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TB-500 What is the main difference between BPC-157 and TB-500

Nature 367 (6464), 607614

For GI-specific research, oral bioavailability studies, or protocols that model oral administration routes, the capsule formulation is more appropriate

Many labs specify a minimum purity threshold around 98%, and some suppliers such as Protide Health publish batch-specific HPLC data showing 99% purity or higher on their Certificates of Analysis

It was previously available through compounding pharmacies as a bulk drug substance, but the FDA reclassified it as a Category 2 substance, which effectively restricts compounding pharmacies from producing it

Instead, theyre better thought of as a supportive addition to a gentle, protective haircare routine (more on that ahead)