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TB-500 also appears to be generally well-tolerated, but again, safety data derived from adequately powered clinical trials is lacking

Long-term watch items beyond the common GI events that fade within weeks include gallbladder disease (cholelithiasis 1.1% in trials), acute kidney injury (0.5%), and rare cases of pancreatitis (under 1%)

If you are comparing BPC-157 vs TB-500 , the short answer is that they are usually discussed as complementary healing peptides rather than true substitutes

Suitability should always be assessed on an individual basis, with a qualified physician considering overall health, skin condition, and treatment goals to ensure safe and appropriate use