For eyebrows and eyelashes. When I first bought it, my eyebrows were very thin because I had been overusing the tweezers. So, I experienced vitamin deficiency and all my eyelashes fell out. Once I got over the initial shock and since my eyes looked bare, I went and bought this specific serum. I should mention that I quickly corrected the vitamin deficiency, but the serum did things I didn't expect. I applied it for two months on my eyebrows and at the spot where my eyelashes are supposed to be. I woke up the next day and saw a hair in my eyebrows that I hadn't seen in years. Gradually, my new eyelashes started to grow back as strong as they were when I was a teenager. By the end of the two months, my eyelashes were at their best and my eyebrows had made a 180° transformation, so I bought it again and again about 6 times. Now, it doesn't give me much for my eyebrows since they have grown as much as they can with this serum, but I hardly lose any eyelashes as long as I keep using it. Of course, it's not for every day; it requires 2 months and then a break. Here on Skroutz, I found it for about 11 euros and 25 euros. Personally, I highly recommend it when you don't have alopecia. There must be follicles present, otherwise, how would it work?