Hi ladies
I have was on tamoxifen for 5 years and 6 months ago was changed to letrazole for another 5 years. Since taking letrazole my hair has become so thin. I can't find enough info out there whether it's safe to take Collagen . Every one I ask don't seem to know. My breast cancer was HR positive so loves estrogen. Is anyone taking or know anything about Collagen supplements when you have had breast cancer ? Xx