". "Inflammaging" is the slow, low-grade chronic inflammation that quietly breaks down collagen as we age. This ingredient calms down a specific inflammation signal in your skin cells (called IL-6). When left unchecked, this signal triggers enzymes that break down collagen and elastin. Clinical testing showed statistically significant improvements in: Stud