Doctor Heiler's leave-in hair growth serum, enriched with nettle extract and niacin (vitamin PP), is a powerful solution for hair loss and scalp health. Formulated by dermatologists and trichologists, this revitalizing serum nourishes and hydrates all hair types, promoting thicker, fuller hair. Nettle extract provides essential vitamins (K, B1, B2, C), minerals (magnesium, iron, copper, silicon, calcium, manganese), and tannins to combat hair loss, premature graying, split ends, and regulate sebaceous glands. Niacin expands peripheral blood vessels, improving oxygen and nutrient delivery to hair follicles, stimulating growth. Hyaluronic acid intensely hydrates the scalp and follicles, boosting collagen and elastin production for improved metabolism and circulation. Panthenol and silk proteins provide long-lasting moisture, create a protective barrier, reduce static, and enhance shine, volume, and manageability. Essential oils of lemon, neroli, and rosemary offer antibacterial, anti-inflammatory, and regenerative benefits. Suitable for both men and women with normal, dry, combination, or oily scalps, this silicone-, sulfate-, paraben-, and synthetic fragrance-free serum is ideal for daily use and preventative care. Experience the Doctor Heiler difference – healthy, vibrant hair from root to tip.
US: temporary delays — postal services aligning new import rules, 
EU: 1–2 weeks, 🌍 Worldwide: 1–4 weeks ✈️