before i release it on the market i make sure that it has to be effective and ive been using this for 3 weeks and see the results .. the hair tonic 20% minoxidil it can can be use my man , woman and and anyone you can now apply it on the desired area like eyebrows beard É 1 bottle is good for 1-2 months depends on the area u apply -maintain and strengthen the hair and the roots -Prevent hairloss -stimulate hair growth