Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Supergoop! Daily Dose Vitamin C + SPF 40 Versus Paula's Choice C15 Super Booster

Supergoop! Daily Dose Vitamin C + SPF 40 Versus Paula's Choice C15 Super Booster Detailed comparison of Supergoop! Daily Dose Vitamin C + SPF 40 versus Paula's Choice C15 Super Booster. This chemical sunscreen covers most of the UV range, lighter on the deep U

This source-based comparison does not add ratings or recommend a winner.

Supergoop! Daily Dose Vitamin C + SPF 40 Versus Paula's Choice C15 Super Booster Detailed comparison of Supergoop! Daily Dose Vitamin C + SPF 40 versus Paula's Choice C15 Super Booster. This chemical sunscreen covers most of the UV range, lighter on the deep UVA that drives aging. This brightening serum is formulated around Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and soften the look of wrinkles. Butyl Methoxydibenzoylmethane 3% Homosalate 9% Ethylhexyl Salicylate 5% Octocrylene 6% Water 3-O-Ethyl Ascorbic Acid C13-15 Alkane Glycerin Polyglyceryl-6 Polyricinoleate Polyglyceryl-6 Polyhydroxystearate Octyldodecyl Citrate Crosspolymer Niacinamide Phenethyl Benzoate Polyester-25 Silica Terminalia Ferdinandiana Fruit Extract Rosa Centifolia Flower Extract Jasminum Officinale Flower Extract Bellis Perennis Flower Extract Hydrolyzed Sodium Hyaluronate Sodium Hyaluronate Pseudoalteromonas Ferment Extract Glyceryl Caprylate Disteardimonium Hectorite Xanthan Gum Polyglyceryl-2 Isostearate Magnesium Sulfate Sodium Chloride Citric Acid Trisodium Ethylenediamine Disuccinate Sodium Citrate Pentylene Glycol Propanediol Caprylyl Glycol Ethylhexylglycerin Chlorphenesin Butyl Methoxydibenzoylmethane 3%, Homosalate 9%, Ethylhexyl Salicylate 5%, Octocrylene 6%, Water, 3-O-Ethyl Ascorbic Acid, C13-15 Alkane, Glycerin, Polyglyceryl-6 Polyricinoleate, Polyglyceryl-6 Polyhydroxystearate, Octyldodecyl Citrate Crosspolymer, Niacinamide, Phenethyl Benzoate, Polyester-25, Silica, Terminalia Ferdinandiana Fruit Extract, Rosa Centifolia Flower Extract, Jasminum Officinale Flower Extract, Bellis Perennis Flower Extract, Hydrolyzed Sodium Hyaluronate, Sodium Hyaluronate, Pseudoalteromonas Ferment Extract, Glyceryl Caprylate, Disteardimonium Hectorite, Xanthan Gum, Polyglyceryl-2 Isostearate, Magnesium Sulfate, Sodium Chloride, Citric Acid, Trisodium Ethylenediamine Disuccinate, Sodium Citrate, Pentylene Glycol, Propanediol, Caprylyl Glycol, Ethylhexylglycerin, Chlorphenesin Ascorbic Acid Dipropylene Glycol Ethoxydiglycol Sodium Hydroxide PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Bisabolol Ferulic Acid Sodium Phytate Decylene Glycol Tocopherol 1,2-Hexanediol Sphingomonas Ferment Extract Phenoxyethanol Water, Ascorbic Acid, Dipropylene Glycol, Propanediol, Glycerin, Ethoxydiglycol, Sodium Hydroxide, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Bisabolol, Ferulic Acid, Sodium Phytate, Decylene Glycol, Tocopherol, 1,2-Hexanediol, Sphingomonas Ferment Extract, Phenoxyethanol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. Propanediol is an all-star ingredient. It softens, hydrates, and smooths the skin. It’s often used to: Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent. Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product. So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation. You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!