Ingredient or product comparison
Paula's Choice CellularYouth Longevity Serum Versus Medik8 Liquid Peptides Advanced MP
Paula's Choice CellularYouth Longevity Serum Versus Medik8 Liquid Peptides Advanced MP Detailed comparison of Paula's Choice CellularYouth Longevity Serum versus Medik8 Liquid Peptides Advanced MP. This hydrating serum is formulated around Simmondsia Chinensis
This source-based comparison does not add ratings or recommend a winner.
Paula's Choice CellularYouth Longevity Serum Versus Medik8 Liquid Peptides Advanced MP Detailed comparison of Paula's Choice CellularYouth Longevity Serum versus Medik8 Liquid Peptides Advanced MP. This hydrating serum is formulated around Simmondsia Chinensis Seed Oil and Bacillus Ferment to hydrate skin and strengthen the skin barrier. This anti-aging serum is formulated around Palmitoyl Tripeptide-38 and Palmitoyl Tripeptide-5 to soften the look of wrinkles and refine skin texture. Water Propanediol Glycerin Triheptanoin Methyl Gluceth-20 Simmondsia Chinensis Seed Oil Tridecyl Trimellitate Maltodextrin 1,2-Hexanediol Dimethicone Taurine Bacillus Ferment Ganoderma Lucidum Stem Extract Helianthus Annuus Sprout Extract Lycium Barbarum Fruit Extract Acetyl Tetrapeptide-2 Isomalt Coco-Caprylate/Caprate Hydroxyacetophenone Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer C9-12 Alkane Dilinoleic Acid/Butanediol Copolymer Glyceryl Behenate Polyglyceryl-6 Octastearate Sodium Phytate Acrylates/C10-30 Alkyl Acrylate Crosspolymer Potassium Chloride Acacia Senegal Gum Xanthan Gum Polysorbate 60 Sorbitan Isostearate Synthetic Fluorphlogopite Caprylyl Glycol Citric Acid Castor Oil/Ipdi Copolymer Lecithin Cyanocobalamin Tin Oxide CI 77491 CI 77891 Water, Propanediol, Glycerin, Triheptanoin, Methyl Gluceth-20, Simmondsia Chinensis Seed Oil, Tridecyl Trimellitate, Maltodextrin, 1,2-Hexanediol, Dimethicone, Taurine, Bacillus Ferment, Ganoderma Lucidum Stem Extract, Helianthus Annuus Sprout Extract, Lycium Barbarum Fruit Extract, Acetyl Tetrapeptide-2, Isomalt, Coco-Caprylate/Caprate, Hydroxyacetophenone, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, C9-12 Alkane, Dilinoleic Acid/Butanediol Copolymer, Glyceryl Behenate, Polyglyceryl-6 Octastearate, Sodium Phytate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Potassium Chloride, Acacia Senegal Gum, Xanthan Gum, Polysorbate 60, Sorbitan Isostearate, Synthetic Fluorphlogopite, Caprylyl Glycol, Citric Acid, Castor Oil/Ipdi Copolymer, Lecithin, Cyanocobalamin, Tin Oxide, CI 77491, CI 77891 Dimethyl Isosorbide Butylene Glycol Undecane Arginine Inulin Microcrystalline Cellulose Ceteareth-20 Tridecane Tocopherol Sodium Hyaluronate Palmitoyl Tripeptide-38 Panthenol Caprylic/Capric Triglyceride Palmitoyl Tripeptide-5 Polyacrylate Crosspolymer-6 Palmitoyl Tripeptide-1 Pullulan Tetrapeptide-21 Palmitoyl Tetrapeptide-10 Palmitoyl Tetrapeptide-7 Ammonium Polyacryloyldimethyl Taurate Glyceryl Linoleate Acetyl Hexapeptide-8 Pentapeptide-18 Oligopeptide-1 Arginine/Lysine Polypeptide Sucrose Palmitate Cetyl Palmitate Phenoxyethanol Ethylhexylglycerin Carbomer Copper Palmitoyl Heptapeptide-14 Heptapeptide-15 Palmitate Benzotriazolyl Dodecyl P-Cresol Polysorbate 80 Sorbitan Stearate Polysorbate 20 Carnosine Sodium Metabisulfite Dunaliella Salina Extract Helianthus Annuus Seed Oil Hydroxypropyl Cyclodextrin Dimethicone/Vinyl Dimethicone Crosspolymer Sodium Benzoate Hydrogenated Lecithin Pantolactone Disodium EDTA T-Butyl Alcohol Potassium Sorbate Glyceryl Caprylate Lactic Acid/Glycolic Acid Copolymer Polyvinyl Alcohol Phenylpropanol Water, Glycerin, Dimethicone, Dimethyl Isosorbide, Butylene Glycol, Undecane, Arginine, Inulin, Microcrystalline Cellulose, Ceteareth-20, Tridecane, Tocopherol, Hydroxyacetophenone, Sodium Hyaluronate, Palmitoyl Tripeptide-38, Panthenol, Caprylic/Capric Triglyceride, Palmitoyl Tripeptide-5, Polyacrylate Crosspolymer-6, Palmitoyl Tripeptide-1, Pullulan 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. 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). Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes. Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath. However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products. Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH. In skincare formulas, citric acid can: While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants. Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations. Rosacea skin has a lower threshold for acids generally, with 62.5% of rosacea subjects in one study reacting to lactic acid in a sting test. This is why we mark citric acid as a potential rosacea trigger. However, this ingredient shows up as a pH adjuster or chelator at roughly 0.1-1% in many products. These low levels are unlikely to be an issue for rosacea skin and becomes a potential trigger at exfoliating concentrations (20%). Because everybody's skin is unique, we recommend a patch test if you are unsure. Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane. What it does: Dimethicone comes in different viscosities: Depending on the viscosity, dimethicone has different properties. Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity. This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient. Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy. 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 seba