A lightweight, fast-absorbing scalp serum designed to minimize the visible appearance of gray hair, reduce hair loss, increase hair density and promote healthier hair growth.100% of participants experienced an increase in hair thickness, making the scalp less visible*.76% of participants experienced a decrease in the growth of new gray hairs*.70% reduction in visible hair loss*.*Compared to baseline in a 90-day study with 30 participants who used the product once daily.Application: Apply 2-3 pipettes of Care Density Serum directly to your dry or freshly cleansed scalp as required. Then massage the serum well into your scalp and, importantly, do not rinse it out again afterwards. Ideally, you should use the product every day to achieve the best results.