NK Cell Activator is a dietary supplement that boosts natural killer cell activity, helping your immune responses stay sharp and ready to tackle everyday challenges. Each tablet delivers 500 mg of proprietary enzymatically modified rice bran, a concentrated immune modulator created by shiitake enzymes to support innate and adaptive immunity. Committed to quality, Life Extension's non-GMO and vegetarian formula fits many lifestyles.

Available Sizes & Variants:

30 Veggie Tabs – easy daily dose fits into any routine.

Benefits & Features:

• Activates natural killer cells to support everyday immune responses.
• 500 mg of proprietary enzymatically modified rice bran acts as a potent immune modulator created by shiitake enzyme treatment, harmonising innate and adaptive immune responses.
• Non-GMO and vegetarian formula supports daily use for a wide range of lifestyles.
• Additionally, the modified rice bran boosts myeloid dendritic cells, which act as messengers between innate and adaptive immunity, helping immune signals coordinate more effectively overall.
• Intended for daily use with meals, this immune system booster supports seasonal needs and helps maintain NK cell activity.

Life Extension has a long-standing focus on evidence-based immune support. NK Cell Activator harnesses 500 mg of proprietary enzymatically modified rice bran, created by shiitake enzymes to modulate immunity and support NK cell function. The rice bran also helps dendritic cell communication, bridging innate and adaptive responses. The product is non-GMO and vegetarian, though it contains wheat as an allergen, and is manufactured to strict quality standards.

Proprietary Enzymatically Modified Rice Bran

• GTIN: 737870190332
• Manufacturer: Life Extension
• Categories: Best SellersLife ExtensionNew ArrivalsSubscribe & Save Products
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

You should consume one (1) tablet with food, either once or twice a day, as advised by a healthcare professional. Adults and children over 12\, take 1 capsule with water. Do not exceed the recommended intake.

Please consult the product packaging for accurate instructions on how to use the product.

1. Boosts Immune System: NK Cell Activator from Life Extension contains a unique blend of ingredients that have been shown to activate and enhance the function of natural killer (NK) cells. These cells are an essential part of the immune system and play a crucial role in fighting off infections and diseases.
2. Fights Cancer: Studies have shown that NK Cell Activator can help to inhibit the growth and spread of cancer cells. By activating NK cells, this supplement helps to boost the body's natural defense against cancer and may even help to prevent the development of tumors.

The Active Ingredient Is: Enzymatically Modified Rice Bran

Enzymatically Modified Rice Bran is a refined plant-based ingredient used to modulate immune responses. This version is created by exposing rice bran to shiitake mushroom enzymes to create bioactive compounds that support immune modulation.

This formula centres on this ingredient as the main active component, with other elements in place to support its immune-modulating role.

What Does Enzymatically Modified Rice Bran Do?

Enzymatically Modified Rice Bran participates in activating natural killer cells and boosting myeloid dendritic cells, which helps the innate immune system function as a rapid first line of defence.

Research notes that these actions contribute to enhanced communication within the immune system and support immune responses in daily challenges.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Life Extension leads with a science-led approach to immune support, which mirrors Welzo’s dedication to evidence-based curation. By working with Life Extension for NK Cell Activator, we emphasise a trusted name that focuses on formulation approaches aimed at engaging the innate immune system through enzymatically modified rice bran, a precisely dosed 500 mg daily ingredient named in the product profile.

Welzo recognises the brand’s focus on a targeted mechanism that supports natural killer cell activity, with research detailing the specific role of modified rice bran in immune modulation. This product is designed for steady, measured use, following a dosage protocol that supports consistent daily intake. Our evaluation process looks at brand credibility and manufacturing philosophy as part of a holistic check, making sure it aligns with our standards. This brand was carefully evaluated by Welzo's healthcare professionals for compliance with our supplement quality standards, and our team regards Life Extension as a credible partner in this space.

Why we partnered: Life Extension’s formulation approach, together with our quality framework, supports product-specific fit for NK Cell Activator while reinforcing Welzo’s commitment to transparent, science-led curation. For more on our team and standards, visit the linked pages.