Common causes of hair fall include androgenic androgenic alopecia, fungal infection, nutritional deficiency, alopecia areata, and cancer chemo/radiotherapy. Treatment depends upon the cause, but the most common cause in young male is androgenic alopecia. Advice 1. Minoxidil gel 5% (Tugain gel) – 1 mL twice daily for 12 months 2. High protein and vitamin rich diet such as eggs, meat, vegetables, cheese etc. 3. Avoid mental tension as anxiety/depression aggravates hair loss 4. You can take Revital capsule once daily temporarily to correct any nutritional deficiency 5. Hair transplantation/hair wig is also an option for you Minoxidil starts showing effect after 6 months of continuous treatment. No shampoo is available to prevent hair fall. Thanks