Some of them do. Actives that can stimulate eyelash growth are prostaglandins. Different kinds of prostaglandins are used in eyelash serums (isopropyl phenylhydroxypentene dihydroxycyclopentylheptanate, dechloro-dihydroxy-difluoro ethylcloprostenolamide and others). They can work, but please be careful they also can have side effects. Many eyelash serums that do not contain prostaglandins, and those can't really do much for eye lash growth.
What would the side effects be?? Is there anything that you would recommend? Thank you
I have been trying NYK1 Lashforce Growth Serum for about two months and it definitely worked for me. I haven't noticed my lashes getting denser or more numerous but they've become much longer and I'm very pleased with the results.