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Better health, less stress, more energy

  • Retail Customer: $39.75
  • AutoShip Customer: $29.81
  • Item Code : 00011004
  • Content : 1 L (34 fl. oz)

Mineral herbal formula that contains 6 essential minerals (potassium, magnesium, iodine, calcium, iron and phosphorus) as well as 15 plant extracts whose properties focus on meeting the nutritional and environmental challenges we face in our lives.

The minerals found in the K-21 formula play the role of coenzymes that allow the body to carry out functions such as energy production, growth and nourishment. The plants selected for K-21 were chosen for their potential positive effects on organs such as the heart, brain, liver, kidneys and pancreas, as well as for qualities that help protect these organs from damaging effects of environmental pollution.

Essential minerals

Potassium, iron, calcium, phosphorus, iodine, magnesium

Plant extracts

Alfalfa, grape, angelica, celery, acai, chamomile, passion flower, acerola, sarsaparilla, gentian, spirulina, thyme, bilberry, cranberry, rhodiola.


  • Helps the body to metabolize carbohydrates, fats and proteins.*
  • Helps in the function of the thyroid gland.*
  • Helps to form red blood cells and helps in their proper function.*
  • Provides a source of potassium and iodine.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent disease.
Supplement Facts
Serving size: 0.5 fl. oz (1 tablespoom)
Servings Per Container: 66.6
  Amount Per Serving % Daily Value
Calories 26 kcal
Total Carbohydrates 2 g
(Citrate and Glycerophosphate)
300 mg 9%
29 mg 3%
1.5 mg 8%
Phosphorus 47 mg 5%
(Potassium Iodide)
25 mcg 17%
12.5 mg 3%
Plant Extract Concentrate 112 mg

*Percent Daily Values are based on a 2,000 calorie diet.
† Daily Value not established.


Spring water, Glycerine, Potassium citrate, Plant extract concentrate 0.69% [Acai Fruit (Euterpe Oleracea), Bilberry fruit (Vaccinium myrtillus), Acerola Juice (Mahlpigia glabra), Alfalfa herb (Medicago sativa), Cranberry fruit (Vaccinum oxycoccus), Rhodiola root (Rhodiola rosea), Gentian root (Gentiana lutea), Thyme leaf (Thymus vulgaris), Sarsaparilla root (Smilax aristoloch), Chamomile flower (Matricaria chamomilla), Grape seed (Vitis vinifera), Passion flower herb (Passiflora incarnata), Celery seed (Apium graveolens), Angelica root (Angelica archangelica), Spirulina algae (Spirulina pratensis)], Caramel color, Calcium glycerophosphate, Magnesium glycerophosphate, Natural flavors, Methylparaben, Potassium glycerophosphate, Potassium hydroxyde, Ferric glycerophosphate, Propylparaben, Potassium iodide.

K-21 is a mineral supplement for the maintenance of good health. The minerals and herbal ingredients found in K-21 play several roles in the maintenance of good health. K-21 helps the body to metabolize carbohydrates, fats and proteins, in the function of the thyroid gland, to form red blood cells and helps in their proper function. It also helps in the development and maintenance of bones and teeth, in tissue formation, to maintain proper muscle function and to prevent magnesium deficiency.

No, there is no caffeine.

Yes, as there is no caffeine.

This would be unlikely.

K-21 contains potassium. Immunotec recommends that you ask your health professional whether this will have an effect on your treatment.

The small deposits or crystals sometimes found at the bottom of the K-21 bottle are caused by the reaction between two of the minerals present in the product: calcium glycerophosphate and potassium citrate. These deposits are harmless and can be discarded if so desired.

Both these products contain potassium. (K-21: 600 mg, Xtra Sharp: 600 mg). The Daily Value (DV) for potassium is 3,500 mg. Most healthy individuals will have no problem ingesting both products. People on blood pressure medication, or have heart or kidney problems or any other major medical problem should ask their health professional about taking these products alone or in combination.

No, the product is intended for adults.

The label clearly states the cautions and warnings associated with this product.