Very irritating to my eyes
My daughter uses eyelash serum (another brand) so I though I would give it a try.  This serum has a menthol or eucalyptus scent to it and it was VERY irritating to my eyes.  They burned and stung and I had excessive tearing.  Keep in mind I wasn't putting the serum in my eye, but on my lashes.  But after 3 tries on different days I gave up and threw it away.
Rating: 1 stars