do you have to use somthing from a store to care for your skin?

my mom thinks im still a litle girl (im 13), so she wont buy me any beauty products. so, what are some home made skin care regimens that I could, like do in my room or while im in the shower?

anti ageing products speeds up cell proliferation rate?

i've heard of some beauty products which increases cell proliferation rate to reach that youthful and soft skin, and when used for a long period of time, u will use up the cell's growth cycle and ur skin age more prematurely than if u don't use such creams. i am 20 and have being using a new beauty product recently, and have found my skin 'renewed' more quickly then the previous product that i was using. i noticed a lot of dead skins on my face and raw sensation when i just started using the cream. i would also like to know if using anti aging/wrinkles beauty products young would harm ur skin.
thanks

Is it possible to make and sell homemade skin care products?

Is it possible to sell homemade skin care and beauty products (for example, face wash) on eBay or a similar website as long as I list the ingredients? Can this be done some how? Any first hand advice? Thanks!