Every ingredient we stock is rated against the real research — from decades of solid trials to studies that are still early. We built VERISSIA to tell you the difference, so you know exactly what you're taking and why.
Age-related muscle loss (sarcopenia) is well documented — and regular resistance training is one of the most consistently proven ways to preserve and rebuild lean muscle and strength as you get older. It's the foundation everything else sits on.
A 2025 meta-analysis of 8 trials and 482 older adults found creatine combined with resistance training significantly improved lean tissue mass and strength, with the largest gains seen within the first 32 weeks of use.
Human trials confirm NMN reliably raises NAD+ levels in the blood. But well-designed studies haven't yet shown it improves muscle mass, grip strength or walking speed. We're honest that this one is still early.
From Very Strong to Early & Unproven, every ingredient in VERISSIA carries a rating — so you always know how solid the science actually is, not just how good the marketing sounds.
Sources: Creatine + resistance training in older adults, meta-analysis (Eur Rev Aging Phys Act, 2025) · NMN/NR human trial evidence review (2025).