I'm using bio skin too
Put bio oil
Qv lotion
Palmers
I use cocoa butter during my 1st and 2nd trimesters. Bio oil during my last trimesters. Only on my tummy and buttock area. Initially stretch marks appear at my buttock area but it go away after awhile I apply. And after I give birth I do not have stretch mark. And I use crab tree & Evelynne for the rest of my body daily.