ghk-cu levels decline with age - Peptide for Collagen, Healing & Anti-Aging ghk cu plasma levels age

Neurobiol Aging 76:201207

Seniors often see dramatic improvements because glutathione production naturally declines with age

The most common polymorphisms of GSTM1-1 and GSTT1-1 gene loci consist in the complete deletion of the genes

When framed as a conceptual blend, these peptides provide a fertile platform for generating new hypotheses in regenerative biology, molecular signaling research, systems biology, and structural biochemistry

Some report improved sleep quality, possibly related to reduced pain allowing better rest

Remember that natural or not a drug (as peptides are sometimes marketed) does not equal safe many powerful hormones and growth factors are natural and can also fuel diseases like cancer if misused