Minoxidil Topical Aerosol, 5% is for use only by men. Minoxidil Topical Aerosol, 5% may be appropriate for you if you are a male at least 18 years old and experiencing gradually thinning hair or gradual hair loss on the top of the scalp. It is not intended for frontal baldness or a receding hairline. The common inherited thinning or hair loss process begins slowly and may become noticeable only after years of gradual loss. Minoxidil Topical Aerosol, 5% is for men with hair loss or thinning hair that begins on the vertex of the scalp.