ghk-cu peptide injection or topical GHK-Cu Peptide Therapy: The Definitive

Preclinical observations in animal and cell culture studies have included enhanced cellular migration, increased markers of angiogenesis, and enhanced collagen deposition

You end up with a concentration you didn't intend, which throws off all subsequent dosing and measurements

In such cases, the subject still technically has PD, but the quality of life of the subject is significantly improved because the progression of symptoms is slowed, or even stopped (arrested) at an earlier stage than would be possible without administration of the HGF mimic(s), e.g

Short-term temperature fluctuations during transport do not reduce their quality or stability