so in 2016 i noticed that my thick hair became very flat and thin. I thought it might return back after a haircut but after few months waiting my to grow back it was thin again. im now 22. I Im currently using vitamins pills for the last 2 months and just started using L'Oréal elvive hair thickening shampoo. Will that help restore my hair back to it its thick original condition? If not, what else can i do?
