Life Extension NK Cell Activator™, 30 Vegetarian Tablets supplement bottle
Life Extension

NK Cell Activator™, 30 Vegetarian Tablets

What We Researched
1 active ingredient analyzed · 9 inactive ingredients decoded · 3 brand certifications checked · 3 retailers compared · Last updated: Mar 2026
62
Product Score Fair
86
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Proprietary Enzymatically Modified Rice Bran 500 mg **
Bioavailability Fair

Absorption Rating

  • Proprietary Enzymatically Modified Rice Bran Fair
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Maltodextrin
  • Dicalcium Phosphate
  • Croscarmellose Sodium
  • Stearic Acid
  • Silica
  • Hydroxypropyl Cellulose
  • Coating (hydroxypropyl methylcellulose, Glycerin)
  • Vegetable Stearate
Efficacy Very Poor

Dosage Analysis

  • Proprietary Enzymatically Modified Rice Bran 500 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Proprietary Enzymatically Modified Rice Bran 500 mg **

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Dicalcium Phosphate Safe

Serves as both a filler and a supplemental source of calcium and phosphorus.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Hydroxypropyl Cellulose Safe

Binds tablet ingredients and can form tablet coatings.

Coating (hydroxypropyl methylcellulose, Glycerin) Unknown
Vegetable Stearate Safe

Prevents ingredients from sticking to equipment.

Price Comparison

iHerb $33.75
Best Price
Vitacost $33.75

Price History

Tracked across major retailers. Updated periodically.

$36$35$34$33$32 Mar 12 $33.75$33.75
iHerb
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Life Extension

Founded 1980 · Fort Lauderdale, Florida, USA · 352 products · lifeextension.com

Certifications

3 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Nsf Gmp Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
Testing Lab Disclosure — Claimed

Violation History

2 incidents
Prop 65 Lead2018-04-13Source
Fda Warning Making drug claims for dietary supplements, suggesting they can treat, mitigate, or prevent diseases such as breast cancer and Alzheimer's.2017-02-01Source
Related Supplements
NOW Foods Eggshell Membrane, 500 mg, 60 Capsules
NOW Foods Eggshell Membrane, 500 mg, 60 Capsules
Product 100 Brand 100
NOW Foods Sports, D-Ribose Powder, 1 lb (454 g)
NOW Foods Sports, D-Ribose Powder, 1 lb (454 g)
Product 100 Brand 100
NOW Foods Sports, D-Ribose Powder, 8 oz (227 g)
NOW Foods Sports, D-Ribose Powder, 8 oz (227 g)
Product 100 Brand 100
Life Extension Optimized Saffron with Satiereal
Life Extension Optimized Saffron with Satiereal
Product 100 Brand 86
Life Extension Bifido GI Balance, 60 Vegetarian Capsules
Life Extension Bifido GI Balance, 60 Vegetarian Capsules
Product 100 Brand 86
Life Extension PQQ, 20 mg, 30 Vegetarian Capsules
Life Extension PQQ, 20 mg, 30 Vegetarian Capsules
Product 100 Brand 86
Frequently Asked Questions
Is Life Extension NK Cell Activator™, 30 Vegetarian Tablets a good supplement?

Life Extension NK Cell Activator™, 30 Vegetarian Tablets received a product quality score of 62/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients Of the 9 inactive ingredients, 7 are rated safe and 0 are flagged for review. The manufacturer, Life Extension, holds a brand trust score of 86/100 with 3 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp.

What are the ingredients in Life Extension NK Cell Activator™, 30 Vegetarian Tablets?

Life Extension NK Cell Activator™, 30 Vegetarian Tablets contains 1 active ingredients: Proprietary Enzymatically Modified Rice Bran (500 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Life Extension NK Cell Activator™, 30 Vegetarian Tablets safe to take?

Life Extension NK Cell Activator™, 30 Vegetarian Tablets has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Life Extension a trustworthy supplement brand?

Life Extension receives a brand trust score of 86/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1980 and headquartered in Fort Lauderdale, Florida, USA, the company offers 352 products in their lineup. They hold 3 verified certifications including Consumerlab, Fda Gmp Inspections, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Life Extension has 2 historical regulatory incidents on record, which are factored into the trust score.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

Download on App Store Browse All Supplements
Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.