🏅 Klean Athlete PRO

Clean. Tested. Trusted. Backed by Science.

At Max Muscle Sports Nutrition – Stone Mountain, we don’t just sell supplements—we deliver confidence in every scoop, capsule, and serving. That’s why we’re proud to bring you our growing collection of NSF Certified for Sport® products—starting with the elite Klean Athlete® line.

These aren’t your average supplements. NSF Certified for Sport® means every product is:

✅ Third-party tested for banned substances
✅ Verified for ingredient accuracy and purity
✅ Trusted by pro athletes, Olympians, and serious competitors
✅ Backed by science and built for results

Whether you're a professional athlete, weekend warrior, or just committed to the cleanest path to peak performance, this is your safe zone. Every product in this collection is certified to help you train hard, recover smarter, and compete with confidence—no compromises, no contaminants, no shortcuts.

We currently feature the full Klean Athlete® lineup—from muscle-building creatine and whey protein to performance-enhancing BCAAs, recovery fuel, and stress-fighting adaptogens. More NSF-certified brands will be joining this collection soon, so you can expect even more clean, sport-safe options at your fingertips.

💡 Why Shop NSF Certified at Max Muscle Stone Mountain?

Because you deserve supplements that work as hard—and as clean—as you do.
And because we’re not here to just sell—we’re here to partner in your performance journey.

Come visit us in-store or shop online to explore the full NSF Certified for Sport® collection—where excellence is standard, and results are expected.