Key Benefits

• Helps prevent a root cause of hair thinning by supporting a balanced growth cycle.
• Promotes scalp health and a resilient microbiome for optimal follicle function.
• Encourages thicker, fuller, and denser hair with targeted active ingredients.

Your scalp ages just like the rest of your skin. But instead of lines and wrinkles, the accumulation of senescent cells impairs how your hair follicles function, leading to thinner, weaker strands over time.03-05

OS-01 HAIR was developed to target this issue at the root. It’s the first and only scalp serum powered by the OS-01 peptide, scientifically proven to reduce cellular senescence—a key driver of age-related hair thinning.02,09

When tested on senescence-induced cells in the lab, OS-01 HAIR significantly reduced senescence, reinforcing OS-01 HAIR’s potential to address one of the core biological processes behind age-related thinning and hair loss.03-09

Just like healthy skin supports better texture and tone, a healthier scalp sets the stage for stronger, fuller hair.

Apply 1 mL of OS-01 HAIR serum to the scalp once or twice daily (morning or evening), massaging in with fingertips and leaving on without rinsing. For even greater absorption, use on a clean scalp after dermarolling.

Water, Glycerin, 1,2-Hexanediol, Butylene Glycol, Hydroxyacetophenone, Panthenol, Inulin, Helianthus Annuus (Sunflower) Sprout Extract, Cellulose Gum, Alpha-Glucan Oligosaccharide, Tetrasodium Glutamate Diacetate, Propanediol, Morus Nigra Leaf Extract, Arginine, Acetyl Tyrosine, Rehmannia Chinensis Root Extract, Pentylene Glycol, Sodium PCA, Erythritol, Chondrus Crispus, PEG-12 Dimethicone, Oryza Sativa (Rice) Bran Water, Decapeptide-52*, Calcium Pantothenate, Zinc Gluconate, Sodium Benzoate, Niacinamide, Ornithine HCL, Caprylyl Glycol, Polyquaternium-11, Citrulline, Hydrolyzed Soy Protein, Xanthan Gum, Glucosamine HCL, Disodium Succinate, Fisetin, Raspberry Ketone, Sodium Benzoate, Citric Acid, Potassium Sorbate, Arctium Majus Root Extract, Panax Ginseng Root Extract, Biotin. *OS-01 Peptide.

Orders are processed within 1–3 business days, depending on availability and credit card authorization. After processing, your order will ship at the speed you selected during checkout. Please note we don’t ship on weekends or major holidays, and shipping timelines may be affected by the carrier.

Once your package is scanned by the carrier, tracking information will be sent to you by email or text message. Please allow 24–48 hours for tracking details to update.

While we ensure satisfaction, we don't accept returns on any products or supplements. If you have any concerns, please email us at shop@jamesclinic.com, and we'll work to resolve them with you.