Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Transparent Lab Retinal Age Reverse Cream Versus Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide

Transparent Lab Retinal Age Reverse Cream Versus Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide Detailed comparison of Transparent Lab Retinal Age Reverse Cream versus Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Pepti

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Transparent Lab Retinal Age Reverse Cream Versus Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide Detailed comparison of Transparent Lab Retinal Age Reverse Cream versus Kiehl's Micro-Dose Anti-Aging Retinol Serum with Ceramides and Peptide. This anti-aging moisturizer is formulated around Bakuchiol and Retinal to soften the look of wrinkles and refine skin texture. This anti-aging serum is formulated around Niacinamide and Ceramide NP to soften the look of wrinkles and refine skin texture. Water Glycerin C10-18 Triglycerides Coco-Caprylate/Caprate Coco-Caprylate Propanediol Cetyl Alcohol Oryza Sativa Starch Bakuchiol Glyceryl Stearate Retinal Hyaluronic Acid Palmitoyl Tripeptide-38 Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Ubiquinone Phosphatidylcholine Xanthan Gum PEG-75 Stearate Mannitol Pentylene Glycol Ceteth-20 Caprylyl Glycol Steareth-20 Butylene Glycol Acrylates/C10-30 Alkyl Acrylate Crosspolymer Polysorbate 80 Tocopherol Decyl Glucoside Carbomer Hydroxypropyl Cyclodextrin Polysorbate 20 Sodium Lactate Citric Acid Potassium Sorbate Sodium Benzoate Ethylhexylglycerin Phenoxyethanol Water, Glycerin, C10-18 Triglycerides, Coco-Caprylate/Caprate, Coco-Caprylate, Propanediol, Cetyl Alcohol, Oryza Sativa Starch, Bakuchiol, Glyceryl Stearate, Retinal, Hyaluronic Acid, Palmitoyl Tripeptide-38, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Ubiquinone, Phosphatidylcholine, Xanthan Gum, PEG-75 Stearate, Mannitol, Pentylene Glycol, Ceteth-20, Caprylyl Glycol, Steareth-20, Butylene Glycol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Polysorbate 80, Tocopherol, Decyl Glucoside, Carbomer, Hydroxypropyl Cyclodextrin, Polysorbate 20, Sodium Lactate, Citric Acid, Potassium Sorbate, Sodium Benzoate, Ethylhexylglycerin, Phenoxyethanol Niacinamide Isohexadecane Isononyl Isononanoate Diisopropyl Sebacate 2-Oleamido-1,3-Octadecanediol 4-T-Butylcyclohexanol Acetyl Dipeptide-1 Cetyl Ester Adenosine Ceramide NP Hydroxypalmitoyl Sphinganine Lauroyl Lysine Octyldodecanol Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Sodium Chloride Sodium Hyaluronate Sodium Hydroxide Trisodium Ethylenediamine Disuccinate Retinol Dicaprylyl Ether Ammonium Polyacryloyldimethyl Taurate Behenyl Alcohol Cetearyl Alcohol Cetearyl Glucoside Glycine Soja Oil Helianthus Annuus Seed Oil Hydroxyethylcellulose Lecithin Phenethyl Alcohol Poloxamer 188 Polycaprolactone Sorbitan Laurate Steareth-100 CI 40800 Chlorphenesin Water, Glycerin, Butylene Glycol, Pentylene Glycol, Niacinamide, Cetyl Alcohol, Isohexadecane, Isononyl Isononanoate, Diisopropyl Sebacate, 2-Oleamido-1,3-Octadecanediol, 4-T-Butylcyclohexanol, Acetyl Dipeptide-1 Cetyl Ester, Adenosine, Ceramide NP, Hydroxypalmitoyl Sphinganine, Lauroyl Lysine, Octyldodecanol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Sodium Chloride, Sodium Hyaluronate, Sodium Hydroxide, Trisodium Ethylenediamine Disuccinate, Retinol, Tocopherol, Dicaprylyl Ether, Ammonium Polyacryloyldimethyl Taurate, Behenyl Alcohol, Caprylyl Glycol, Carbomer, Cetearyl Alcohol, Cetearyl Glucoside, Glycine Soja Oil, Helianthus Annuus Seed Oil, Hydroxyethylcellulose, Lecithin, Phenethyl Alcohol, Poloxamer 188, Polycaprolactone, Sorbitan Laurate, Steareth-100, CI 40800, Chlorphenesin, Phenoxyethanol 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. Cetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product. Its main roles are: Though it has "alcohol" in the name, it is not related to denatured alcohol or ethyl alcohol. The FDA allows products labeled "alcohol-free" to have fatty alcohols. This ingredient may not be fungal acne safe. It is a primary fatty alcohol with a chain length above 12 carbons. A study from 2019 show Malassezia can feed on fatty alcohols in this range, so it may trigger fungal acne in those prone to it. 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