Hair Restoration News: Lactate Influences Hair Follicle Stem Cells. New study suggests that Lactate may influence hair follicle stem cells in a dose dependent manner. What is Lactate? Lactate regulates human metabolism and is known for being able to stimulate collagen synthesis and vessel growth. Lately it has been shown that lactate, in vivo, may have a role to play in the proliferation of stem cells. Click Lactate Influences Hair Follicle Stem Cells for complete coverage on this topic and our community discussion.