Nail Serum

A nail serum formulated for nails that need actual help — ridges, peeling, splitting, brittleness, the kind of damage that builds quietly over time. Uka's Nail Serum works at the nail matrix, the place where nails are actually formed, delivering hydration, keratin, and repair where it matters most. The formula is built around rice ferment filtrate — sake, essentially — alongside hydrolyzed vegetable protein, dill seed extract, olive bud extract, and ergothioneine, a rare antioxidant known for its cellular protective properties. The result is nails that are visibly smoother, stronger, and more resilient with consistent use. If you've been living with ridged or fragile nails and assumed that was just how your nails are — it might not be. This is the product worth trying. Unscented. Vegan. Pairs well with the uka Nail Oil for deeper results. WHY IT'S SPECIAL Targets the nail matrix: works where nails are actually formed, not just on the surface. Addresses ridges, splitting, peeling, and brittleness: formulated specifically for nails that have been through it — gel, damage, dryness, or simply aging. Sake-based formula: rice ferment filtrate brings fermentation-powered hydration and repair, a cornerstone of Japanese beauty. Key active ingredients: ergothioneine, olive bud extract, dill seed extract, hydrolyzed vegetable protein, and sunflower sprout extract. Vegan, unscented, and clean: no unnecessary additives, designed for daily use. HOW TO USE Apply directly to nails and nail bed as often as you like throughout the day — after washing hands, before leaving the house, at your desk, before bed. The formula is almost water-light and dries in seconds, so there's no waiting, no residue, nothing to think about. Just make it a reflex. For deeper results, pair with the uka Nail Oil — the serum repairs and strengthens, the oil nourishes and protects. DETAILS Nail serum Size: 10 mL / 0.34 fl oz Scent: Unscented Vegan-friendly formula Concerns: dryness, damage, brittleness, ridges By uka INGREDIENTS Rice Ferment Filtrate (Sake), Alcohol, Butylene Glycol, Water (Aqua), Hexyl Dimethylolpropionate, Hydrolyzed Vegetable Protein, Propylene Glycol, Benzyl Alcohol, Dehydroacetic Acid, Anethum Graveolens (Dill) Seed Extract, Sodium Benzoate, Caesalpinia Spinosa Fruit Extract, Phenoxyethanol, Helianthus Annuus (Sunflower) Sprout Extract, Ascorbyl Tetraisopalmitate, Glycerin, Olea Europaea (Olive) Bud Extract, Equisetum Arvense Leaf Extract, Ergothioneine. THE BRAND uka is a Tokyo-based nail and beauty house founded by manicurist Kiho Watanabe, whose obsession with the dailiness of nail care turned into one of Japan's most quietly iconic beauty brands. Every product is built around the idea that nails deserve the same attention as skin — thoughtful formulation, clean ingredients, and rituals that are worth repeating. uka is the kind of brand you find in the best beauty apothecaries in Tokyo and never forget.