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Potential endpoints include: Dermal papilla cell viability Cell proliferation Growth-factor-associated measurements Extracellular-matrix markers Hair-cycle gene expression Organoid morphology Follicular structural measurements Time-dependent cellular responses Changes in follicular-cell markers do not establish hair growth, reduced hair loss, or a successful hair-regrowth application

These drugs are still being tested in large clinical trials

The strongest human evidence is short-term endocrine pharmacology: GHRP-2 reliably and rapidly releases growth hormone, synergizes with GHRH, and works well enough as a GH-stimulation test to be an approved diagnostic agent in Japan

8 , 14835 doi: 10.1038/ncomms14835 (2017)

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This compound is frequently included in broader experimental programs where consistent capsule formatting and clear specifications are important