"Received samples of 5 different products from Syntholan Technologies. They state that is is the best quality pharmacy products, have all the labs tests, etc. So I was really interested to try. I've used 6-7 different other brands before and was very disappointed, because usually other companies sell products from which you don't feel anything, just using simple test. propionate or simple oil. Syntholan really made me feel different. After few week usage I've noticed that I can lift more weights and train much harder in the gym. All in all, satisfied with the products, thanks!"