1ml 2 time a day. Leave in on the scalp. If you are using minoxidil, apply spiro 15 minutes after appling minoxidil. The 2% Spiro is easier to apply to the scalp, just part your hair and apply. Do this over your entire scalp. 5% cream is best to apply on thining areas such as your hairline and crown.
Using Nizoral shampoo daily or every other day. Let it soak in 4-10 minutes before rinsing off for maximum effect.
The stack that works for me is:
1. Azelaic Acid 5% + Minoxidil 5% - 1ml 2 times a day
2. Topical Spironolactone 2% - 1ml 2 times a day
3. Nizoral Shampoo 2% - Every other day
4. Polysorbate 80 Shampoo - Every other day