Am I making myself worse?

hello,

looking for some help please! over the past couple of months I have been trying to stop/reverse my premature grey hair through diet and supplementation but the more I read the more I find how each supplement antagonizes each other which can cause further problems. I don't feel any better in fact I feel nauseous and my grey hair seems worse even though its early days. I am concerned about heavy metal toxicity but admit I know very little about it here is the supplementation I am taking mainly for grey hair:

-b-complex (stresstabs)(overall wellbeing/hair)
-kelp 1000mg(iodine)(for hair)
-probiotic (for previous Antibiotic use)
-iron (I have a ferritin/iron deficiency)
-copper sebacate 3mg elemental (for hair)
-zinc 125mg (I have Acne also for hair)
-vitamin c 1000mg (for hair)
-fo-ti 560mg (for hair)
-PABA 500mg (for hair)

Is this a normal combination or could I be making things worse. I was considering dropping supplementation and getting hair dye instead but I noticed the rare hair growing dark.

Thanks