Clinically Dosed Formulas
Research-backed Ingredients
Highest Quality Ingredients
3rd Party Lab Tested
What Makes Us Different?
As lifelong runners, we grew tired of supplement companies catering to bodybuilders, gamers or elite athletes while also pushing products with unproven ingredients or ineffective doses to make a profit.
Our mission is to cut through the outrageous claims and marketing nonsense to bring you the best evidence-based, cutting-edge supplements designed specifically to help you live healthier, feel younger, and perform at your best.
We dive deep on the science and only include the highest quality ingredients with research backed benefits.
It’s finally time for masters and endurance athletes to have supplements that work as hard as they do!
Clinically Tested & Proven Ingredients
Every ingredient in our products has multiple studies demonstrating a scientifically significant benefit or outcome.
We don’t include any fad or fancy sounding ingredients just to pad the label.
Every formula is critiqued and revised in accordance with feedback from independent scientific advisors to ensure proper efficiency.
Scientifically Optimal Doses
Underdosing or using proprietary blends to hide the ingredient amounts is a way many supplement companies try to save money.
Our products have scientifically efficacious dosages and we disclose the exact amount on every label
Only The Highest Quality Ingredients
Not all ingredients are created the same.
For example, ferrous bisglycinate and ferrous sulfate are both forms of iron. However, research has shown that bisglycinate is absorbed almost 2 x better.
Most supplement companies use the cheapest, least effective forms of these ingredients, many of which are not bioavailable. While they may cost more, we only use the highest quality and most effective forms of every ingredient.
Discover why 1,000+ customers rely on MAS
MAS Iron
By combining the most efficiently absorbed elemental iron supplement with clinical proven ingredients to aid in absorption, MAS Iron performs like no other iron product on the market.
- 4 x more absorbable than generic iron
- Improves iron uptake and bioavailability by 30%
- 50% fewer GI side effects
MAS Creatine
Creatine gummies designed for the needs of endurance athletes.
Specifically formulated to be absorbed quickly without the bloated feeling you’ll find with traditional creatine powders.
- Recover Faster After Training
- Enhance Muscle Strength & Growth, Especially in Older Athletes
- Improve Endurance & Stamina
MAS Sleep
Get the most out of every minute of sleep with clinically effective doses of 6 ingredients scientifically shown to help you fall asleep faster and increase deep sleep cycles.
- Helps achieve 90%+ sleep scores
- All natural, with no melatonin and no grogginess
- Lowers cortisol levels to help promote recovery
MAS NAD+
Target aging at the source with NAD+ to proactively reverse your biological age
NAD+ is a groundbreaking formula which is clinically proven to…
- Reduce age-related decline in muscle function
- Enhance cellular energy to reduce general tiredness & fatigue
- Fight aging at the cellular level
Ferritin Test
At-home ferritin testing makes it easy to establish a baseline and periodically monitor your iron levels so you can maximize your health and performance.
- Simple at-home test using a finger prick
- Performed by high-complexity CLIA certified and CAP-accredited laboratories
- Secure dashboard to access and track your data
MAS Flush
The first supplement created specifically for runners to stop bathroom issues before they start.
Clinically effective doses of 4 ingredients scientifically shown to improve gut health and reduce gastric distress to ensure bathroom issues never ruin your runs again.
- Never start your runs needing to go
- Practically eliminates gastric distress during workouts and races
- Reduces ‘leaky gut’ by up to 40%
MAS Endurance
Cutting-edge pre-workout to help you boost VO2 Max and aerobic capacity, buffer lactic acid and enhance mental sharpness to help maximize your performance, break PRs, and outlast your competition.
- Improve time to exhaustion by as much as 15%
- Increase lean muscle and strength
- Boost aerobic capacity and VO2max by up to 30%
MAS Recovery
Cutting-edge ingredients specifically formulated to deliver the optimal ratio of nutrients you need to ignite your recovery so you can fully absorb the full benefits of your training and bounce back quicker for your next workout.
- Boost post-workout protein synthesis and glycogen replenishment by 14%
- Significantly reduce exercise-induced muscle damage
- Increase total testosterone by 17%
MAS Fasted
Our Fasted Fat Burner is the only pre-workout fat burner for endurance athletes that contains clinically effective doses of 7 scientifically proven ingredients that help boost fat metabolism when training fasted.
- Increase fat oxidation by 20%.
- Reduce the rate of muscle breakdown during exercise
- Enhance your body’s ability to turn fat into energy by as much as 40%