Use the dropper to apply a few drops directly onto the scalp in sections — focus on areas where hair feels thinner or the roots need support. Massage gently with fingertips for 30–60 seconds to distribute evenly and stimulate microcirculation. Do not rinse; the leave-in format lets the actives stay on the scalp where the follicle sits.
Frequency: most people apply once daily (morning or evening) or every other day. If you wash hair less often, you can still use it on non-wash days — just part dry hair and apply to the scalp. A 150 ml bottle typically lasts 2–3 months with daily use on the whole scalp.
Tip: apply to a clean scalp for best absorption. If you use styling products, apply the serum first, let it absorb for a few minutes, then style as usual. Avoid eye contact; rinse thoroughly with water if it happens.