Features:1. Promote Healthy Hair Growth, The Smart Way - Thicker, stronger, more healthy-looking hair is not just a matter of genetics, its a matter of nutrition too. 2. With this wonderful biotin hair strengthening serum, you can finally help give yourself the dense and lustrous hair you always wanted.3. Premium Quality Ingredients - When it comes to our skin and hair care products, we firmly believe there is no room for cutting corners. That is why we make a point of using nothing but the finest, carefully selected ingredients.4. Easy To Incorporate Into Your Daily Hair Care Routine - For the best results, apply to slightly damp hair after washing or rinsing. Work a quarter-sized amount of product into palms and massage into your scalp, working from root to tip of hair using your fingertips.5. Sit back and relax as your hair fully absorbs the serum and all the nutrients that come along with it.Specification:Net Weight: 10ml,20ml,40ml Notice:Due to the different monitor and light effect, the actual color may be a slightly different from the picture color. Product quality is guaranteed The best gift for your couple Under the light, the color will be slightly different, if you have any questions, you can contact our customer service, thank you In general, our products arrive within 7-10 days, please be patient info:We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.See our disclaimer