Post natal hair loss

What are you ladies doing, if anything, to help combat post natal hair loss? I’ve had a lot of friends struggle with this and was thinking about starting some type daily collagen now to help with this when the time comes. Maybe hoping my body will respond so well before it goes through all the post natal hormones that it won’t be effected. One that I’ve read a lot about is modere biocell life that is pregnancy friendly. Any suggestions?