Speaking of CJC-1295 without DAC (also called Mod GRF 1-29), this is the complete opposite of the "long-acting version" mentioned earlier-a short-pulse drug! It lacks the long tail of DAC, resulting in a half-life of only about 30 minutes. However, its advantage lies in perfectly mimicking the physiological pulses of human growth hormone (GH) secretion, avoiding the sustained high concentrations and being more compatible with pituitary receptors, making it less prone to desensitization.
It's a synthetic GHRH analog composed of 29 amino acids, which, through mutations at several sites (such as D-Ala substitution), withstands rapid cleavage by enzymes in the body. Its core function is to "pump" the GHRH receptors in the anterior pituitary gland, causing the body to release GH and subsequent IGF-1 in a pulsed rhythm. Research focuses primarily on muscle gain and fat loss, tissue repair, deep sleep quality, and anti-aging. Furthermore, it's a recognized "golden pairing" with Ipamorelin, exhibiting strong synergistic effects when used together.
Core Advantages and Functions
Pulsed Supraphysiological Effect: Unlike the DAC version, which produces a flat, high concentration, it delivers a sharp GH pulse peak, almost identical to the natural secretion rhythm of youthful hormones, resulting in better retention of receptor sensitivity.
Short-acting and Controllable: Metabolized within half an hour, it requires 1-3 doses daily (often administered during the natural GH window: fasting, after exercise, or before bedtime). The timing and dosage offer great flexibility in experimental settings, making it ideal for research scenarios where sustained high GH levels are undesirable.
Relatively Fewer Side Effects: Due to the absence of a sustained GH/IGF-1 spike, reactions such as water retention and limb numbness observed in studies are generally milder than with the DAC version.
Synergistic Effect: When used with GHRP-based peptides (such as Ipamorelin), it can amplify pulse amplitude and complement mechanisms, making it a common combination in body composition and repair research.
Storage Conditions:
Tightly cap the lyophilized peptide powder and keep it away from light, dryness, and moisture throughout the storage process. For long-term storage, aliquot into individual sealed tubes and freeze at -20°C away from light. Repeated freeze-thaw cycles are strictly prohibited. Repeated thawing and hydrolysis of the peptide chains will directly weaken growth hormone secretion activity; no visible change may be observed, but experimental peak data will be significantly lower.
Prepared sterile working solutions should be refrigerated at 2–8°C and used within 7 days. Prolonged storage can lead to oxidation, bacterial growth, and the liquid becoming cloudy or yellow; discard immediately.
Keep away from windowsills, heating equipment, and humid reagent cabinets. Store separately labeled and categorized. Do not mix with strong acids or strong oxidizing reagents. Low-temperature, light-protected transportation is recommended; prolonged high-temperature storage will irreversibly degrade peptide activity.
Precautions:
This product is for compliant laboratory cell and animal research use only. There is no complete long-term human safety clinical data available. Personal dilution for injection or oral administration is strictly prohibited. Misuse may disrupt endocrine balance, causing edema and abnormal blood sugar levels.
Wear gloves and goggles when handling the powder. The powder is highly dusty; avoid inhalation or contact with eyes, nose, or skin. In case of accidental contact, immediately rinse thoroughly with plenty of running water.
Use only pH-neutral sterile buffer solution for dissolution. Strong acids and alkalis will destroy the peptide chain structure, completely eliminating GH secretion-promoting activity.
This product is contraindicated in growth hormone-dependent tumors, pituitary hyperplasia, and severe diabetes models, as it may exacerbate abnormal lesion indicators and severely interfere with experimental observations.
Perform sterile procedures throughout the solution preparation process. Open the cap as quickly as possible each time to minimize prolonged exposure to air and oxidation of the powder.
All experimental waste liquid and remaining dry powder must be disposed of as hazardous biochemical waste. Do not dispose of directly down the drain.
Store in a lockable, dry storage cabinet, away from children and pets to prevent accidental ingestion.
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