I understand F&P can not be biased on a specific brand, but any details, study links on Test booster ingredients would help a lot. (fitnessandpower.com)
Optional booster ingredients: flaxseeds, chia seeds, wheat germ, walnuts, protein powder, butter, spices (ie: cinnamon, nutmeg, allspice, cloves) and / or fruit (ie: chopped apple, pear, raisins, dried cranberries) (datewithyourplate.com)