Vegetarian non-GMO General Immune Support Gluten-free Instant support

NK Cell Activator™

Can support natural, healthy killer cell function

Item #01903 30 Vegetarian Tablets 1 per serving In Stock
Vegetarian non-GMO General Immune Support Gluten-free Instant support

NK Cell Activator™

Can support natural, healthy killer cell function

Item #01903 30 Vegetarian Tablets 1 per serving In Stock

For you, for a targeted seasonal immune protection and healthy immune response

The ingredients in NK Cell Activator™ can:
  • Help protect against seasonal immune challenges
  • Boost the activity of natural killer cells to support the immune system
  • Provide a clinically studied, potent immune modulator

Natural killer cells are your body's first responders and help initiate immune protection. But as we age natural killer cell activity markedly declines. NK Cell Activator™ contains 500 mg of a proprietary blend of modified rice bran to strengthen the activity of NK cells.

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Product details "NK Cell Activator™"

Natural killer (NK) cells are an early component of the body's response to an infection. They are amongst the first immune cells at sites of invasion where they help to initiate immune protection. Natural killer cells are involved in seasonal support for the body’s natural defense system.

NK cells also recognize and remove senescent cells that accumulate in aged tissues and disturb metabolic processes. As we age, the activity of these crucial components of the innate immune system mark­edly declines, and weakened immune function can result.

A formula called NK Cell Activator™ has been developed to provide targeted seasonal protection by supporting the activity of natural killer cells. NK Cell Activator™ contains modified rice bran which has been shown to be a potent immune modulator.

In one clinical study a three-fold increase of natural killer cell activity was demonstrated in healthy individuals within three to four weeks of receiving a 500 mg daily dose of the rice bran compound found in NK Cell Activator.

In a another double-blind, randomized, placebo-controlled study, modified rice bran as found in NK Cell Activator™ was shown to boost a further class of immune cells called myeloid dendritic cells. These cells connect the innate and the adaptive immune systems through their messenger role.

An optimal strategy to derive the unique functional effects of NK Cell Activator™ is to take one capsule per day for four months during the winter season. 

Health topics:
Supplement Facts

Serving size 1 vegetarian tablet

Servings per container 30

Amount per serving

Proprietary Enzymatically Modified Rice Bran

500 mg

Other ingredients: microcrystalline cellulose, maltodextrin, dicalcium phosphate, croscarmellose sodium, stearic acid, silica, hydroxypropyl cellulose, coating (hydroxypropyl methylcellulose, glycerin), vegetable stearate.


Contains wheat.

Dosage and use             

Take one (1) tablet one to two times daily with food, or as recommended by a healthcare practitioner.

Suggested duration of use: 4 months. Repeat as necessary.


Do not purchase if outer seal is broken or damaged.
If you are undergoing treatment for a medical condition or if you are pregnant or lactating, please consult with your medical practitioner first.

A food supplement should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Store tightly closed in a cool and dry place.


  • J Allergy Clin Immunol. 2013;132(3):536-544.
  • Nat Rev Immunol. 2019; 19(5):282-290.
  • J Leukoc Biol. 2019;105(6): 1275-1282 
  • Exp Ther Med. 2018;15(3): 2313-2320
  • Daiwa Pharmaceutical Co., Ltd. Nk Cell Immunomodulatory Function by Modified Arabinoxylan Rice bran (MGN-3/Biobran) at Low Concentration (500 mg/day = 7 mg/kg/day). 2012. Unpublished Study.
  • Cancer Immunol Immunother. 2013;62(3):437-445.

Original source/product from Life Extension®