Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Olehenriksen Strength Trainer Peptide Boost Moisturizer Versus The INKEY List Peptide Moisturizer

Olehenriksen Strength Trainer Peptide Boost Moisturizer Versus The INKEY List Peptide Moisturizer Detailed comparison of Olehenriksen Strength Trainer Peptide Boost Moisturizer versus The INKEY List Peptide Moisturizer. This barrier-repair moisturizer is formu

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Olehenriksen Strength Trainer Peptide Boost Moisturizer Versus The INKEY List Peptide Moisturizer Detailed comparison of Olehenriksen Strength Trainer Peptide Boost Moisturizer versus The INKEY List Peptide Moisturizer. This barrier-repair moisturizer is formulated around Niacinamide and Acetyl Hexapeptide-8 to strengthen the skin barrier and soften the look of wrinkles. Water Propanediol Dicaprylyl Carbonate Glycerin Methylpropanediol Cetearyl Alcohol Stearyl Alcohol Mangifera Indica Seed Butter Niacinamide Acetyl Hexapeptide-1 Acetyl Hexapeptide-8 Acetyl Octapeptide-3 Acetyl Tetrapeptide-2 Acetyl Dipeptide-1 Cetyl Ester Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Carnosine Ceramide NP Ceramide AP Ceramide EOP Collagen Serine Alanine Glycine Glutamic Acid Lysine Hcl Threonine Arginine Proline Hyaluronic Acid Sodium Hyaluronate Linoleic Acid Linolenic Acid Sodium PCA Sodium Lactate Panthenol Tocopherol Tocopheryl Acetate Betaine PCA Cyanocobalamin Xylitol Anhydroxylitol Xylitylglucoside Sorbitan Olivate Carbomer Hydroxyethylcellulose Xanthan Gum Cetearyl Olivate Sorbitan Laurate Phytosphingosine Cholesterol Polysorbate 60 Butylene Glycol Hydroxyacetophenone Glycine Soja Oil Acrylates/C10-30 Alkyl Acrylate Crosspolymer Polysorbate 20 Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer Dimethicone Sodium Phytate Sodium Lauroyl Lactylate Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Leuconostoc/Radish Root Ferment Filtrate Citric Acid Caprylyl Glycol Ethylhexylglycerin Phenoxyethanol Parfum Citral Limonene Linalool Water, Propanediol, Dicaprylyl Carbonate, Glycerin, Methylpropanediol, Cetearyl Alcohol, Stearyl Alcohol, Mangifera Indica Seed Butter, Niacinamide, Acetyl Hexapeptide-1, Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Acetyl Tetrapeptide-2, Acetyl Dipeptide-1 Cetyl Ester, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Carnosine, Ceramide NP, Ceramide AP, Ceramide EOP, Collagen, Serine, Alanine, Glycine, Glutamic Acid, Lysine Hcl, Threonine, Arginine, Proline, Hyaluronic Acid, Sodium Hyaluronate, Linoleic Acid, Linolenic Acid, Sodium PCA, Sodium Lactate, Panthenol, Tocopherol, Tocopheryl Acetate, Betaine, PCA, Cyanocobalamin, Xylitol, Anhydroxylitol, Xylitylglucoside, Sorbitan Olivate, Carbomer, Hydroxyethylcellulose, Xanthan Gum, Cetearyl Olivate, Sorbitan Laurate, Phytosphingosine, Cholesterol, Polysorbate 60, Butylene Glycol, Hydroxyacetophenone, Glycine Soja Oil, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Polysorbate 20, Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer, Dimethicone, Sodium Phytate, Sodium Lauroyl Lactylate, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Leuconostoc/Radish Root Ferment Filtrate, Citric Acid, Caprylyl Glycol, Ethylhexylglycerin, Phenoxyethanol, Parfum, Citral, Limonene, Linalool Caprylic/Capric Triglyceride C12-15 Alkyl Benzoate Glyceryl Stearate Se Benzyl Alcohol Butyrospermum Parkii Butter Sodium Stearoyl Glutamate Sodium Hydroxide Sodium Gluconate Dehydroacetic Acid Hydrogenated Lecithin Phenethyl Alcohol Acetyl Hexapeptide-37 Maltodextrin Pentapeptide-48 Water, Caprylic/Capric Triglyceride, Glycerin, C12-15 Alkyl Benzoate, Cetearyl Alcohol, Glyceryl Stearate Se, Betaine, Butylene Glycol, Phenoxyethanol, Benzyl Alcohol, Carbomer, Butyrospermum Parkii Butter, Sodium Stearoyl Glutamate, Sodium Hydroxide, These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Betaine is a humectant. Like hyaluronic acid, it helps attract and retain moisture in the skin. It’s known for being gentle and for helping the skin maintain balanced hydration. Betaine is mainly used to improve hydration and support calmer skin. It helps skin cells regulate water balance because it functions as an osmolyte. Some studies suggest betaine may support making skin tone more even. Fun fact: Betaine naturally exists in the skin and the body. In cosmetic products, it can be either plant-derived (most commonly from sugar beets) or synthetically produced for consistency and stability. Betaine is also known as trimethylglycine. 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. 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. Cetearyl alcohol is a waxy mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is an emollient and emulsifier. Despite having "alcohol" in its name, it has nothing to do with drying solvent alcohols; the FDA also allows "alcohol-free" products to contain fatty alcohols like this ingredient. It plays several roles in a formula: Typical use levels for this ingredient sit around 1-10% and the Cosmetic Ingredient Review Expert Panel has affirmed safety at concentrations up to 25% in leave-on products. Multiple assessments have found it to be non-irritating and non-sensitizing to most people. However, there have been some cases of allergic contact dermatitis in patients with chronically compromised skin barriers. Cetearyl alcohol has a comedogenic rating of 2 and irritancy rating of 1. Both of these numbers come from the 1989 study that used rabbit ears; a "2" means mildly comedogenic and a "1" means low irritancy. Here's the catch: rabbit skin is more sensitive than human skin and throws a lot of false positives. A 1996 reappraisal found that ingredients rated 1-2 in the rabbit ear tests are generally safe for humans