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This bioactive compound is derived from the pineal gland, the small endocrine gland in the brain responsible for producing melatonin and regulating circadian rhythms
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Its role complements GHK-Cu: TB-4 helps position the repair cells, while GHK-Cu handles more of the matrix-building work
People with kidney disease should consult their nephrologist before supplementation, as impaired renal function may affect glutathione metabolism and excretion
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