Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Cocokind Ceramide Barrier Serum Versus Allies of Skin 20% Vitamin C Brighten + Firm Serum

Cocokind Ceramide Barrier Serum Versus Allies of Skin 20% Vitamin C Brighten + Firm Serum Detailed comparison of Cocokind Ceramide Barrier Serum versus Allies of Skin 20% Vitamin C Brighten + Firm Serum. This barrier-repair serum is formulated around Aloe Barb

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Cocokind Ceramide Barrier Serum Versus Allies of Skin 20% Vitamin C Brighten + Firm Serum Detailed comparison of Cocokind Ceramide Barrier Serum versus Allies of Skin 20% Vitamin C Brighten + Firm Serum. This barrier-repair serum is formulated around Aloe Barbadensis Leaf Juice and Beta-Glucan to strengthen the skin barrier and hydrate skin. This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Glutathione to brighten dull-looking skin. Aloe Barbadensis Leaf Juice Water Propanediol Glycerin Simmondsia Chinensis Seed Oil Squalane Beta-Glucan Lysolecithin Sclerotium Gum Pullulan Xanthan Gum Ceramide NP Ceramide Ns Ceramide AP Ceramide Eos Ceramide EOP Sodium Levulinate Sodium Anisate Tocopherol Cetyl Alcohol Caprylyl Glycol Ceteareth-25 Silica Caprooyl Phytosphingosine Caprooyl Sphingosine Cholesterol Helianthus Annuus Seed Oil Glyceryl Caprylate Phenoxyethanol Sodium Benzoate Ethylhexylglycerin 1,2-Hexanediol Citric Acid Behenic Acid Aloe Barbadensis Leaf Juice, Water, Propanediol, Glycerin, Simmondsia Chinensis Seed Oil, Squalane, Beta-Glucan, Lysolecithin, Sclerotium Gum, Pullulan, Xanthan Gum, Ceramide NP, Ceramide Ns, Ceramide AP, Ceramide Eos, Ceramide EOP, Sodium Levulinate, Sodium Anisate, Tocopherol, Cetyl Alcohol, Caprylyl Glycol, Ceteareth-25, Silica, Caprooyl Phytosphingosine, Caprooyl Sphingosine, Cholesterol, Helianthus Annuus Seed Oil, Glyceryl Caprylate, Phenoxyethanol, Sodium Benzoate, Ethylhexylglycerin, 1,2-Hexanediol, Citric Acid, Behenic Acid 3-O-Ethyl Ascorbic Acid Benzimidazole Diamond Amidoethyl Urea Carbamoyl Propyl Polymethylsilsesquioxane Dimethyl Isosorbide Helianthus Annuus Seed Wax Polyglyceryl-10 Tristearate Ethoxydiglycol Dicaprylyl Ether Citrus Aurantium Dulcis Callus Culture Extract Glutathione Acetyl Cysteine Dimethylmethoxy Chromanol Ergothioneine Gluconolactone Leuconostoc/Radish Root Ferment Filtrate Calcium Gluconate Propanediol, Glycerin, 3-O-Ethyl Ascorbic Acid, Benzimidazole Diamond Amidoethyl Urea Carbamoyl Propyl Polymethylsilsesquioxane, Dimethyl Isosorbide, Helianthus Annuus Seed Wax, Polyglyceryl-10 Tristearate, Ethoxydiglycol, Dicaprylyl Ether, Water, Caprylyl Glycol, Citrus Aurantium Dulcis Callus Culture Extract, Glutathione, Acetyl Cysteine, Dimethylmethoxy Chromanol, Ergothioneine, Tocopherol, Gluconolactone, Leuconostoc/Radish Root Ferment Filtrate, Xanthan Gum, Silica, Sodium Benzoate, Calcium Gluconate, Phenoxyethanol 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). 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 effectively as doubling the Phenoxyethanol concentration on its own. Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU. Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages. Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon. 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