The bottle makes it look like something you would put in the engine of a car. I still don't see anything in the ingredients to show that it would be worth buying, maybe someone more experienced with supplements could answer this better than I could.
Ingredients: Water, Tribulus Terrestris (Viraloid), Dextrose, Arginine Peptide, Tribulus Extracted Sterols, Magnesium Gluconate, Natural Flavours, Zinc Sulphate, Vitamin B6, Sodium Benzoate, Brilliant Blue 133.
So ''Tribulus Terrestris'' is the ingredient that is supposed to increase testosterone levels, however, some studies have proven otherwise.
http://www.ncbi.nlm.nih.gov/pubmed/15994038 http://www.ncbi.nlm.nih.gov/pubmed/10997957