LR is one product I will use forever as long as Ms. Sue continues making it. I started using it about two years ago and when I grew my hair out long it was mainly due to LR. I was never consist with my hair vitamins so I knew it was LR. I did get soreness on my scalp but I also noticed huge growth spurts during that time so I associated the soreness with growth. I used the pommade for a while and just started using the oil now to grow out my cut. One would have to give this product a try alone to know if it is working, using a bunch of other things at the same time will never give you a good assessment as to if the product is good for you or not.
Also there is something in the product that makes your nails grow longer. My hands are constantly in my hair and touching my scalp and my nails grew in beautifully as well.