I was really desperate about this time last year regarding my hair loss. Even started thinking it was time to look for hair pieces or a wig. However after using the Keranique products, and specifically this regrowth serum, I could see a difference within 4 months! Now, after a year, I have a robust head of curls that I love, with confidence. I have recommended this to friends and especially my hairdresser to share with her clients!