Hello and welcome to healthcaremagic. Thinning and receding hair line in males is classical of Male pattern Androgenetic Alopecia (MAGA) also simply known as Androgenetic alopecia. Scalp hairs are genetically programmed for progressive thinning under the influence of hormones (Testosterone). Hair loss has a pattern to it in these kinds of hair loss e.g Teens usually have some Temporal recession which is then followed by deepening of Temporal recession (the earliest stage of Male Hair Loss) leading further to early hair loss in the crown (vertex) and later to further frontal hair loss and enlargement of vertex and so on... By this time people usually become concerned about their receding hair line. Androgenetic alopecia is the commonest type of hair loss in males. By the age of 30 years almost 30% of males have this kind of hair loss and by the age of 50 years almost 50% of males have this kind of hair loss. Treatment modalities include Topical Minoxodil 5% solution and oral finasteride. Their are well controlled trials and US FDA approval for them for this kind of hair loss in males. I would advice that you consult a dermatologist and get a prescription for this type of hair loss regards