Water soluble
Capable of dissolving in water.

Whey Protein
Airy source of protein (other than casein), known for high levels of BCAA's and high nitrogen retention. Made from milk curd, whey protein has a superior amino acid composition, superior biological value (meaning that more of what you eat gets digested and into your system), and is very low in lactose (a milk sugar that most adults have difficulty digesting).
See: ImmunoPro Rx; ImmunPlex Chocolate; ImmunPlex Vanilla

Yeast
A type of single-celled fungus. Certain types of yeast can cause infection, most commonly in the mouth, vagina, or gastrointestinal tract. Common yeast infections include vaginitis and thrush.

Yohimbe Bark
A chemical substance derived from the Yohimbe said to boost natural testosterone levels in the body, fertility, and muscle and nerve maintenance.

Zinc
This mineral is used for protein metabolism, enzyme activation, burn and wound healing, sex organ growth, and maturity, prostate glad function reproductive organ growth and development. See: Zinc