As the above posts show, All test boosters boost test, wether by freeing up testosterone or increasing LH, I see the best results personaly from phytoserms, hcgenerate, daa, and sometomes i pulse aromasin. They look similar but on a scientific level they are not, the best way to see what works is often to google, and type... for example, hcgenerate reviews, unleashed reviews... dont let people push products on you... you decide from experiences what looks worthwhile.