What are the best supplements on the market today?- In an effort to accurately and conclusively answer this
  most frequently asked question, the ProSource Research and Development Team has sanctioned what is
  undoubtedly the single largest bodybuilding consumer survey in the history of the sport. In total, over five
  thousand athletes were surveyed for their feedback, comments, and overall opinions of the top supplements
  on the market today. In addition, they sanctioned their own team of experts to further evaluate the science
  and efficacy of these supplements through extensive interviews with leading scientists and researchers, and
  through personal experimentation of each and every supplement included in the test. The final stage of this
  exhaustive project involved the corroboration of some of the nation's leading analytical testing labs, whereby
  high-tech precision testing procedures were employed to evaluate label accuracy and overall product quality
  control on randomly chosen products included in the test. The information and ratings you'll find featured here
  have been derived from what we believe to be the most accurate, straightforward, and unbiased source in
  the world. That source is "you", the bodybuilding consumer. 

ABOUT OUR RATING SYSTEMS 

  The following is a list of the products that have received the highest overall ratings through the most recent
  consumer feedback surveys. The consumer survey forms include rating scores for different areas including
  product quality, product performance, flavor, value, and total satisfaction. The ratings featured within this
  section represent the overall total for a particular product. When using this rating system as a guide to
  choose products, keep in mind that the margin of difference between three and four stars may be relatively
  small. In some cases, such as the powdered products, the difference between three stars and four stars may
  have been due more so to flavor and solubility than to overall performance. The bottom line: All products
  featured in this section are considered standouts in their respective product categories. 
 

Rating Scale
Outstanding	*****
Excellent	****
Very Good	***
Good	**

Proteins	Rating	Brand
Designer Protein	*****	Next Nutrition
Nytro Whey	****	ProSource
Whey Ahead	****	Pinnacle
Pure Whey Stack	****	Champion Nutrition
MetMax	****	Champion Nutrition
ProLab  Whey	****	ProLab
Perfect Whey	***	Nature's Best

 

Testosterone Booster	Rating	Brand
NorStack	*****	Substrate Solutions
Androdyne	*****	Cytodyne Technologies
NorAndro Stack	*****	ProSource
AndroStack	****	Substrate Solutions
Diol Stack	****	Substrate Solutions
5-AD	****	ProSource
Norandrodiol	****	Substrate Solutions
Androstendione	***	GEN
AndroFuel	***	TwinLab