I was thinking about using this on some spots on my eyebrows too. Have you seen any positive results since you've started using it?
Today is exactly a month since i have started Rapidlash and I have not missed a night of application. My lashes were long to begin with so honestly I see no big difference. They are 100 times stronger though. I hardly loose any lashes and they curl much better so mascara looks really great.
As for my brows, the spot that is totally bare (from a piercing), sprouted a hair or 2 but nothing crazy. I've been applying it to my entire brows and they are thicker and I like the effect. I already have a backup tube in the closet.