I've never heard of progesterone cream causing hair loss. Hair loss is sadly... it can make a sort of "gunk" that blocks the hair follicle, low thyroid, iron deficiency, or heredity.
Source NaturalsNatural Progesterone Cream, 4 ozby
progesterone cream features natural progesterone USP from soy. Our progesterone cream is guaranteed to contain... mg of progesterone per ounce
Also contains aloe vera, wild yam extract, natural vitamin E, lecithin phospholipids...