I couldn't grow my hair as an adult because I used so many damaging things in my hair in my younger days therefore my hair just would not grow ..I 1st started using the extra strength oil in November of 2023, I am so happy to say that this REALLY is working, my hair has grow at least 3inchs probably more! I would NEVER say something work if It didn't! I will continue my journey with this oil.....TBC I wasn't tracking my growth at first, because I could see the difference right away within a few weeks...I will also say, consistency is the key, 3 to 4 times a week, be sure to massage your scalp for stimulation....I LOVE LOVE LOOOOOVE THIS OIL!