Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Skin401 5% Azelaic Acid Serum Versus The INKEY List SuperSolutions 10% Azelaic Serum Redness Relief Solution

Skin401 5% Azelaic Acid Serum Versus The INKEY List SuperSolutions 10% Azelaic Serum Redness Relief Solution Detailed comparison of Skin401 5% Azelaic Acid Serum versus The INKEY List SuperSolutions 10% Azelaic Serum Redness Relief Solution. This calming serum

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Skin401 5% Azelaic Acid Serum Versus The INKEY List SuperSolutions 10% Azelaic Serum Redness Relief Solution Detailed comparison of Skin401 5% Azelaic Acid Serum versus The INKEY List SuperSolutions 10% Azelaic Serum Redness Relief Solution. This calming serum is formulated around Azelaic Acid and Panthenol to calm redness and fade the look of dark spots. This calming serum is formulated around Azelaic Acid to calm redness and clear breakouts. Water Propylene Glycol Azelaic Acid Panthenol Melaleuca Alternifolia Leaf Extract Sodium Hyaluronate Glycyrrhiza Glabra Root Extract Camellia Sinensis Leaf Extract Hydroxyethylcellulose Glycerin Sodium Benzoate Allantoin Potassium Sorbate PEG-40 Hydrogenated Castor Oil Tetrasodium EDTA Phenoxyethanol Benzoic Acid Dehydroacetic Acid Sodium Hydroxide Water, Propylene Glycol, Azelaic Acid, Panthenol, Melaleuca Alternifolia Leaf Extract, Sodium Hyaluronate, Glycyrrhiza Glabra Root Extract, Camellia Sinensis Leaf Extract, Hydroxyethylcellulose, Glycerin, Sodium Benzoate, Allantoin, Potassium Sorbate, PEG-40 Hydrogenated Castor Oil, Tetrasodium EDTA, Phenoxyethanol, Benzoic Acid, Dehydroacetic Acid, Sodium Hydroxide Propanediol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Acacia Senegal Gum Xanthan Gum Ethylhexylglycerin Polysorbate 60 Sorbitan Isostearate Maltodextrin Hydrolyzed Gardenia Florida Extract Gardenia Florida Fruit Extract Polylysine Water, Azelaic Acid, Propanediol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Phenoxyethanol, Acacia Senegal Gum, Xanthan Gum, Allantoin, Glycerin, Ethylhexylglycerin, Polysorbate 60, Sorbitan Isostearate, Maltodextrin, Sodium Hydroxide, Hydrolyzed Gardenia Florida Extract, Gardenia Florida Fruit Extract, Polylysine These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Allantoin is a soothing ingredient known for its protective and moisturizing properties; it's basically a quiet workhorse ingredient you can find in a huge range of cosmetics. Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity. Research shows it can encourage your skin cells to turn over and renew by stimulating keratinocyte and fibroblast proliferation. It also has mild keratolytic properties to help loosen and shed dead skin cells without being harsh. Studies also suggest allantoin can help calm inflammation by dialing down some of the chemical signals your skin sends out when it is irritated. This ingredient is typically used in the 0.1-0.5% range, and the FDA recognizes it as a skin protectant in OTC products up to 2%. Overall, allantoin is a wonderful addition to most routines; it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating. Fun fact: Allantoin is naturally occurring in comfrey root, beets, chamomile, and wheat sprouts. Our bodies even produce it as a byproduct of uric acid metabolism. Azelaic acid is a multitasker ingredient that helps treat acne, pigmentation, and irritation. It is a great option for sensitive skin. What makes it special? OTC Azelaic acid is usually available in concentrations from 10-15% and anything over requires a prescription. Here's what each tier does best: Unlike other acids, azelaic acid will not make your skin more photosensitive/sun sensitive. Though this ingredient is naturally occurring in grains like wheat, rye, and barley, it is usually synthetically created for cosmetics to ensure stability and effectiveness. 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