CJC-1295 DAC and CJC-1295 (also known as Modified GRF 1-29) are both of 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.

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