Stop using any product or ingredient that is a carcinogen, tumour grower or suspected carcinogen. Conventional deodorants, antiperspirants and household cleaners come to mind.
For hair loss/thinning, it's very important to stop using Sodium Laurel/Laureth Sulphate SLS SLES, as this is the most common cause of hair loss outside of male pattern baldness.
I carry over 500 essential oils, resins, absolutes, extracts and dozens of enriching, infused and carrier oils, making Anarres Natural Health the most ethical and local source for essential oils in Toronto.