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KEEY - Longevity Supplement

KEEY - Longevity Supplement

Save 35% Today With Coupon Code: HELLO35

Experience KEEY, our revolutionary longevity supplement, formulated with a powerful fusion of 10 scientifically backed ingredients in every pill. 

Created by top experts in longevity research and inspired by over 400 published studies, KEEY goes beyond traditional anti-aging supplements; it's your complete longevity solution.

The Benefits of KEEY

KEEY is extensia's flagship supplement, meticulously crafted to combat the hallmarks of aging and improve various biomarkers.

Energy Levels: Ingredients like NMN are known to boost NAD+ levels, leading to increased energy and strength, effectively countering age-related energy decline.

Cognitive Function: Stay sharp with brain-boosting effects of compounds like Spermidine and Fisetin, which have shown promising results in improving memory and cognitive agility in aging individuals.

Longevity: Stay younger for longer with our blend that targets the hallmarks of aging. Ingredients like Quercetin and Alpha-Ketoglutarate (AKG) are linked to increased lifespan and better health markers in various studies.

Skin Aging: Combat visual signs of aging from within. Our formula includes D-Glucosamine and AKG, known for their skin revitalizing properties, reducing wrinkles and improving skin elasticity.

Immunity: Boost your body's defense system with ingredients like Curcumin and Fisetin, which help in clearing senescent cells and enhancing overall immune response, keeping you healthier as you age.

Physical Performance: Enhance physical strength and performance with ingredients like NMN and Betaine (TMG), which are linked to increased muscle mass and energy output, vital for maintaining physical activity in later years.

10 Highly-Effective Ingredients

KEEY harnesses the synergy of ten scientifically-backed ingredients, each chosen for their proven efficacy in supporting longevity

Nicotinamide Mononucleotide (NMN): Key in enhancing lifespan and energy output.

D-Glucosamine: Promotes skin health by boosting collagen levels, leading to reduced wrinkles and visible signs of aging.

Spermidine: Linked to extending lifespan by up to 30% in various model organisms and improved health in humans.

Fisetin: May enhance cognitive function and memory. Prevents senescent cells.

Quercetin: Clinically proven to eliminate senescent cells, which are strongly linked to aging. Its role is vital in extending health and lifespan.

Alpha-Ketoglutarate (AKG): Reduces low-grade inflammation, a key factor in aging, by up to 80% in mammals. Reduces epigenetic age by up to 8 years.

Betaine (TMG): Clinical trials associate TMG supplementation with increased skeletal muscle mass, enhancing strength and performance.

Lithium: Studies indicate that low-dose Lithium supplementation leads to improved health outcomes.

Curcumin: Improves vascular endothelial function and reduces oxidative stress.

Piperine: Increases the bioavailability of other ingredients, notably enhancing curcumin absorption by up to 2000%.

90-Day Money-Back Guarantee

If you decide the KEEY isn't for you, we'll be happy to refund your money—no questions asked.

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Customer Reviews

Based on 226 reviews
I won back 4 years

Because of my interest in age reversal, I took an epigenetic age test nearly two years ago. The results weren't that great; the test said I was 47.4, while my actual age was 46 at the time. While researching longevity and ways to reverse biological aging, I stumbled upon Extensia.
I chose to take only the supplement and skipped the individual training guide, since I was and still am pretty active, and I prefer doing my own workouts. Fast forward 10 months, after sticking with the supplement and maintaining a healthy lifestyle, I took the epigenetic test again, and guess what! It showed I was 44.0, even though my chronological age was 47! That's almost 4 years in just one year! I touched base with my doctor to make sure everything was okay health-wise, and he confirmed that all my levels were right where they should be. Everything looks great!


I've been following the longevity science for years, and Keey is a game changer. Basically, It's replaced 90% of my previous supplement stack. Now all I take in addition is my collagen, a multivitamin, and my Omega-3s.


I've been taking it daily for about 4 months now. I feel really good with it. I sit in front of the computer all day (Software Developer) and it helps me with my focus. Also, I feel more energetic when I move around, not a sports guy, but I feel more motivated to be active.

Lukas A.
Cool Product!

I must say, this longevity supplement is pretty impressive. I've been researching longevity science for years and have been buying separate NMN, AKG, and Betaine supplements individually, which can get pretty expensive. KEEY gives me all that, plus more, in one pill and so much cheaper.


I'm enjoying this product