Follow us on our new Insta page »



Official CosIng Information


A branch-chained, essential amino acid that can be found in things like almond, cashew or soy protein. When taken orally it may promote protein synthesis. As for skincare - like all the amino acids - it's a skin-identical ingredient and moisturizer. It also seems to be useful as a barrier repair ingredient.  

Show me some proof

  • Pediatric Allergy and Immunology, Volume 25, Issue 3, 13 JAN 2014, Local rhamnosoft, ceramides and L-isoleucine in atopic eczema: a randomized, placebo controlled trial

Products with Isoleucine

Peter Thomas Roth Unisex Neuroliquid Volufill Youth Serum Kikumasamune Sake Brewing Skin Care Lotion Bright Moist Atypical Skincare Glow Tonic Copenhagen Grooming The Activator The Ordinary Marine Hyaluronics Anastasia Beverly Hills Eye Primer Kikumasamune Skin Care Essence Pacifica Cosmic Hemp Balancing Face Wash Esho Drench The Ordinary Natural Moisturizing Factors + Ha Umoua Advanced Extraction Isosmotic Tech Amino Acid Lotion Votary Cleansing Oil Amika Flash Instant Shine Hair Gloss Mask Ausceuticals Peptide Moisturiser Brickell Men's Products Daily Strengthening Shampoo For Men Brickell Men's Products Reviving Day Serum For Men Leaders Insolution Mediu Amino Pore-Tight Mask QRxLabs Peptide Complex Serum the Cocoon Rose Water Toner Abnomaly Petrowhat? Bali Abnomaly Petrowhat? Baobab Abnomaly Petrowhat? Milk Abnomaly Petrowhat? Rio Dearskin Vitamin C Dear Serum G.M. Collin Hydramucine Treating Mist Holifrog Tashmoo Water Lily Nourishing Milky Wash Holifrog Tashmoo Water Lily Nourishing Milky Wash Klorane Bebe Gentle Cleansing Gel Mecca Cosmetica Hydrating Mist SkinOwl Eye The Mom's Co. Hair Serum The Ordinary Amino Acids + B5 Verb Hydrating Shampoo abi dermaceuticals Egf Rapid Repair Algenist Genius Ultimate Anti-Aging Foaming Cleanser Chick Cosmetics Silky Face Toner - 7% Glycolic Acid Dearskin Vitamin C Dear Serum Living proof Intense Moisture Mask Reverie Shampoo The Ordinary Glycolic Acid 7% Toning Solution Virtue Labs Refresh Purifying Leave-In Conditioner klorane baby Moisturising Cream labo Labo Labo Super Keana Lotion Eight Saints Night Shift Hydration Gel Lador Wonder Balm Leaders Mediu Amino Mousture Mask Loopha Broadleaf Forest Body Wash Mvrck Skin + Beard Lotion Reverie Conditioner Terre mere Oat And Rosehip Hydration Bomb Masque