in formulating a product we can control most parameters and select raw materials to avoid conflict with prop65. I am finding it difficult to get my head around heavy metals which, arguably, will be found in most cosmetic products complying with industry regs. The majority of HM have a safe harbour level, some do not (nickel for example). Does this mean almost every cosmetic product should have a Ni based Prop65 warning? Or, is it unrequired if the product complies to safe cosmetic standards? Whats an acceptable max quantity?
Please advise a somewhat frustrated aussie, many thanks.