The secret of this new serum is its active ingredient - bimatoprost. In cosmetology it is currently considered as one of the most efficient compounds to stimulate lashes growth. Life expectancy for lashes is between 3 and 6 months and after that they fall out. Not only that, but they only grow within the first 30 days, and after that they become "stable" and they grow no further. It has been proven that bimatoprost works on lashes both in the initial stage by stimulating growth and also later when they are stable by prolonging their life. That is why there are always more lashes. According to the manufacturer the first effects (strengthening and easier brushing) should be visible after 3 weeks of regular use. To notice the full effect of enhancing and thickening the treatment should last for the full 6 months. After that, to sustain the effect serum should be used every other day.