Whenever your locks are really tight, together and strong - fully developed - without many loose ends anymore, you can just use KBoy for maintenance after that . Its just for giving them a little help in the first year or two, keeping them together so they lock faster, getting the loose hairs in, etc. You may just want to smooth down the frizzes with it every once in a while, or use it to condition them against breakage and brittleness. That’s a good thing to keep doing, too.