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While Western clinical trial data on the specific combination is limited, the individual evidence bases for each peptide are substantial, and their mechanisms are complementary rather than redundant

Low SHBG levels cause an increase in free testosterone (fT) in the blood, which is converted into DHT by the enzyme 5--reductase (184)

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Product labeling is inconsistent, so the two are closely related but not guaranteed to be identical

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TB4 is a 43 amino acid peptide found in most human cells, and is under active research for its potential effects on cell migration, namely the migration of progenitor cells