go see a dermatologist to get checked whether you indeed have AGA or not via trichoscopy. you will likely need finasteride/dutasteride + minoxidil if you have AGA. Finasteride/Dutasteride to stop further progression of balding and minoxidil to regrow what you had lost. If finasteride does not cut it then dutasteride, if that also does not cut it then have to shave it off. ldeally topical for minoxidil and oral for finasteride/dutasteride. This text is not a medical advice and a substitute for an evaluation by a professional, keep that in mind. First above all, discuss using tretinoin with topical minoxidil 5% for boosting its efficiency with a doc too and if you get a green light then apply the tretinoin cream to areas you would apply the minoxidil, wait 15 minutes then apply the minoxidil spray over the thinning areas and rub it for 10-15 seconds and distribute it to the thinning zones for maximum efficiency. If you suspect that minoxidil that you would get in Thailand is fake you can use sodium hypochlorite, it typically speaking yields an orange color when comes into contact with legit original minoxidil powder though exercise caution and conduct this in a well-ventilated area, not that it would yield toxic fumes just be careful. If you want to hope on the oral minoxidil, do it not without seeing a cardiologist and getting a baseline measurement of your systolic-diastolic Blood Pressure (BP) the Heart Beat (HB) range. Any significant deviation from them for 2.5-5mg dose of oral minoxidil (eg 30-40mmhg) should mean that you should stop taking oral minoxidil, as it had happened to me, oral minoxidil does not fuck around.
ps:Bare-boned topical minoxidil is not really that effective without tretinoin.