I have only included some of the well-known ingredients to treat PIH in the above graph but there is an incredible list of actives to treat hyperpigmentation and PIH from the usual suspects (above) to some incredibly sophisticated botanical extracts and peptides that deliver great results for hyperpigmentation gently and with limited side effects (when used over a period of time) so this list here is just for guidance. Above all, most of the above ingredients are easily accessible which does make things easy when looking to address PIH. If you want to know more of my thoughts on Hydroquinone, see an older post below.