Regulatory Status Summary (as of July 29, 2026) Category 2 restricted status: Removed (April 2026) FDA approval: None USP/NF monograph: None 503A Bulks List: PCAC recommended inclusion (July 2324, 2026, nonbinding)
Maintaining lean muscle can help support mobility, stability, and overall health as we get older
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Frequently Asked Questions What are vitamin injections
While BPC-157 derives from a protective protein found in gastric juice, TB-500 is a synthetic version of Thymosin Beta-4, a naturally occurring peptide present in almost all human cells
View study That said, injecting subcutaneously in the general region of the injury is fine and common, as long as there is enough loose skin and fat to pinch and the skin there is clean and unbroken