I ordered the serum twice, and it works incredibly well! I've never had such long lashes in my life. Plus, it's so long-lasting—one bottle lasts for months, even with twice-daily use. I can wholeheartedly recommend it. You can't go wrong with this one!

I've tried so many other eyebrow serums, but none could match Sins 'n Lashes! I finally have my dream eyebrows! The serum is super well-tolerated, with no side effects at all. My family and friends have also repurchased it. I can definitely recommend it!

At first, I was skeptical because Sins 'n Lashes is heavily advertised and has almost too-good-to-be-true reviews. But—they are well deserved! The two serums completely blew me away. No weird discoloration on the lash line (like with other serums) and finally full, thick eyebrows! I'm totally in love and will keep repurchasing it.

I would buy this serum again and again! After just three weeks of using it once daily, I noticed a significant difference. My eyebrows have become darker, and the small gaps I had before are no longer visible! As a result, my brows look much fuller and absolutely amazing.