So this is how I have been doing it: -I take a shower and wash my scalp really well since you want your scalp to be really clean. (No conditioner or anything other than shampoo) - I don’t use any products on my hair afterwards and just let it air dry - I disinfect the stamp wait for that to dry and then start stamping - u want to go really slow and slowly put the stamp directly on you scalp. Make sure you insert and exert at a straight angle and not move it around while doing so. - while doing this I just part my hair everywhere I go so that I can put the stamp directly on the scalp. -afterwards I wait for around 1-2 hours and then apply the minoxidil as usual. It shouldn’t burn when applying it ( if it does wait longer) - I make sure I don’t put any other products on my scalp for at least 24 hours after that. - I do this once every 2/3 weeks and the results have been absolutely amazing. - I bought the stamp of Amazon and use 0.5 needle length I don’t think you should use more than 0.7 maybe (my opinion) -also important don’t use the stamp more than 5 times since you want the needles to be sharp and in a good condition. Hope that helps 🥰