If you take a zinc supplement what will be the dose of zinc you have to take that maybe lead to copper deficiency?and what dose of copper supplement may cause darkening of the skin?

If you are eating a usual mixed diet, there is no need to zinc supplement. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV vaccine. Wish you good health! Safe sex: https://www.hopkinsmedicine.org/health/wellness-and-prevention/safer-sex-guidelines