Premier Research Labs Liquid Zinc Assay | Radiant Life

Liquid Zinc Ultra

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An essential mineral for life, zinc holds the center position in healthy RNA and DNA. If zinc is deficient, optimal health is difficult to achieve. Everyone is vulnerable, especially children through adolescence.

Key Features

  • Encourages overall well-being
  • Supports healthy immune system function
  • Promotes healthy mood
  • Supports highly active athletes with stressed zinc levels
  • Excellent for use in rapid analysis of zinc status

Highly Absorbable Liquid Zinc for Brain, Adrenal & Whole Body Support

An essential mineral for life, zinc holds the center position in healthy RNA and DNA. If zinc is deficient, optimal health is difficult to achieve. Everyone is vulnerable, especially children through adolescence. Zinc is the second most abundant trace mineral in the human body and is found in every bodily tissue and tissue fluid. Biochemical functions in which zinc plays an integral role include enzyme function, protein synthesis, nucleic acid metabolism, the immune system, brain development/function and adrenal function. We present Premier Research Labs Liquid Zinc Assay to increase your zinc levels.

Zinc's Many Important Roles

Use this liquid zinc supplement to play a key role in maintaining a healthy attitude and mood. In animal studies, zinc deficiency produced significant behavorial changes such as aggression. In human studies, zinc deficiency created anxiety and mood disturbances. Zinc is also plays an important role at adrenal hormone receptor sites. Lowered zinc levels may inhibit adequate adrenal function and the body's ability to respond to stress.

Zinc Deficiency Symptoms:
  • Slow wound healing
  • Taste & smell disorders
  • Impaired growth & sexual development
  • Hyperactivity
  • Impaired Adrenal Function
  • Skin disorders
  • Irritable Bowel Syndrome
  • Iron nonresponsive anemia
  • Pica (eating dirt)
  • Eating disorders (such as anorexia, bulimia)
Fast Repletion

For those wanting to replete their zinc status very quickly, the infallible absorption of Zinc Assay offers the most rapid response. Zinc and other nutrients are most commonly transported into the blood via the villi of the small intestine; however, with the flattening of the villi, it becomes necessary to give zinc-deficient individuals a form of zinc that can be better absorbed. Zinc Assay, a form of liquid zinc sulfate septahydrate, helps overcome this problem, since it can be efficiently absorbed through the lining of the stomach. Other forms of zinc may be very difficult to absorb in compromised individuals.

The Zinc Assay Taste Test

To determine if you have sufficient zinc levels, you may take the Zinc Assay Taste Test. This is a simple taste test reported in the medical journal, The Lancet. If you have sufficient zinc levels, Zinc Assay will taste bitter. If you are deficient in zinc, Zinc Assay will taste like water.

More specifically...
1) Optimal zinc levels—An immediate, unpleasant, obviously adverse taste, at which the patient normally grimaces.
2) Adequate Zinc Levels—A definite but not strongly unpleasant taste is noted immediately and tends to intensify with time.
3) Quite Zinc Deficient—No taste noted initially, but develops in 10-15 seconds.
4) Very Zinc Deficient—Tasteless or "tastes like water".

100% Purified Water

PRL uses 100% purified water (not filtered water) as the base in our Zinc Assay. The use of purified water is critical since using tap water or only partially purified (filtered) water may contain impurities which alter the taste. During the Zinc Taste Test, a person deficient in zinc should experience a bland taste; however, if the liquid zinc contains impurities, the taste may be altered and give a false negative.

Radiant Life is licensed to distribute nutritional supplements, foods and wellness products manufactured by Premier Research Labs, Austin, Texas, USA.

Disclaimer: The information provided here is meant to serve as an educational resource for determining your options and making your own informed choices. It is not intended as medical advice or to diagnose, prescribe, or treat any specific illness. The statements made on this website have not been evaluated by the FDA.

Supplement Facts

Serving Size: 1 Teaspoon (5mL)

Serving Per Container: about 47

  Amount Per Serving % Daily Value 
Zinc (Zinc Sulfate Heptahydrate) 25 mg 227%

  % Daily Values are based on a 2,000 calorie diet.

Other Ingredients: Purified Water

Suggested Use: To test: Hold 1 teaspoon in the mouth for 15 seconds. If an immediate taste perception occurs, the individual may have an adequate zinc status. A lack of taste or delay in taste perception may indicate a zinc deficiency. Liquid Zinc Assay is not harmful and may be swallowed after testing.

To use Liquid Zinc Ultra as a supplement, take 1 teaspoon in water or juice daily or as directed by a health professional.

Our liquid zinc is made using 100% purified water, not filtered or tap water which may contain impurities.

Our Quality One Guarantee. No corn, milk, soy, salt, sugar, wheat, yeast, artificial colors, flavors or preservatives. Store in a cool, dry place.

Manufactured in an NSF-GMP Registered facility for superior quality assurance

3 Reviews

  • I was having a hard time taking pill form.

    May 10th 2022 | By Jennifer Radschlag


    It's not bad we belive in vitamin c zinc and vitamin D. Everyday each and everyday.

  • Yuck! :)

    Aug 14th 2021 | By Sharon


    Glad I read the instructions before putting the teaspoon in my mouth, because it tasted awful and my husband had the same reaction. Thank you for the quick way to tell us that our zinc levels are "topped up." Quite worth the "yuck" reaction.

  • Zinc Assay

    May 7th 2021 | By Claire Jackson


    Was as promised. Very pleased with my experience shopping here.