US$ 23.82
ghk cu pros and cons GHK-Cu Peptide GHK-Cu for Anti-Aging: Does This
Description
More Info Physical Appearance Stability Solubility Amino Acid Sequence Background Delta Sleep-Inducing Peptide (DSIP), also known as Sleep-Promoting Peptide, is a neuropeptide that has been the subject of extensive research due to its potential role in sleep regulation, stress response, and neuroprotection

It is also produced endogenously when ultraviolet rays from sunlight strike the skin and trigger vitamin D synthesis

doi: 10.3238/arztebl.2008.0680

Peptidomics: Identification and quantification of endogenous peptides in neuroendocrine tissues