How do I apply minoxidil?

Do i put it all over my head or just the thin spots? I’m Norwood 3 so my hair is still mostly ok

Rub it in the scalp in the areas in front where you lost the hair or it is thinning. Try not to waste if on your hair, as the hair is not a living structure, just the follicle below the scalp surface. Topical minoxidil works on only 40% of men because they are missing an enzyme that converts minoxidil into its active form, minoxidil sulfate. If you take oral minoxidil on doses less than 2.5mgs/day, 100% of the minoxidil works because your liver makes the conversion for you.