Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Regimen Lab Azelaic Advanced Versus Allies of Skin Azelaic & Kojic Advanced Clarifying Serum

Regimen Lab Azelaic Advanced Versus Allies of Skin Azelaic & Kojic Advanced Clarifying Serum Detailed comparison of Regimen Lab Azelaic Advanced versus Allies of Skin Azelaic & Kojic Advanced Clarifying Serum. This calming serum is formulated around Azelaic Ac

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

Regimen Lab Azelaic Advanced Versus Allies of Skin Azelaic & Kojic Advanced Clarifying Serum Detailed comparison of Regimen Lab Azelaic Advanced versus Allies of Skin Azelaic & Kojic Advanced Clarifying Serum. This calming serum is formulated around Azelaic Acid and Potassium Azeloyl Diglycinate to calm redness and fade the look of dark spots. This brightening serum is formulated around Azelaic Acid and Kojic Acid to fade the look of dark spots and clear breakouts. No concerns Water Azelaic Acid Ethoxydiglycol Sophora Japonica Root Extract Potassium Azeloyl Diglycinate Butylene Glycol Glycerin Pentylene Glycol Methylpropanediol Azelamide Mea Azelamidopropyl Dimethyl Amine Tetrasodium Tetracarboxymethyl Naringeninchalcone Naringenin Bisabolol Glucosylrutin Swertia Chirata Extract Rutin Houttuynia Cordata Extract Tasmannia Lanceolata Fruit/Leaf Extract Tetrasodium Glutamate Diacetate Water, Azelaic Acid, Ethoxydiglycol, Sophora Japonica Root Extract, Potassium Azeloyl Diglycinate, Butylene Glycol, Glycerin, Pentylene Glycol, Methylpropanediol, Azelamide Mea, Azelamidopropyl Dimethyl Amine, Tetrasodium Tetracarboxymethyl Naringeninchalcone, Naringenin, Bisabolol, Glucosylrutin, Swertia Chirata Extract, Rutin, Houttuynia Cordata Extract, Tasmannia Lanceolata Fruit/Leaf Extract, Tetrasodium Glutamate Diacetate Aloe Barbadensis Leaf Juice Propanediol Caprylic/Capric Triglyceride Kojic Acid Polysorbate 20 Caprylyl Glycol Hexylresorcinol Ethyl Linoleate Leuconostoc/Radish Root Ferment Filtrate Dodecane Hydroxyethylcellulose Xanthan Gum Helianthus Annuus Seed Oil Squalane Glyceryl Laurate Glyceryl Undecylenate Allantoin Ribose Sodium Acetate Bakuchiol Glycyrrhiza Glabra Root Extract Cellulose Phenoxyethanol Water, Azelaic Acid, Butylene Glycol, Aloe Barbadensis Leaf Juice, Propanediol, Caprylic/Capric Triglyceride, Kojic Acid, Polysorbate 20, Glycerin, Caprylyl Glycol, Hexylresorcinol, Ethyl Linoleate, Leuconostoc/Radish Root Ferment Filtrate, Dodecane, Hydroxyethylcellulose, Xanthan Gum, Helianthus Annuus Seed Oil, Squalane, Bisabolol, Glyceryl Laurate, Glyceryl Undecylenate, Allantoin, Ribose, Sodium Acetate, Bakuchiol, Glycyrrhiza Glabra Root Extract, Cellulose, Phenoxyethanol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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. Bisabolol is a gentle skin conditioner, antioxidant, and soothing ingredient. It's primary claim to fame is soothing and research shows topically applied bisabolol can quiet the chemical messengers that cause your skin to become inflamed, helping to sooth any irritation. A clinical study found that applying 0.5% bisabolol daily for 8 weeks produced an average 9% decrease in skin pigmentation. Researchers found it can also suppress the process that leads to excess melanin production in skin. In vitro studies found that bisabolol combined with propylene glycol significantly increased skin permeability by increasing lipid fluidity in the stratum corneum. You'll likely see use concentrations quite low, usually 0.1-0.2%. Overall, this is a well-tolerated ingredient that works well in formulas designed for sensitive, reactive, or post-procedure skin. 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. 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 th