Paula's Choice 1% Retinol Booster Versus L'Oreal Revitalift Derm Intensives Night Serum with 0.3% Pure Retinol

Paula's Choice 1% Retinol Booster Versus L'Oreal Revitalift Derm Intensives Night Serum with 0.3% Pure Retinol Detailed comparison of Paula's Choice 1% Retinol Booster versus L'Oreal Revitalift Derm Intensives Night Serum with 0.3% Pure Retinol. This anti-aging treatment is formulated around Retinol and Ceramide NP to soften the look of wrinkles and refine skin texture. This anti-aging serum is formulated around Retinol to soften the look of wrinkles and refine skin texture. Water Glycerin Carthamus Tinctorius Seed Oil Polyglyceryl-10 Caprylate/Caprate Butylene Glycol Pyrus Malus Fruit Extract Polysorbate 20 Retinol Glycyrrhiza Glabra Root Ceramide NP Palmitoyl Tripeptide-1 Avena Sativa Kernel Extract Epilobium Angustifolium Extract Arctium Lappa Seed Oil Salix Alba Extract Allantoin Dipotassium Glycyrrhizate Caprylyl Glycol Polyglyceryl-10 Laurate Dipentaerythrityl Hexacaprylate/Hexacaprate Ethylhexyl Olivate Hydrogenated Lecithin Glyceryl Ascorbate Disodium EDTA Sorbic Acid Xanthan Gum Phenoxyethanol Water, Glycerin, Carthamus Tinctorius Seed Oil, Polyglyceryl-10 Caprylate/Caprate, Butylene Glycol, Pyrus Malus Fruit Extract, Polysorbate 20, Retinol, Glycyrrhiza Glabra Root, Ceramide NP, Palmitoyl Tripeptide-1, Avena Sativa Kernel Extract, Epilobium Angustifolium Extract, Arctium Lappa Seed Oil, Salix Alba Extract, Allantoin, Dipotassium Glycyrrhizate, Caprylyl Glycol, Polyglyceryl-10 Laurate, Dipentaerythrityl Hexacaprylate/Hexacaprate, Ethylhexyl Olivate, Hydrogenated Lecithin, Glyceryl Ascorbate, Disodium EDTA, Sorbic Acid, Xanthan Gum, Phenoxyethanol Alcohol Denat. Glycine Soja Oil Isononyl Isononanoate Pentylene Glycol Dicaprylyl Ether Propylene Glycol PEG-6 Caprylic/Capric Glycerides PPG-6-Decyltetradeceth-30 Dicaprylyl Carbonate Glyceryl Isostearate Sodium Hyaluronate Ammonium Polyacryloyldimethyl Taurate Citric Acid Trisodium Ethylenediamine Disuccinate Tocopherol Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Ceramide AP Water, Glycerin, Alcohol Denat., Glycine Soja Oil, Isononyl Isononanoate, Pentylene Glycol, Dicaprylyl Ether, Propylene Glycol, PEG-6 Caprylic/Capric Glycerides, PPG-6-Decyltetradeceth-30, Dicaprylyl Carbonate, Glyceryl Isostearate, Sodium Hyaluronate, Retinol, Ammonium Polyacryloyldimethyl Taurate, Caprylyl Glycol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xanthan Gum, Butylene Glycol, Tocopherol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Ceramide AP 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). 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. Retinol is one of the most studied anti-aging ingredients in skincare (and for good reason!). It's a form of vitamin A that your skin converts into Retinoic Acid, the active molecule that actually does the work in your cells. That conversion happens in two steps: your skin first turns Retinol into Retinaldehyde (also called Retinal), then turns Retinaldehyde into Retinoic Acid. Retinol is converted to biologically active retinoic acid via retinaldehyde by dehydrogenases in a two-step oxidation process. Each step is a little "upgrade" toward the active form which is part of why Retinol is gentler than prescription Retinoic Acid; your skin does the work gradually. This also explains where Retinol sits in the retinoid family. Here is the retinoid family ranked roughly by strength: Retinyl Esters (like Retinyl Palmitate) < Retinol < Retinaldehyde < Retinoic Acid. Retinoid activity increases in that order, while tolerance runs in reverse; retinyl esters are the gentlest and retinoic acid the most irritating. The more conversion steps an ingredient needs, the gentler (and slower) it tends to be, so Retinol lands in a nice middle spot. It's more effective than the esters, gentler than prescription options. On