Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Cetaphil Healthy Renew Purified Peptides Face Serum Versus Cetaphil Deep Hydration 48 Hour Activation Serum

Cetaphil Healthy Renew Purified Peptides Face Serum Versus Cetaphil Deep Hydration 48 Hour Activation Serum Detailed comparison of Cetaphil Healthy Renew Purified Peptides Face Serum versus Cetaphil Deep Hydration 48 Hour Activation Serum. This anti-aging seru

This source-based comparison does not add ratings or recommend a winner.

Cetaphil Healthy Renew Purified Peptides Face Serum Versus Cetaphil Deep Hydration 48 Hour Activation Serum Detailed comparison of Cetaphil Healthy Renew Purified Peptides Face Serum versus Cetaphil Deep Hydration 48 Hour Activation Serum. This anti-aging serum is formulated around Panthenol and Niacinamide to soften the look of wrinkles and strengthen the skin barrier. This hydrating serum is formulated around Hydrolyzed Hyaluronic Acid and Panthenol to hydrate skin and strengthen the skin barrier. No concerns Water Butylene Glycol Glycerin Panthenol 1,2-Hexanediol Niacinamide Cetyl Ethylhexanoate Hydrogenated Polydecene Acrylates/C10-30 Alkyl Acrylate Crosspolymer Tromethamine Oryza Sativa Lees Extract Leontopodium Alpinum Extract Calcium Alginate Propanediol Hydrolyzed Soy Flour Ethylhexylglycerin Agar Adenosine Trisodium Ethylenediamine Disuccinate Synthetic Fluorphlogopite Caprylyl Glycol Iron Oxides Citric Acid Sodium Benzoate Potassium Sorbate Buddleja Davidii Extract Thymus Vulgaris Extract Tocopherol Water, Butylene Glycol, Glycerin, Panthenol, 1,2-Hexanediol, Niacinamide, Cetyl Ethylhexanoate, Hydrogenated Polydecene, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tromethamine, Oryza Sativa Lees Extract, Leontopodium Alpinum Extract, Calcium Alginate, Propanediol, Hydrolyzed Soy Flour, Ethylhexylglycerin, Agar, Adenosine, Trisodium Ethylenediamine Disuccinate, Synthetic Fluorphlogopite, Caprylyl Glycol, Iron Oxides, Citric Acid, Sodium Benzoate, Potassium Sorbate, Buddleja Davidii Extract, Thymus Vulgaris Extract, Tocopherol Sorbitol Coco-Caprylate/Caprate Glyceryl Citrate/Lactate/Linoleate/Oleate Helianthus Annuus Seed Oil Octyldodecanol Hexyldecanol Hexyldecyl Laurate Distarch Phosphate Anhydroxylitol Butyrospermum Parkii Oil Dicaprylyl Carbonate Disodium Cocoyl Glutamate Globularia Alypum Leaf Extract Hydrolyzed Hyaluronic Acid Pantolactone Phenoxyethanol Propylene Glycol Sodium Hydroxide Sodium Polyacrylate Tocopheryl Acetate Xylitol Xylitylglucoside Water, Glycerin, Sorbitol, Coco-Caprylate/Caprate, Glyceryl Citrate/Lactate/Linoleate/Oleate, Helianthus Annuus Seed Oil, Octyldodecanol, Hexyldecanol, Hexyldecyl Laurate, Distarch Phosphate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Anhydroxylitol, Butyrospermum Parkii Oil, Citric Acid, Dicaprylyl Carbonate, Disodium Cocoyl Glutamate, Globularia Alypum Leaf Extract, Hydrolyzed Hyaluronic Acid, Panthenol, Pantolactone, Phenoxyethanol, Propylene Glycol, Sodium Benzoate, Sodium Hydroxide, Sodium Polyacrylate, Tocopherol, Tocopheryl Acetate, Xylitol, Xylitylglucoside 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. Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken, emulsify, and improve the texture of products. As an emulsifier, it helps stabilize oil-in-water emulsions to give products an elegant feel when applied. It can also form a thin protective film on skin. One study found that a formula using this polymer helped slow down how quickly other ingredients (like DEET) were absorbed through skin. A 2024 study of over 1,300 patients confirmed that sensitization to this ingredient is rare. It is also non-mutagenic and has a clean track record. 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. 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 hu