CJC-1295 (without DAC) (Modified GRF 1-29)

Short-Acting Growth Hormone Releasing Hormone Analog

Overview

Synthetic growth hormone releasing hormone analog with short half-life enabling pulsatile GH secretion patterns resembling natural physiology. Unlike CJC-1295 with DAC, this version preserves natural GH pulsatility without continuous elevation.

Binds GHRH receptors on somatotroph cells in the pituitary gland, stimulating cAMP production and physiological GH pulses. The brief 30-minute half-life allows pulsatile release versus prolonged elevation.

Restores natural GH pulsatility patterns in aging individuals.

Elevates IGF-1 through enhanced GH secretion.

Supports pituitary axis without suppression of natural function.

Supports maintenance of lean muscle mass through GH elevation.

Mechanism

Restores natural GH pulsatility patterns in aging individuals.

Research areas

Synthetic growth hormone releasing hormone analog with short half-life enabling pulsatile GH secretion patterns resembling natural physiology. Unlike CJC-1295 with DAC, this version preserves natural GH pulsatility without continuous elevation.
Binds GHRH receptors on somatotroph cells in the pituitary gland, stimulating cAMP production and physiological GH pulses. The brief 30-minute half-life allows pulsatile release versus prolonged elevation.
Restores natural GH pulsatility patterns in aging individuals.
Elevates IGF-1 through enhanced GH secretion.
Supports pituitary axis without suppression of natural function.
Supports maintenance of lean muscle mass through GH elevation.
Supports bone health through GH-mediated pathways.
Improvements in skin quality through collagen synthesis.
Enhanced recovery from training through GH elevation.
Improved sleep architecture with bedtime dosing.

Research notes

Generally well-tolerated at recommended doses
Temporary facial flushing/warmth (5-10 minutes post-injection)
Persistent joint pain or carpal tunnel symptoms
Significant water retention or edema
Unexplained headaches or vision changes
Extreme fatigue or lethargy
Allergic reaction signs at injection sites
Active cancer (due to growth-promoting effects)
Diabetic retinopathy
Severe kidney disease
Pregnancy or breastfeeding

Pharmacokinetics

Synthetic growth hormone releasing hormone analog with short half-life enabling pulsatile GH secretion patterns resembling natural physiology. Unlike CJC-1295 with DAC, this version preserves natural GH pulsatility without continuous elevation.
Binds GHRH receptors on somatotroph cells in the pituitary gland, stimulating cAMP production and physiological GH pulses. The brief 30-minute half-life allows pulsatile release versus prolonged elevation.

References

FAQs

How many times per day should CJC-1295 (without DAC) be injected?

CJC-1295 without DAC typically requires 2-3 injections daily (morning, post-workout optional, and bedtime) with 100-300mcg per dose to maintain GH elevation. The 30-minute to 2-hour half-life necessitates multiple daily injections, unlike the weekly DAC variant.

What time of day is best to inject CJC-1295 without DAC?

Optimal timing is upon waking on an empty stomach and before bedtime, with an optional post-workout injection. Inject 30+ minutes away from food to maximize GH release. Bedtime dosing is particularly effective as it amplifies natural sleep-associated GH pulses.

Does CJC-1295 without DAC maintain natural GH pulsatility unlike the DAC version?

Yes, the non-DAC version preserves natural pulsatile GH secretion patterns with its 30-minute half-life, whereas DAC provides continuous elevation. This pulsatility is closer to physiology and results in fewer side effects like joint pain compared to continuous DAC stimulation, making it popular for anti-aging protocols.

Can CJC-1295 be stacked with GHRP peptides for better results?

Yes, combining CJC-1295 without DAC with GHRP-6 or GHRP-2 creates a synergistic 'stack' where the GHRH and GHRP work through complementary pathways to amplify GH release significantly beyond either peptide alone. This is the classic approach for maximizing growth hormone stimulation.