Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Alpha-H Vitamin A Serum with 0.5% Retinol Versus Paula's Choice Clinical 0.3% Retinol + 2% Bakuchiol Treatment

Alpha-H Vitamin A Serum with 0.5% Retinol Versus Paula's Choice Clinical 0.3% Retinol + 2% Bakuchiol Treatment Detailed comparison of Alpha-H Vitamin A Serum with 0.5% Retinol versus Paula's Choice Clinical 0.3% Retinol + 2% Bakuchiol Treatment. This anti-agin

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Alpha-H Vitamin A Serum with 0.5% Retinol Versus Paula's Choice Clinical 0.3% Retinol + 2% Bakuchiol Treatment Detailed comparison of Alpha-H Vitamin A Serum with 0.5% Retinol versus Paula's Choice Clinical 0.3% Retinol + 2% Bakuchiol Treatment. This anti-aging serum is formulated around Retinol and Squalane to soften the look of wrinkles and refine skin texture. This anti-aging treatment is formulated around Bakuchiol and Tetrahexyldecyl Ascorbate to soften the look of wrinkles and refine skin texture. Water Glycerin Methyl Gluceth-20 Polysorbate 80 Polyacrylate Crosspolymer-6 Phenoxyethanol Squalane Retinol Polysorbate 20 Simmondsia Chinensis Seed Oil Solanum Lycopersicum Fruit Extract Prunus Amygdalus Dulcis Oil Oenothera Biennis Oil Macadamia Ternifolia Seed Oil Caprylyl Glycol Sodium Stearoyl Glutamate Disodium EDTA Citric Acid Water, Glycerin, Methyl Gluceth-20, Polysorbate 80, Polyacrylate Crosspolymer-6, Phenoxyethanol, Squalane, Retinol, Polysorbate 20, Simmondsia Chinensis Seed Oil, Solanum Lycopersicum Fruit Extract, Prunus Amygdalus Dulcis Oil, Oenothera Biennis Oil, Macadamia Ternifolia Seed Oil, Caprylyl Glycol, Sodium Stearoyl Glutamate, Disodium EDTA, Citric Acid Dimethicone Pentaerythrityl Tetraisostearate Isononyl Isononanoate Butylene Glycol Bakuchiol Arachidyl Alcohol Glyceryl Polymethacrylate Dimethicone Crosspolymer Behenyl Alcohol PEG-75 Shea Butter Glycerides Glyceryl Stearate C12-15 Alkyl Benzoate Tetrahexyldecyl Ascorbate Ceramide Ng Palmitoyl Tetrapeptide-7 Palmitoyl Hexapeptide-12 Sodium Hyaluronate Dipotassium Glycyrrhizate Glycyrrhiza Glabra Root Extract Avena Sativa Kernel Extract Arctium Lappa Root Extract Salix Alba Bark Extract Glycine Soja Sterols Lecithin Allantoin Tocopheryl Acetate Hydrolyzed Soy Protein Palmitoyl Tripeptide-1 Sodium Hydroxide Tribehenin Dipeptide-2 Polygonum Cuspidatum Root Extract PEG-10 Phytosterol PEG-8 Magnesium Aluminum Silicate Arachidyl Glucoside Chrysin Pentylene Glycol Sodium Acrylates Copolymer Steareth-20 Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Cetearyl Alcohol Coco-Glucoside Hesperidin Methyl Chalcone N-Hydroxysuccinimide Benzoic Acid Ethylhexylglycerin Water, Dimethicone, Pentaerythrityl Tetraisostearate, Isononyl Isononanoate, Butylene Glycol, Bakuchiol, Arachidyl Alcohol, Glyceryl Polymethacrylate, Dimethicone Crosspolymer, Behenyl Alcohol, Glycerin, PEG-75 Shea Butter Glycerides, Glyceryl Stearate, C12-15 Alkyl Benzoate, Polysorbate 20, Tetrahexyldecyl Ascorbate, Retinol, Ceramide Ng, Palmitoyl Tetrapeptide-7, Palmitoyl Hexapeptide-12, Sodium Hyaluronate, Dipotassium Glycyrrhizate, Glycyrrhiza Glabra Root Extract, Avena Sativa Kernel Extract, Arctium Lappa Root Extract, Salix Alba Bark Extract, Glycine Soja Sterols, Lecithin, Allantoin, Tocopheryl Acetate, Hydrolyzed Soy Protein, Palmitoyl Tripeptide-1, Sodium Hydroxide, Tribehenin, Caprylyl Glycol, Dipeptide-2, Polygonum Cuspidatum Root Extract, PEG-10 Phytosterol, PEG-8, Magnesium Aluminum Silicate, Arachidyl Glucoside, Chrysin, Pentylene Glycol, Sodium Acrylates Copolymer, Steareth-20, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Cetearyl Alcohol, Coco-Glucoside, Hesperidin Methyl Chalcone, N-Hydroxysuccinimide, Disodium EDTA, Phenoxyethanol, Benzoic Acid, Ethylhexylglycerin 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). Disodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air. This ingredient mainly works behind the scenes and helps with: On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it. One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin). Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption. You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%. 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 English uses Glycerol/Glycerine. Phenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!). It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome. On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive. Another perk of this ingredient is that it stays functional across a wide pH range (3-10). You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectiv