Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

RNW DER. CONCENTRATE Ceramide Plus Versus Paula's Choice Resist Triple Active Total Repair Serum

RNW DER. CONCENTRATE Ceramide Plus Versus Paula's Choice Resist Triple Active Total Repair Serum Detailed comparison of RNW DER. CONCENTRATE Ceramide Plus versus Paula's Choice Resist Triple Active Total Repair Serum. This barrier-repair serum is formulated ar

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RNW DER. CONCENTRATE Ceramide Plus Versus Paula's Choice Resist Triple Active Total Repair Serum Detailed comparison of RNW DER. CONCENTRATE Ceramide Plus versus Paula's Choice Resist Triple Active Total Repair Serum. This barrier-repair serum is formulated around Niacinamide and Ceramide NP to strengthen the skin barrier and hydrate skin. This anti-aging serum is formulated around Niacinamide and Retinyl Propionate to soften the look of wrinkles and fade the look of dark spots. Water Dipropylene Glycol Glycerin Methylpropanediol Glycereth-26 1,2-Hexanediol Niacinamide Dimethicone/Vinyl Dimethicone Crosspolymer Betaine Cynara Scolymus Leaf Extract Avena Sativa Kernel Extract Ceramide NP Ceramide EOP Ceramide Ns Ceramide AP Ceramide As Acetyl Hexapeptide-8 Nonapeptide-1 Palmitoyl Tetrapeptide-7 Palmitoyl Pentapeptide-4 Palmitoyl Tripeptide-1 Hexapeptide-9 Tripeptide-1 Copper Tripeptide-1 Beta Vulgaris Root Extract Eclipta Prostrata Leaf Extract Algae Extract Persea Gratissima Oil Camellia Sinensis Leaf Water Hydrogenated Lecithin Cholesterol Squalane Tocopherol Hydrolyzed Hyaluronic Acid Polyquaternium-51 Glyceryl Stearate Beta-Glucan Adenosine Fructooligosaccharides Xanthan Gum Tromethamine Glyceryl Polymethacrylate Sucrose Distearate Acrylates/C10-30 Alkyl Acrylate Crosspolymer Butylene Glycol Silica Hydrolyzed Corn Starch Caprylyl Glycol Ethylhexylglycerin Water, Dipropylene Glycol, Glycerin, Methylpropanediol, Glycereth-26, 1,2-Hexanediol, Niacinamide, Dimethicone/Vinyl Dimethicone Crosspolymer, Betaine, Cynara Scolymus Leaf Extract, Avena Sativa Kernel Extract, Ceramide NP, Ceramide EOP, Ceramide Ns, Ceramide AP, Ceramide As, Acetyl Hexapeptide-8, Nonapeptide-1, Palmitoyl Tetrapeptide-7, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Hexapeptide-9, Tripeptide-1, Copper Tripeptide-1, Beta Vulgaris Root Extract, Eclipta Prostrata Leaf Extract, Algae Extract, Persea Gratissima Oil, Camellia Sinensis Leaf Water, Hydrogenated Lecithin, Cholesterol, Squalane, Tocopherol, Hydrolyzed Hyaluronic Acid, Polyquaternium-51, Glyceryl Stearate, Beta-Glucan, Adenosine, Fructooligosaccharides, Xanthan Gum, Tromethamine, Glyceryl Polymethacrylate, Sucrose Distearate, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Butylene Glycol, Silica, Hydrolyzed Corn Starch, Caprylyl Glycol, Ethylhexylglycerin Isopropyl Myristate Caprylic/Capric Triglyceride Hydroxystearic Acid Oryza Sativa Bran Oil Tocotrienols Retinyl Propionate Hexylresorcinol Cetyl Alcohol Castanea Sativa Leaf Extract Hydroxyacetophenone Sodium Hydroxide Dilauryl Thiodipropionate Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Sodium Phytate BHT Water, Isopropyl Myristate, Caprylic/Capric Triglyceride, Glycerin, Niacinamide, Hydroxystearic Acid, Oryza Sativa Bran Oil, Tocotrienols, Retinyl Propionate, Hexylresorcinol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Cetyl Alcohol, Castanea Sativa Leaf Extract, Hydroxyacetophenone, Ceramide AP, 1,2-Hexanediol, Caprylyl Glycol, Sodium Hydroxide, Dilauryl Thiodipropionate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Sodium Phytate, BHT 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. 1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse. It is a: Humectant, drawing moisture into the skin Emollient, helping to soften skin Solvent, dispersing and stabilizing formulas Preservative booster, enhancing the antimicrobial activity of other preservatives 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. 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). Ceramide AP is is a skin-identical lipid that mimics what your skin already makes naturally. Ceramides help maintain epidermal integrity and barrier function. You'll often see this ingredient paired with other ceramides (like ceramide NP), cholesterol, or fatty acids because this combination best mimics the natural lipid mix your skin already has. The skin's ability to produce ceramides gets disrupted in skin conditions like eczema. This in turn weakens the skin barrier and applying ceramides topically has been shown to replenish what's been lost to restore barrier function. Most of the studies with Ceramide AP test it as part of a multi-ceramide complex; studies reinforce ceramide AP's role in rebalancing ceramides in skin and improving skin hydration. 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 Americ