Clinically proven VO2 max improvement: Enhances aerobic capacity for better endurance performance
39% reduction in oxidative stress in 10 days: Supports cellular protection and anti-aging benefits
Nutrient-rich antioxidants: Fight free radical damage to promote longevity
Supports cardiovascular health: Helps maintain heart and lung function
Promotes body alkalinity: Reduces inflammation for overall wellness
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Clinically Proven
Clinical studies have proven immense benefits for the athlete and weekend warrior while using Essential (also known as Extreme Endurance). The anti-aging advantages now surpass all expectations for this unique formula.
VO2 Max testing can be a predictor of longevity. A VO2 max test evaluates whether your heart and lungs
Reduction in oxidative stress
39% in 10 days
VO2 max improvement
Noted in 2 weeks
Tested in clinical studies
Journal of Athletic Enhancement (2016), Long COVID Study (2024)
Formulation
Antioxidant blend
Intended use
Endurance athletes, active adults
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4.9
18 ratings
5
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Just works.
M
Marco · November 4, 2025
High-quality products every time! This is my must-have product from xendurance.
Marcia · June 7, 2025
Great product, feel energy when I wake up in the moring.