Rapid Lash is a lash treatment that's supposed to enhance and boost your lashes to make it look fuller, longer and healthier. In a lot of instances, your lashes will actually grow. The key ingredient in it are the bioengineered peptides that are essentially the amino acids (proteins) that nourish the lashes. There is also hyaluaric acid, biotin and other goodies in it that promotes lash growth.
Rapid Lash
They claim that it takes about 4 weeks or so to see results. I saw results in 2 or so weeks... I've never done anything to my lashes aside from wearing or not wearing mascara s but it was really effective for me. Once you stop using Rapid Lash, the results last for about 2 months, according to their claims.
The application was really easy. It looks like your simple eyeliner but the serum is clear and does not dry or cake on top of the lash roots. I didn't experience any stinging or tingling but they do warn on their site that some people have reported a tingling sensation. You just swipe it over your lashes at night only and only one application per night is needed. No more than that. One tube lasts 2-3 months. I only applied on the top lashes. There were days I forgot so I applied it on the following night before bed.
Here are some before and after photos.

