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A semi-essential (infants cannot synthesize it, but adults can) amino acid that is one of the primary building blocks of hair keratin and skin collagen. It's a natural moisturizing factor, a skin hydrator and might also help to speed up wound healing

Arginine usually has a positive charge (cationic) that makes it substantive to skin and hair (those are more negatively charged surfaces) and an excellent film former.  Thanks to the positive charge, it also creates a complex with AHAs (AHAs like to lose a hydrogen ion and be negatively charged, so the positive and the negative ions attract each other) that causes a "time-release AHA effect" and reduces the irritation associated with AHAs

Products with Arginine

Doctor Babor Aha 10+10 Peeling Gel Youth To The People Kombucha + 11% Aha Exfoliation Power Toner Cetaphil Baby Eczema Soothing Lotion Heliocare 360° Gel Oil-Free Spf 50 Heliocare 360º MD AK Fluid Medik8 Pore Minimising Tonic Sanzi Beauty Eyelash Growth Serum Cos De BAHA AHA Glycolic Acid 10% Serum Evologie Intensive Blemish Serum NIOD Sanskrit Saponins Peter Thomas Roth Unisex Neuroliquid Volufill Youth Serum Watsons Skin Advanced Platinum Anti-Acne & Repairing Treatment Essence Alkemie Snow White Wake-Up Shot Beauty Counter Countermatch Hydra-Gel Radiance Toner Benton Goodbye Redness Centella Gel CNP Laboratory Invisible Peeling Booster Caolion Peace Water Aqua Fresh Gel Day Cream FEMMUE Lumière Vital C Holika Holika Superfood Capsule Pack (Peppermint) Kicks 10% Aha + 10% Pha Face Concentrate Kiehl’s Herbal-Infused Micellar Cleansing Water Knours Skin Meditation Gel Cream Luxe organix AHA BHA Miracle Toner Maskingdom Aboriginal Taiwan Guava & Black Tea Facial Mask Minon Amino Moist Mask Neostrata Foaming Glycolic Wash Neostrata Ultra Smoothing Lotion Nip+Fab Glycolic Fix Exfoliating Mask Nu Skin Galvanic Spa Facial Treatment Gel With Ageloc Pixi Hydrating Milky Peel Purito Pure Vitamin C Serum Swanicoco Neofinetia Falcata Callus Pure Ampoule TIA'M Vitamin Blending Powder Ausceuticals Peptide Moisturiser BELLAMONSTER Stress Out Solution Pad Bakel Gentle Wash Soothing Cleansing Gel Brickell Renewing Face Scrub Brickell Men's Products Daily Strengthening Shampoo For Men COSRX Bha Blackhead Power Liquid 4% Exuviance Antiredness Calming Serum Garnier Organic Thyme Toner Grown Alchemist Age-Repair Gel Masque Kiehl’s Cilantro & Orange Extract Pollutant Defending Mask Kikumasamune Sake Brewing Skin Care Lotion High Moist Kikumasamune Sake High Moisture Skin Lotion Toner Koh Gen Do Cleansing Spa Water NIOD Sanskrit Saponins Neostrata Bionic Face Serum 10 Bionic Neutrea Summer Peel Ole Henriksen Wonderfeel Double Cleanser