Any nesassery to use sun screen cream with meladerm

It's essential to use a sunscreen with any skin lightener whether it's Meladerm or another brand. You have to protect your skin from the sun and from re-darkening. SPF 30 or higher.

Yes its definitely necessary to use sunscreen.. even when its not sunny outside. How is meladerm working for you? I used 2 bottles once and it didn't do a thing!