Does The Pill Enhance Pigmentation?

If you are asking about hyper pigmentation of the face or melasma then yes. Exact etiology of melasma or hyper pigmentation of the face is not known. But it is said that exposure to sunlight increases the melanin formation and this can lead to hyper pigmentation. There is also role of a hormone called progesterone which is present in the pills. This hormone is responsible for the distribution of melanin on the face and nipples. Progesterone is also high during pregnancy and is possible explanation of of dark spots on face and dark nipples. Due to same reasons, pills can cause hyper pigmentation of the face.