Proferrin Clear FAQ's
Everything you need to know before getting started.



Heme iron uses your body's natural absorption pathway—the same one that processes iron from meat. It bypasses the pathway that causes nausea and constipation with standard iron pills, delivering 10-23x better absorption with minimal side effects.
Most athletes tolerate Proferrin Clear significantly better than traditional iron supplements. The small dose (10.5mg) and unique absorption pathway mean less "free iron" in your gut causing irritation. Customer reviews consistently report zero stomach issues.
Get bloodwork checking ferritin and hemoglobin. For endurance athletes, ferritin below 30-50 μg/L indicates low stores. Symptoms include persistent fatigue, poor recovery, shortness of breath during easy efforts, and declining performance despite consistent training.
Yes. Proferrin Clear is NSF Certified for Sport, meaning every batch is tested for banned substances. It contains only 4 ingredients: heme iron polypeptide, gelatin capsule, magnesium stearate, and silicon dioxide.
Most athletes notice energy improvements within 2-4 weeks. Ferritin levels typically increase after 8-12 weeks of consistent supplementation. Get bloodwork after 8-12 weeks to assess progress and adjust dosing.
