For everyone trying the Macujo method, or a variation of it, I managed to find a hair care product with 3% Salicylic acid. Everyone seems to use acne treatment products that contain 2%, while mentioning there is a rumored product with 3%. The product is Dermarest Psoriasis Medicated Shampoo (plus conditioner). I picked it up at Walmart to implement it into my hair shampooing routine. I figured it couldn't hurt. -EDIT- Reflecting on this, it may not matter that it has an extra percentage. If you're using facial treatment, you can most likely apply it more generously to the hair than if you were lathering with shampoo. With that in mind, I believe you could potentially apply more SA to you hair in one session with the facial treatment product.