Skin care ! stretch marks =( have you ever used palmer's?

hi every one did any one ever used palmer's products ? i've just bought the lip palm / the cocoa er formula with vitamin e it's written that it softens smoothes & relieves dry skin / the body gloss it's awesome for short dress's =P and the firming lotion does it really work ? i have stretch mark's all over my coz i've lost weight went from a c cup to a b cup =( i also have them on my tummy .. you can say that i have them all over my body =/ so does those products really work ? i'm just 16 should i start using them from this age ? and do they have any bad side effects ? P.s i've a reallllyyy white skin will darken it ? coz most lotions do ? and do you recommend any other products that help to cure stretch marks ? thanks !