@ruthbe I used the original products they came out with years ago before they were at Ulta or Sephora. I ordered the HG duo for anti-thinning ,the Miracle Hair Mask and the Intensive Spray. As a reference, I have shoulder length hair that's fine, a bit wavy and highlighted.
I don't remember much about the conditioners but the shampoo was like all shampoos I've tried that are supposed to help with hair growth - it dried up my scalp and made it flaky. I'm not sure why that happens because I have a fairly oily scalp, but it's happened with more than one brand. I don't remember anything bad about the spray, but I didn't repurchase so I guess I didn't see any benefits from it either.
I also ordered the heat protectant when I got the three barrel waver. It works fine, but it's a very wet spray so it's not my favorite on dry hair. I prefer it on damp hair before blow drying instead of using on dry hair before flat ironing or curling.
Most of their products have great reviews so it could be worth a try. It looks like they have a lot more products than when I first discovered the brand. Good luck if you decide to try.