Can you help me design humans that naturally grow green hair?

Is there any chemical that is biologically produced in humans, that when impregnated in hair follicles, produces green hair?

If current keratin follicles cannot do that, pick another biochemical for hair follicles and try again...

I assume that making new proteins, like Chlorophyll, is harder than impregnating hair follicles with things that are already produced by humans, like urea, or blood...

An environmental explanation.... like a high-copper environment, is ranked by side-effects, and permanency. Permanency is worth more points than no-side-effects...

'Points' is currently metaphorical, but that can change in tune with viewer responses.

Side-effects from the process are expected, but less side-effects will make a better answer.

----------------------------------------------------------Objective----------------------------------------------------

Designing a human that grows green hair, naturally, while staying as close to real humans as possible?

posted about 9 years ago

Malady‭

-2 reputation 19 0 -1 0