Used Shampoo with Silicone, Now Have Hair Loss

Hi Please Doctor can you help me. I am a male 27yrs old. 2yrs ago i used a french shampoo which contained silicon. i do not wish to name the brand or company cause i dont know the legal implications. I had nothin wrong with my hair but it always used to be a bit dry after bathing so i decided to use this shampoo to try help it. I really regret using it now my hair is no longer thick and it keeps fallin out. 2yrs have passed now and i hoped it would stop but it seems to slowly be gettin worse. I know they say if something is not broke dont try to fix it and i really regret it now. Is there anything i can do to stop this and why do they let companies sell these things when they dont work and only make things worse. The shampoo said for all hair types and and no side affects please help me.

I doubt that a commercially available shampoo will cause hair loss. Instead, what you may be noticing is coincidental circumstance. Your hair loss may be due to genetic causes.