Proc Natl Acad Sci USA 100 : 82478252 Hankinson SE, Willett WC, Colditz GA, Hunter DJ, Michaud DS, Deroo B, Rosner B, Speizer FE, Pollak M (1998) Circulating concentrations of insulin-like growth factor-I and risk of breast cancer
For the full peptide profile, mechanisms, and research bibliography, see the GHK-Cu peptide page
The most noticeable benefit after only a few hours of initial injection is increased energy
They result from nicking a small blood vessel during needle insertion
This is reasonably close to the experimental barrier of 18.5 kcal mol 1 (Tse et al., 1976) at pH value of 7.4, considered that experimental determination of pK a values of reaction intermediates and ionizable protein groups is not easy (Mildvan et al., 2002