An essential amino acid that's also a key building block of collagen and elastin. When taken orally, it helps the digestive and intestinal tracts function more smoothly and also helps the absorption of nutrients. As for skincare, it is not clear what it does other than being a skin hydrator

Products with Threonine

Leaders Mediu Amino Mousture Mask Minon Amino Moist Mask Olay Quench Daily Body Lotion The Ordinary Amino Acids + B5 Ausceuticals Peptide Moisturiser Kikumasamune Skin Care Essence The Ordinary Marine Hyaluronics Murad Eye Lift Firming Treatment™ Esho Drench La Prairie Anti-Aging Rapid Response Booster The Ordinary Natural Moisturizing Factors + Ha Equal Beauty Super Serum Hydrantioxidant™ Abnomaly Petrowhat? Bali Abnomaly Petrowhat? Baobab Abnomaly Petrowhat? Milk Abnomaly Petrowhat? Rio Isntree Real Rose Calming Mask Nacific Glow Intensive Bubble Toner Ishizawa Mochitto Awadate-Irazu (Face Wash Without Bubbling) The Ordinary Glycolic Acid 7% Toning Solution LANEIGE Essential Power Skin Refiner (Sensitive) Loopha Broadleaf Forest Body Wash Sonia Roselli Japanese Cleansing Oil The Ordinary Buffet Faith in Nature Rose & Neroli Nourish & Repair Conditioner LANEIGE Power Essential Skin Refiner Moisture NIOD Survival 0 The Ordinary Buffet + Copper Peptides 1% Zelens Z Balance Prebiotic & Probiotic Facial Mist NIOD Survival 0 (Old Version) Paula's Choice Peptide Booster Scinic Peptide Ampoule 95 Stemm High-Amino Shampoo Mediheal N.M.F Aquaring Ampoule Mask Peter Thomas Roth Retinol Fusion Pm Moisturizer Institut Esthederm Eve Serum Planet Eden Antioxidant Recovery Cream NIOD Multi-Molecular Hyaluronic Complex 2 (Mmhc2) Paula's Choice Skincare Earth Sourced Purely Natural Refreshing Toner Bioderma Matricium Drunk Elephant Protini™ Polypeptide Cream LANEIGE Watery Sun Cream Spf 50+ Pa++++ Martial Vivot Conditioner Murad Time Release Acne Cleanser Eucerin Complete Repair Body Lotion 10% Urea Mary Kay Timewise Age-Fighting Moisturizer Nakeup Face Ac Herb Mask Foam Stemm Black Fulvic Conditioner The Ordinary Mineral Uv Filters Spf 30 With Antioxidants Eucerin Advanced Repair Lotion