Tend Skin or homemade equivalent ok for teenagers?

Yeah so you know from the heading… I’m a teenager… I heard that Tend Skin is great, but the homemade version is even better since it’s a lot cheaper with the same results of the commercial one. But is it okay for me to apply? I mean, aspirin is bad for children and young adults (see Wikipedia article: http://en.wikipedia.org/wiki/aspirin). But Tend Skin is only for topical application… you won’t eat it… So can someone give me an answer?

As long as you are not allergic to aspirin or its derivatives, this product is safe for you to use.

http://shds.org/uploads/Parents/Medical/Reyes%20Syndrome%20Information.pdf