Injecting chlorophyll into your skin would make you get a really nasty sunburn from any light source (even indoor lighting). Fortunately, animals evolved to avoid absorbing chlorophyll from our food, so you can safely eat green vegetables. read more
It would probably be most feasible for chloroplasts, along with the required genes, to be added to skin stem cells and applied as a skin graft, as there is a lot of research in this area for burns victims. read more