English: For damage control to take place and the lashes to grow back to their ideal quality, it typically takes 3–4 months. The first noticeable result will be an increase in lash length. Improvements in thickness and darkness will follow. You can see the full effects of serum usage by the sixteenth week of treatment. Eyelash serum should be used consistently for the first three months, twice a day. Reduce the usage duration to twice weekly, then once weekly on the weekends, until the improvement in your lashes is noticeable after three months. It is advised to cease taking the drug and seek out alternative forms of treatment if, even after three months, you do not see any change in your lashes.