I've Used For A Few Months And This Is What Ive Learned. . .
While I don't use the shampoo or conditioner (didn't care for it, did not really leave my hair feeling taken care of and I have my own Shampoo & Conditioner that works great for my hair), I love the leave in spray and treatment tub (the tub is what you should really focus on). I used the tub as directed in the beginning (I suggest you do what I did and buy 2 tubs at once because it can go fast). Every time I washed my hair (several times a week), I used the tub  between shampooing and conditioning, making sure I messaged it into my scalp for the full 5 minutes before washing it out. Honestly, I noticed a change in my hair soon after, it started to fall out less and became much stronger and shinier. After you notice a change it says to only use once a week in order to keep hair strong and healthy. I now use it during my weekly hot oil treatment and deep conditioning routine for Wednesdays. My hair is doing great and I recommend that you also take up hot oil treatments and deep conditioning with this product if you are not already doing so, especially for people of color, I'm trying to grow my hair out and its never looked or felt better because of my new nourishing and hydrating routine. I should note the tub doesn't necessarily grow hair but it does nourish the scalp making it healthy and in return allowing hair to grow in the fastest, strongest, and healthiest it can. There are no miracle products that are going to grow you inches of hair in no time at all (hair grows a max of .5 inches a month) but you can make sure that .5 inches is strong and healthy hair. Its going to take months to grow your hair regardless of any products you  may use so you might as well make sure you hair is healthy while you patiently grow it out.
Rating: 5 stars