I am using the brinton well grow hair serum on the recommendation of my dermatologist, for past 2 months. Expensive serum!!! To be honest, this serum doesn't make hair denser within few weeks. One needs to be consistent in applying it daily to see results after 2 months, approx. It helps in diffused thinning issue, as in my case. Also, it is not effective in restoring the hair line. Receding hair line is a genetic issue. In my case, the area in the middle of head ,which previously looked lighter is becoming darker or denser, upon using it for last 2 months. I use it once in a day, alongwith minoxidil solution at night. Will use it for another 9 months to see good results. Overall a good serum for hair Let's see! 🤞