No the serum is lightweight and meant to absorb into the hair.

Yes, men can not only apply it to their hair but their beards as well.

It depends on how often you are using it, just on a weekly basis as proper leave-in treatment or on a daily basis after styling your hair, but in general it should last you 1.5 month.

We suggest continual weekly use to maintain results.

We suggest talking to your Doctor as to what is safe for you to use. However our hair serum is made without chemicals, silicons, or drugs. We are also natural and vegan.