Using vitamin a supplement (as a capsule), does it make the skin fair?

Doubtful: Acute overdose will cause blurred & double vision, nausea, vomiting, dizziness, drowsiness & increased intracranial pressure, a dangerous elevation of the brain fluid pressure causing headaches, seizures and even death. Chronic overdose leads to skin cracking, hair loss, light sensitivity, and optic nerve damage from pseudo-tumor.

Good in moderation: Normal doses of vitamin a are good for skin health and are the basis of all retinoid regimen.