no products will work on ur stretchmarks hun- if ur gonna get em ul get em - theres some lucky ladies out there - but i certainly wasnt one of em lol! im still covered in em now and ethans 17months old!! theyre my mummy marks tho lol so i dont care about them!
as for them being itchey - mine used to itch like mad and i quite often drew blood for scracthin!!

just bath ur tummy in cold water - it will take away the itchey feelin