A Korean vegan protein hair treatment from Nesh — important to note upfront: this is a protein repair treatment, not a traditional conditioner. Protein treatments work by filling in the damaged gaps in the hair's cuticle layer to restore strength, reduce breakage and improve elasticity; they feel lighter than silicone-heavy conditioners and are most effective for chemically processed, heat-damaged or high-porosity hair. Built around Nesh's patented Soy Biome complex at 9,700ppm — Lactobacillus-fermented soybean — plus a full B-vitamin complex and prebiotic sugar system. Vegan. Has fragrance. 250ml.

• Soy Biome — Lactobacillus/Soybean Ferment Extract 9,700ppm (Patented) — the hero active; soybean fermented with Lactobacillus bacteria, which breaks down the soy's large protein molecules into smaller fragments that can penetrate the hair cuticle more efficiently than unfermented soy protein; fermentation also produces new bioactive compounds (isoflavones, peptides, organic acids) that nourish the scalp microbiome while the proteins repair the hair shaft; at 9,700ppm this is a meaningful concentration, not a trace
• Triple Protein Repair — Hydrolyzed Soy + Wheat + Vegetable Proteins — three complementary hydrolyzed proteins that penetrate the hair cuticle at different molecular weights; hydrolyzed soy protein is rich in isoflavones and amino acids that rebuild keratin structure; hydrolyzed wheat protein strengthens and smooths the cuticle surface; hydrolyzed vegetable protein provides a broad amino acid spectrum — together they address cuticle damage from multiple structural angles
• Kimchi Ferment — Leuconostoc/Radish Root Ferment Filtrate — derived from the same fermentation process used to make kimchi; Leuconostoc bacteria fermented with radish root produces a naturally antimicrobial and probiotic-rich filtrate; it supports the scalp's beneficial microbial balance and acts as a gentle naturally-derived preservative — an unusual and distinctly Korean ingredient that bridges the brand's biome philosophy
• Prebiotic Sugar Complex — Fructooligosaccharides + Xylitol + Xylitylglucoside + Fructose + Glucose — prebiotics feed the beneficial bacteria already present on the scalp and hair; fructooligosaccharides are one of the most studied prebiotic fibers; the xylitol-based molecules provide additional moisture-binding and antimicrobial support; this complex is the "Biome" part of Soy Biome — working at the scalp microbiome level to create an environment where hair can grow and thrive
• Biotin + Vitamin B12 (Cyanocobalamin) + Vitamin C + Panthenol + Tocopherol — complete hair-supportive vitamin complex; biotin (vitamin B7) is one of the most widely recognized nutrients for hair health, supporting keratin production; B12 supports cell metabolism at the follicle level; vitamin C aids collagen synthesis in the scalp; panthenol coats and conditions each strand; tocopherol (vitamin E) provides antioxidant protection to the scalp skin

After shampooing, apply evenly to mid-lengths and ends. Leave on for 3 minutes — do not rush this step, as the proteins need time to bond to the hair cuticle — then rinse thoroughly. Best used 1–2 times per week for damaged hair. For best results, pair with the Nesh Pomegranate Biome Scalp Boosting Shampoo. 250ml.

Korean haircare at Olive Kollection since 2018 — free shipping on orders over $40.