Tips for making baby girls hair grow thicker please?

When washing it if you massage it supposed to stimulate it i don't know how true it is i used Google and my daughter hair started growing faster.. plus my 9 month old son his hairs growing fast we just use baby shampoo

So I spoke to my hairdresser once about different thicknesses of hair, and it's mostly genetic. If you and your partner have thicker hair then your baby is more likely to have thick hair. There's not a lot you can do to actually make it thicker, but obviously if you have naturally thinner hair then, minimal heat, hair products and dyes to stop it getting thinner.

@Jayde thanks we both have thick hair but her hair seems thin at the moment.

My hair is like a 🦁- very very thick hair in the family - but baby has about 2 hairs 😂