I don't know folks but I have a 12 year old nephew that has always expressed an interest in everything that I make. He has made jewelry for his mom as well as a tiny bunch of beaded forget me nots. I know there are no chemicals involved in jewelry making or beaded flowers but his younger brother of 7 has expressed and interest in learning to make soap and I don't see any reason not to teach him at 12 years of age. It's not complicated and these guys are fast learners, very attentive and follows instructions very well.. I know I could have made soap at 12 as I am sure that is true for everyone on this board. The only reason we didn't is because we weren't exposed to it. It's usually pretty easy to tell if a child is truly interested or if it's just one of a million things they show interest in. I have learned from working with my nephews that they are patient, attentive and dedicated while working on a project that they really enjoy. So, I will be the odd one and say...Yes, I wouldn't have any problem instructing a 12 year old in soap making or cosmetics:D If there is a newbie soap challenge this year, now the newbies know where to get everything all in on place! that's pretty neat:D