ACID-RESISTANT: Serrapeptase in Serra-RX has a completely phthalate-free polymer applied to maximize efficacy.* | SUPPORTS HEALTHY TISSUE REPAIR: Potent proteolytic activity supports the body’s ability to break down proteins, lessen the effects of inflammation in the body, and promote scar tissue health.* | SUPPORTS MUSCLE & JOINT HEALTH: An all-natural systemic enzyme can provide muscle and joint support through fibrin metabolism.* | PROMOTES HEALTHY RESPIRATORY & SINUS FUNCTION: An all-natural systemic enzyme like Serrapeptase supports immune cell response, and supports relief from sinus and respiratory build-up of mucus.* | QUALITY & PURITY YOU CAN TRUST: Manufactured in the USA. Free of wheat, egg, milk, soy, tree nuts, peanuts, fish, shellfish, and sesame.