CJC-1295 DAC vs. CJC-1295 No DAC
CJC-1295 DAC and CJC-1295 (also known as Modified GRF 1-29) are both Growth Hormone Releasing Hormones (GHRH). Their action in the human body is identical but the difference between the two peptides are the span of the half-life. Modified GRF 1-29 and Sermorelin have a very short acting half-life of about 30 minutes, while CJC-1295 DAC has a half-life that can last up to approximately 8 days. Many a scientist have reported that the short half-life of Sermorelin and Modified GRF 1-29 is considered to be much more natural as they produce a short pulse of Human Growth Hormone.
The evidence for this argument results from understanding what esters are - the main variable in comparing esters is their affinity towards water retention, and at what rates the sub-cutaneous water retention is experienced. Experienced AAS users will strongly agree that the water retention experienced through running a long-estered variant such as testosterone enanthate in comparison to testosterone propionate (whereby the main compound in each product is testosterone) is significantly higher. Therefore, these experienced AAS users will tend to use the longer estered variants in their off-season and the short ester variants towards pre-contest preparations. Additionally, these sides such as increased water retention from long-estered testosterone help increase the chances of obtaining other sides such as gyno.
Follistatin (FST) is a secreted glycoprotein that was first identified as a folliclestimulating hormone inhibiting substance in ovarian follicular fluid (1, 2). Human Follistatin cDNA encodes a 344 amino acid (aa) protein with a 29 aa signal sequence, an Nterminal atypical TGF binding domain, three Follistatin domains that contain EGFlike and kazallike motifs, and a highly acidic Cterminal tail. Follistatin is a secreted protein that binds to ligands of the TGF-Beta family and regulates their activity by inhibiting their access to signaling receptors. It was originally discovered as activin antagonists whose activity suppresses expression and secretion of the pituitary hormone FSH (follicle stimulating hormone). In addition to being a natural antagonist, follistatin can inhibit the activity of other TGF-Beta ligands including BMP-2,-4,-6,-7, Myostatin, GDF-11, and TGF-Beta1. Follistatin is expressed in the pituitary, ovaries, decidual cells of the endometrium, and in some other tissues. Recombinant human Follistatin 315 is a kDa protein containing amino acids 30-344 of the FST-344 protein.