A former supervisor recommend this after I complimented her eyelashes. She was late 50's and her eyelashes were long with natural upturn. She wore minimal mascara. I was envious. Recently (two weeks ago) I purchased, received and started using NuLash as directed. Yesterday morning I noticed my eyelashes, top and bottom, are longer. My mother (who doesn't know I'm using this) remarked on my giraffe-like lashes. This product is very effective. Easy to apply and well worth the price, I am extremely happy with NeuLash. My lashes are starting to curve upward like when I was a teen/20ish. Now I'm 52 - it works.