Vichy Dercos Shampoo Made My Hair Worse

I was really excited to try the Vichy Dercos Anti-Hair Loss Shampoo, but it has been a huge disappointment. I’ve been using it for 20 days now to help with my severe hair loss. After getting my initial tests done, I discovered I had an iron deficiency, which was corrected after 3 months of medication. However, even after starting this shampoo, my hair loss hasn’t improved at all. In fact, my hair has become dry and tangled like straw—it's nearly impossible to brush or manage. Using this shampoo has made me feel like I'm battling with my hair every day. I honestly don’t know what to do anymore, and for such an expensive shampoo, it's frustrating that my money has gone to waste. 🙄