When should I start using belly balm to prevent stretch marks?

Immediately! Bio oil and mama bee belly butter by Burts bees are the best! Make sure to keep your belly hydrated always. Also, you can get a belly belt when you get further along, it helps to prevent stretch marks when the baby starts to drop. I kept my skin moist my first pregnancy and didn't get a single stretch mark until the day I was due (my daughter came 6 days later) and I hadn't got a belt like my mom had suggested. They do fade for the most part but just for extra precaution! 😉

You should start now and I'm not sure which brand is best but I've heard great things about palmers stretch mark lotion and I think they have a balm as well

bio oil actually isn't safe while pregnant. though they advertise it there's an ingredient that isn't safe for pregnant women

I use tummy butter by Palmers it works so good . target and walmart has it.

Bio Oil isn't terrible just use in low amounts but you shouldn't use it a lot. I didn't like Palmers that much but it does semi work but I do like the brand Mustela.

I just use Aveenos baby lotion works like a charm skin is soft took away my rash and not one stretch mark