arnold schwarzenegger bpc 157 Mr. Olympia - Ironman Bodybuilding Magazine - July 1975 Professional bodybuilder Arnold Schwarzenegger posing
Description
TB-500 may inhibit apoptosis in corneal epithelial cells by inhibiting caspases and suppressing the release of pro-apoptotic protein bcl-2 from mitochondria

This depends on the individual pain tolerance, needle size, injection technique, and injection site

At 5 mg/mL, 25 units = 1.25 mg

It is not a peptide
