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Life Extension

NK Cell Activator™, 30 Vegetarian Tablets (500 mg per Tablet)

4.7 · 528 reviews
3,584 ₽

Non GMO LE Certified Supports Healthy Natural Killer Cell Function Dietary Supplement Our NK Cell Activator™ supports the activity of natural killer (NK) cells to promote a healthy immune response and provide targeted seasonal immune protection. What Is NK Cell Activator? Our overall immune system can decline over time, especially the activity of NK cells, your body’s first response to unknown immune challenges. NK Cell Activator™ contains 500 mg of a proprietary blend of modified rice bran to strengthen the activity of NK cells with just a few months of use each year. NK cell activity provides protection against seasonal immune challenges for real-world immune support. NK Cell Activator™ Benefits Supports the activity of natural killer cells Helps protect against seasonal immune challenges Encourages functional activity of natural killer cells to support the immune system

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Non GMO LE Certified Supports Healthy Natural Killer Cell Function Dietary Supplement Our NK Cell Activator™ supports the activity of natural killer (NK) cells to promote a healthy immune response and provide targeted seasonal immune protection. What Is NK Cell Activator? Our overall immune system can decline over time, especially the activity of NK cells, your body’s first response to unknown immune challenges. NK Cell Activator™ contains 500 mg of a proprietary blend of modified rice bran to strengthen the activity of NK cells with just a few months of use each year. NK cell activity provides protection against seasonal immune challenges for real-world immune support. NK Cell Activator™ Benefits Supports the activity of natural killer cells Helps protect against seasonal immune challenges Encourages functional activity of natural killer cells to support the immune system

Customer reviews

5.0
verified purchase
I felt a difference

Weirdly and unexpectedly I felt a difference from taking these. I always have low hopes when trying a new supplement, bc I have low absorbtion in my gut. I have immune deprivation with ME/CFS and I have tried a lot of supplements that doesn't work. I can't really explain how much better I felt, it wasn't like I suddenly got healthy. But I did feel better after a few days use only

11/1/2024
5.0
verified purchase
Effective support

I used to always get the flu whenever there was member of the family that have it. When I started taking this supplement, even if they are near with me or living with me, I am able to survive the flu season in the family. I did not get the flu and did not experience any flu related symptoms which I think is very good. Aside from this, I am also taking good care of myself so don’t depend on just one supplement. That’s why it’s called supplements, they are our health supporters.

9/10/2025
5.0
verified purchase

I am a nighttime refluxer with LPR this has helped me a lot to combat the condition, I have realized that a single tablet or even half is the sweet spot, 2 as instructed usually cause more issues, I think it's because of the stomach being too full and that creates opportunity for the LES to relax. So if you are a nighttime refluxer, take that into account, overall great product.

9/7/2025
5.0
verified purchase

These NK Cell Activator tablets have become my immune-boosting staple—I swear I get sick less often since adding them to my routine! The science-backed formula gives me peace of mind, and the vegetarian tablets are easy to swallow. I appreciate that they don’t contain unnecessary fillers. The only downside is the 30-count bottle runs out quickly if taking daily, but the results make it worth repurchasing.

6/23/2025
5.0
verified purchase
Great Support for Immunity

This NK Cell Activator is awesome! The ingredients are good and make a real difference. Sure, it tastes kind of neutral , but that's not a problem for me. Even though I have some absorption issues, I've noticed a positive change in my health since starting this supplement. Taking these little capsules is easy too, especially with their size when you're on other supplements. Some say it's best started early to really boost your immune system, and I wish I'd known that sooner!

5/24/2025
3.0
verified purchase
Not sure if it helps

I am 32 years old and suffer from chronic inflammatory response syndrome (CIRS) from a toxic mold exposure. Since then I am looking for high quality products that are affordable. This product has great ingredients and I really like the packaging. My main concern is insomnia and inflammation. This has not really helped. I find this brand to be ineffective for what I am dealing with. Good size capsules and inexpensive.

4/14/2025
5.0
verified purchase
Immunity

I want this for the quality and the ingredients. The size of the bottle is amazing the dosage you can use it always and beneficially it can benefit your immunity the taste. It doesn’t taste anything, but it smells like mushroom, which is OK. It’s perfect for the people who always have flu all the time.

1/18/2025
5.0
verified purchase

I take this after chemotherapy. Good for a month use.

6/27/2026
4.0
verified purchase
Good product

The ingredients seemed to be of quality in this supplement. The size is good and this benefited my mum by helping her battle cancer. The dosage is also super easy to manage, super easy to take as there’s no distinct taste. I recommend the product although I didn’t see too much of a difference after taking it hence a 4/5

4/3/2026
5.0
verified purchase
Useful immunity boost

Life extensions are known for high quality products. The ingredients are in best available form and effective dosages. The capsules size are okay, and you may especially benefit from NK cell activator if you need your immune system boosted . Nk cells and T cells are the ones of most important components of our immunity. I use it as a part of wider protocol for improving my immunity terrain.

3/5/2026