Feeling more youthful and extending your vitality is no longer a myth. It’s a reality.
REDISCOVER YOUR YOUTH
scientific study
Clinically proven to increase NAD+ levels
A 28-day clinical study conducted by the Medical College of Georgia evaluated the effectiveness of RiaGev® under real-world conditions that reflected typical daily use. The study enrolled 27 healthy, middle-aged adults and tracked changes in key biomarkers of cellular health, including NAD+ levels.
Building on these findings, Grail Eternal with RiaGev® was developed to deliver clinically supported, flexible dosing options for sustained cellular vitality. Participants taking 1,500 mg of RiaGev® daily showed a 55% increase in NAD+ over baseline, while those taking 3,000 mg achieved a 67% increase—demonstrating measurable benefits for maintaining optimal NAD+ levels, no matter your preferred dosage.*
unmatched bioavailability
Formulated for direct delivery into your cells
Depending on a supplement's bioavailability, the body utilizes three different pathways to generate NAD+. Most NAD-enhancing supplements involve more complex pathways that require several steps to be broken down and made bioavailable. This inefficiency results in a greater risk of being digested in the stomach and never reaching the cellular membrane.
Eternal's primary ingredient, RiaGev, enters the NAD+ biosynthetic pathway directly through the Salvage Pathway, which requires fewer steps to enter the cellular membrane. Simply put, while other supplements claim to boost NAD+ production, third-party pharmacodynamics studies show that Eternal's bioavailability is unmatched and increases NAD+ more quickly and efficiently.
3rd Party Tested
All Grail products undergo third-party testing for quality, purity, and contaminants.
Clinically Researched
Each formulation is grounded in rigorous clinical research and guided by the latest advancements in nutritional science.
FDA & GMP Standards
All products are rigorously tested and manufactured in FDA-registered facilities certified to meet GMP standards.
Manufactured in the USA
All products are carefully manufactured in the USA to ensure quality, consistency, and safety.
Vegetarian
Crafted to meet vegetarian standards using only plant-based or non-animal ingredients.
Gluten-Free
Formulated without gluten to support dietary sensitivities and overall wellness.
Soy-Free
Formulated without soy to support clean, allergen-conscious nutrition.
No Fillers
Formulated without unnecessary fillers, binders, or additives.
eternal benefits
Whole-body support
Grail Eternal is designed to support cellular metabolism, energy production, and healthy cortisol levels. It helps manage stress, promotes restful sleep, and sustains an active lifestyle. NAD+ enhances muscle strength, recovery, and brain function, supporting memory and mental clarity as you age. Incorporating this NAD+ booster into your daily routine is a simple way to support a healthier, more vibrant life.
Cellular Restoration + Resilience
Supports cellular repair and healthy inflammation, helping the body recover more quickly after physical activity.*
More Energy + Endurance
Increases energy and endurance by driving ATP production and supporting efficient oxygen use during activity.*
Cognitive Function + Memory
Helps power neural cells, supporting memory, quicker recall, sharper thinking, and long-term brain health.*
Sleep Quality + Stress Control
Helps manage stress and improve sleep by supporting cellular resilience and regulating stress pathways and circadian rhythms.*
Metabolism + Blood Sugar
Boosts metabolism and supports healthy glucose levels by enhancing mitochondrial function and insulin sensitivity.*
Muscle Recovery + Strength
Supports muscle strength and recovery by enhancing cellular energy production and activating repair pathways.*
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Support cardiovascular health by maintaining normal homocysteine levels
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Hydrolyzed Collagen Peptides Powder for joint, bone, skin, hair, nail, and gut health
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An optimal combination of Vitamins A, D3, and K2 in a delicious, sugar-free gummy
