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Tesamorelin acts by stimulating pituitary somatotroph cells to release endogenous growth hormone in a pulsatile, physiologic pattern

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Even then, bioavailability reached only about 1%

For instance, one study found that the peptide MK-677 was able to boost growth hormone levels in older adults, suggesting its potential benefits for muscle-building and anti-ageing

It is a preview of what medicine may soon face across an entire generation of aesthetic, performance-enhancing, and wellness-oriented peptides