I'm having fairly significant hair loss. my tsh levels are normal, stress is low, all blood tests are normal and am taking biotin and collagen to strengthen my hair. what else could i be missing?

Hair loss as people get older especially in mid-life is not uncommon and not necessarily due to disease. When we make less new cells than the cell turn- over in the body, we call that - aging- And all cells tend to be affected including the Skin and Hair Cells. The Dermatologist or the Skin & Hair Beauticians can sometimes help. But not to worry, One is still very valued and Special.