Paula's Choice Hyaluronic Acid Booster Versus SkinCeuticals Hyaluronic Acid Intensifier (H.A.)

Paula's Choice Hyaluronic Acid Booster Versus SkinCeuticals Hyaluronic Acid Intensifier (H.A.) Detailed comparison of Paula's Choice Hyaluronic Acid Booster versus SkinCeuticals Hyaluronic Acid Intensifier (H.A.). This hydrating treatment is formulated around Sodium Hyaluronate and Hyaluronic Acid to hydrate skin and strengthen the skin barrier. This hydrating serum is formulated around Dipotassium Glycyrrhizate and Sodium Hyaluronate to hydrate skin and soften the look of wrinkles. Water Glycerin Sodium Hyaluronate Hyaluronic Acid Ceramide NP Ceramide AP Ceramide EOP Phytosphingosine Yeast Extract Adenosine Cholesterol Panthenol Silanetriol Butylene Glycol Sodium Lauroyl Lactylate Carbomer Xanthan Gum Citric Acid Sodium Hydroxide Polysorbate 20 Ethylhexylglycerin Phenoxyethanol Water, Glycerin, Sodium Hyaluronate, Hyaluronic Acid, Ceramide NP, Ceramide AP, Ceramide EOP, Phytosphingosine, Yeast Extract, Adenosine, Cholesterol, Panthenol, Silanetriol, Butylene Glycol, Sodium Lauroyl Lactylate, Carbomer, Xanthan Gum, Citric Acid, Sodium Hydroxide, Polysorbate 20, Ethylhexylglycerin, Phenoxyethanol Cyclohexasiloxane Alcohol Denat. Hydroxypropyl Tetrahydropyrantriol Propylene Glycol Dipotassium Glycyrrhizate Polysilicone-11 Polymethylsilsesquioxane Dimethicone Tocopherol Capryloyl Salicylic Acid Octyldodecanol Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone PEG-20 Methyl Glucose Sesquistearate Ammonium Polyacryloyldimethyl Taurate Caprylyl Glycol Dextrin Oryza Sativa Extract Disodium EDTA Caprylic/Capric Triglyceride Citrus Nobilis Peel Oil Limonene T-Butyl Alcohol Cellulose Acetate Butyrate Polyphosphorylcholine Glycol Acrylate Polyvinyl Alcohol Sodium Chloride Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate Water, Cyclohexasiloxane, Glycerin, Alcohol Denat., Hydroxypropyl Tetrahydropyrantriol, Propylene Glycol, Dipotassium Glycyrrhizate, Polysilicone-11, Polymethylsilsesquioxane, Sodium Hyaluronate, Dimethicone, Tocopherol, Phenoxyethanol, Capryloyl Salicylic Acid, Octyldodecanol, Bis-PEG/PPG-16/16 PEG/PPG-16/16 Dimethicone, PEG-20 Methyl Glucose Sesquistearate, Ammonium Polyacryloyldimethyl Taurate, Caprylyl Glycol, Xanthan Gum, Dextrin, Oryza Sativa Extract, Disodium EDTA, Caprylic/Capric Triglyceride, Sodium Hydroxide, Adenosine, Citrus Nobilis Peel Oil, Limonene, T-Butyl Alcohol, Cellulose Acetate Butyrate, Polyphosphorylcholine Glycol Acrylate, Polyvinyl Alcohol, Sodium Chloride, Butylene Glycol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Adenosine is a purine nucleoside that your body already makes in every cell. In skincare, it acts mainly as a skin conditioning and anti-aging agent. The way it works is fairly well mapped out: Your skin has cells called fibroblasts that build collagen (the stuff that keeps skin firm and smooth). Adenosine basically flips a switch on these cells that tells them to get to work making more collagen and other proteins. These cells slow down on their own as skin ages, so Adenosine helps give them a little nudge to keep going. The clinical backing is pretty solid too. A blind, randomized, placebo-controlled trial of 126 women aged 45-65 tested a 0.1% cream twice daily and found real improvements in crow's feet and frown lines using a precise 3D skin-mapping technique; these changes showed up by week 3 and held at 2 months. A later study using Adenosine-loaded dissolving microneedle patches reported gains in wrinkle depth, dermal density, elasticity, and hydration. On concentrations, South Korea's Ministry of Food and Drug Safety has set 0.04% as the approved functional anti-wrinkle level. You'll typically see this ingredient used somewhere in the 0.04-0.1% range since it works at low doses. This ingredient has been found safe for cosmetics with the data showing no irritation or sensitization. Overall, this is a great ingredient for any anti-aging routine and has no photosensitizing effect, so it suits both AM and PM use. 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. 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 activ