Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Medik8 Daily Radiance Vitamin C Versus Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50

Medik8 Daily Radiance Vitamin C Versus Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50 Detailed comparison of Medik8 Daily Radiance Vitamin C versus Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50. This brightening day moisturizer is formulated aroun

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

Medik8 Daily Radiance Vitamin C Versus Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50 Detailed comparison of Medik8 Daily Radiance Vitamin C versus Paula's Choice 5% Vitamin C Sheer Moisturizer SPF 50. This brightening day moisturizer is formulated around Tetrahexyldecyl Ascorbate and Tocopheryl Acetate to brighten dull-looking skin and soften the look of wrinkles. This hybrid sunscreen covers the full UV range and blocks ~98% of UVB at SPF 50. Water Tetrahexyldecyl Ascorbate Diethylamino Hydroxybenzoyl Hexyl Benzoate Dibutyl Adipate Dimethicone Ethylhexyl Triazone Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine C12-15 Alkyl Benzoate Dicaprylyl Carbonate Cetearyl Alcohol Glycerin Coco-Glucoside Phenoxyethanol Acrylates/C10-30 Alkyl Acrylate Crosspolymer Cetearyl Glucoside Tocopheryl Acetate Hydroxyacetophenone Disodium EDTA Benzoic Acid Xanthan Gum Citrus Grandis Peel Oil Sodium Hydroxide Dehydroacetic Acid Sodium Hyaluronate Citrus Limon Peel Oil Citrus Aurantium Bergamia Fruit Oil Pelargonium Graveolens Flower Oil Ethylhexylglycerin Limonene Citronellol Linalool Geraniol Citral Water, Tetrahexyldecyl Ascorbate, Diethylamino Hydroxybenzoyl Hexyl Benzoate, Dibutyl Adipate, Dimethicone, Ethylhexyl Triazone, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, C12-15 Alkyl Benzoate, Dicaprylyl Carbonate, Cetearyl Alcohol, Glycerin, Coco-Glucoside, Phenoxyethanol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Cetearyl Glucoside, Tocopheryl Acetate, Hydroxyacetophenone, Disodium EDTA, Benzoic Acid, Xanthan Gum, Citrus Grandis Peel Oil, Sodium Hydroxide, Dehydroacetic Acid, Sodium Hyaluronate, Citrus Limon Peel Oil, Citrus Aurantium Bergamia Fruit Oil, Pelargonium Graveolens Flower Oil, Ethylhexylglycerin, Limonene, Citronellol, Linalool, Geraniol, Citral Butyl Methoxydibenzoylmethane Ethylhexyl Methoxycinnamate Ethylhexyl Salicylate Octocrylene Silica 3-O-Ethyl Ascorbic Acid Ascorbyl Glucoside Propanediol Acetyl Zingerone Diethylhexyl Syringylidenemalonate Dimethicone/Vinyl Dimethicone Crosspolymer Porphyra Umbilicalis Extract Hydrogenated Lecithin Ricinus Communis Seed Oil Tocopherol Laureth-4 Potassium Sorbate Sodium Benzoate Titanium Dioxide Iron Oxides Entada Phaseoloides Bark/Seed Extract Butyl Methoxydibenzoylmethane, Ethylhexyl Methoxycinnamate, Ethylhexyl Salicylate, Octocrylene, Water, Glycerin, Silica, 3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Dimethicone, Propanediol, Tetrahexyldecyl Ascorbate, Acetyl Zingerone, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Diethylhexyl Syringylidenemalonate, Dimethicone/Vinyl Dimethicone Crosspolymer, Porphyra Umbilicalis Extract, Hydrogenated Lecithin, Ricinus Communis Seed Oil, Sodium Hydroxide, Tocopherol, Xanthan Gum, Ethylhexylglycerin, Laureth-4, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Titanium Dioxide, Iron Oxides, Entada Phaseoloides Bark/Seed Extract 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. Acrylates/C10-30 Alkyl Acrylate Crosspolymer is a synthetic polymer. It is used to thicken, emulsify, and improve the texture of products. As an emulsifier, it helps stabilize oil-in-water emulsions to give products an elegant feel when applied. It can also form a thin protective film on skin. One study found that a formula using this polymer helped slow down how quickly other ingredients (like DEET) were absorbed through skin. A 2024 study of over 1,300 patients confirmed that sensitization to this ingredient is rare. It is also non-mutagenic and has a clean track record. Dimethicone is a type of synthetic silicone created from natural materials such as quartz. It is also known as polydimethylsiloxane. What it does: Dimethicone comes in different viscosities: Depending on the viscosity, dimethicone has different properties. Ingredients lists don't always show which type is used, so we recommend reaching out to the brand if you have questions about the viscosity. This ingredient is unlikely to cause irritation because it does not get absorbed into skin. However, people with silicone allergies should be careful about using this ingredient. Note: Dimethicone may contribute to pilling. This is because it is not oil or water soluble, so pilling may occur when layered with products. When mixed with heavy oils in a formula, the outcome is also quite greasy. Ethylhexylglycerin is created from glycerin. It is a multitasker ingredient that: The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure. Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations. 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 s