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30 day Money-back guarantee*GlyNAC, a combination of L-Glycine and N-Acetylcysteine (NAC), has been studied for its role in promoting healthy aging. Research suggests it may help restore glutathione levels, reduce oxidative stress, support mitochondrial energy production, and improve both physical and cognitive performance in older adults.
With a precise clinical dose and clean European production, GlyNAC Clarity gives your body the building blocks it needs to defend against oxidative stress and maintain vitality.
L-Glycine
N-Acetyl Cysteine
Microcrystalline cellulose
Hydroxypropyl methylcellulose (vegan capsule)
Take 2 capsules daily, preferably in the morning with food, to support steady glutathione levels and cellular energy needs.
We offer free shipping to most European countries and the UK on orders above €50,-. We offer free shipping to Switzerland on orders over €75.
Orders placed before 15:00 CET are shipped the same day. Depending on your location it usually takes 1-5 business days for your order to arrive. Orders place after this time or in the weekend will be shipped the next business day.
GlyNAC supplement helps replenish glutathione, reduce oxidative stress, and support energy production, key foundations for healthy aging.
As we age, levels of glutathione — the body’s master antioxidant — decline. This leads to oxidative stress, mitochondrial dysfunction, and cellular imbalance, which in turn contribute to fatigue, cognitive decline, and faster aging.
GlyNAC combines L-Glycine and N-Acetylcysteine, two amino acids that act as direct precursors for glutathione synthesis. By restoring glutathione, GlyNAC helps cells defend against oxidative stress and function at their best.
The result is improved energy metabolism, sharper cognition, better resilience against inflammation, and support for overall cellular health.*
*these claims has not been approved by authorities
GlyNAC Clarity is designed for people who:
Want more daily energy and reduced fatigue
Value cognitive support as they age
Invest in longevity and cellular health
Seek clinically studied, science-backed supplementation
GlyNAC has been studied in several human clinical trials, showing benefits across multiple areas of healthy aging:
Improves glutathione deficiency & reduces oxidative stress
A 24-week clinical trial in older adults found that GlyNAC supplementation restored glutathione levels and significantly reduced oxidative stress markers, two key drivers of aging. Study
Enhances mitochondrial function & energy production
Research published in Frontiers in Aging showed that GlyNAC improved mitochondrial efficiency, helping cells produce energy more effectively and reducing signs of age-related energy decline. Study
Supports cognition & physical performance
The same randomized controlled trial also reported improvements in memory, executive function, gait speed, and muscle strength in older adults taking GlyNAC, pointing to broad benefits in both brain and body performance.Study
Reduces inflammation & improves insulin resistance
Additional evidence suggests that GlyNAC lowers inflammatory markers and improves insulin sensitivity, two factors closely linked with metabolic health and long-term disease prevention.
Unlike standard antioxidant supplements, GlyNAC works by restoring what the body is missing. Both glycine and NAC are essential for producing glutathione, and together they create a synergistic effect.
At Purovitalis, we ensure:
Optimal clinical dose — 300 mg of each ingredient per capsule
Clean ingredient sourcing from trusted European suppliers
GMP-certified production with independent lab testing
Science-backed formulation rooted in published clinical trials
This makes GlyNAC Clarity one of the most effective and trusted GlyNAC supplements for longevity and energy.
GlyNAC Clarity
N-acetylcysteine Only
L-Glycine Only
*No authorised EFSA claim; benefits are described in general, educational terms.
Clinical trials on GlyNAC show improvements in glutathione levels, mitochondrial function, and cognition after 12 weeks of consistent intake. Our subscription is designed to help you stay committed long enough to unlock those benefits.
Become your own expert in longevity with insightful articles, expert advice, and comprehensive information.
Become your own expert in longevity with insightful articles, expert advice, and comprehensive information.
Clinical studies suggest that noticeable benefits may occur within 8 to 12 weeks of consistent daily use.
It’s recommended to take GlyNAC in the morning with food to align with the body’s natural rhythms and support daily energy needs.
While NAC supports antioxidant defenses and cellular health, which are associated with healthy aging, individual results may vary.
Yes, combining glycine with NAC has been shown to more effectively boost glutathione levels and support mitochondrial function compared to NAC alone.
GlyNAC provides the precursors needed for the body to synthesize glutathione internally, which may be more effective than taking glutathione directly due to absorption limitations.
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Prof. Dr. Andrea Maier is an internist and professor of aging (“ longevity medicine ”) at the Vrije Universiteit in Amsterdam and the University of Melbourne, Australia. She studies the aging body and searches for anti-aging treatments. She heads the Center for Healthy Longevity in Singapore.
Why do we gradually decline during our average life of more than 80 years? Can we stop that process? Or maybe even turn around? And to what extent should we really want that? Maier gives practical tips on how we can extend our lifespan while also staying healthy.
Andrea Maier graduated in Medicine from the University of Lübeck in 2003. She specialized in internal medicine at the Leiden University Medical Center and subsequently chose the subspecialty of Geriatric Medicine. This is where she started her research into aging.
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