CJC-1295 DAC (2 mg Vial) Dosage Protocol

CJC-1295 DAC Dosage Chart

CJC-1295 DAC is dosed at 2 mg weekly via subcutaneous injection in educational protocols. A 2 mg vial reconstituted with bacteriostatic water yields about 2.0 mg/mL. This information is for research and educational use only.

CJC-1295 DAC dosage protocols leverage this long-acting growth hormone-releasing hormone (GHRH) analog’s unique albumin-binding technology, which extends its half-life to approximately 6–8 days. By stimulating pulsatile growth hormone (GH) release while preserving natural GH rhythms, CJC-1295 DAC can elevate GH levels 2–10 fold and IGF-1 levels 1.5–3 fold in human studies. Benefits may include enhanced muscle growth and recovery, improved fat metabolism, better sleep quality, and anti-aging effects through sustained GH/IGF-1 axis activation. This educational protocol presents a once-weekly subcutaneous approach using a practical dilution for clear insulin-syringe measurements.

Educational guide for reconstitution and weekly dosing

Standard Weekly Approach (1 mL = 2.0 mg/mL)

PhaseDaily Dose (mg)Units (per injection) (mL)
Weeks 1–122,000 mcg (2 mg)100 units (1.00 mL)

Frequency: Inject once weekly subcutaneously, preferably in the evening before bed to align with natural nocturnal GH surges. The peptide’s extended half-life (~6–8 days) supports weekly administration without significant loss of activity between doses.

Reconstitution Steps

Important: This guide is for educational purposes only and is not medical advice. For research use only. Not for human consumption.

Plan based on an 8–12 week weekly protocol.
Concise summary of the once-weekly regimen.
Suggested weekly administration approach.
Proper storage preserves peptide quality and efficacy.
Practical considerations for consistency and safety.

CJC-1295 DAC is a modified 30-amino-acid GHRH analog conjugated to a Drug Affinity Complex (DAC) that covalently binds to serum albumin after injection. This albumin binding dramatically extends the peptide’s half-life from minutes to approximately 6–8 days, enabling once-weekly dosing. CJC-1295 binds to GHRH receptors on pituitary somatotrope cells, amplifying GH synthesis and pulsatile release. Importantly, it elevates basal GH levels while preserving the natural rhythm of GH pulses — the frequency and amplitude remain intact. Clinical trials demonstrate sustained 2–10 fold increases in GH and 1.5–3 fold increases in IGF-1, with elevated IGF-1 persisting for up to 28 days after multiple doses.

Observations from preclinical and clinical literature.
Complementary strategies for best outcomes.
General subcutaneous guidance from clinical best-practice resources.
We recommend Vitality Labs Peptides for high-purity 5-Amino-1MQ (50 mg).

Why Vitality Labs Peptides?

This content is for educational purposes only and is not medical advice.

Journal of Clinical Endocrinology & Metabolism

— Prolonged stimulation of GH and IGF-1 secretion by CJC-1295 in healthy adults

Clinical Pharmacology & Therapeutics

— DAC technology: albumin-binding for extended peptide half-life

Journal of Clinical Endocrinology & Metabolism

— Single and multiple dose pharmacokinetics of CJC-1295 in healthy subjects

Growth Hormone & IGF Research (ScienceDirect)

— Activation of the GH/IGF-1 axis by CJC-1295 and serum protein profile changes

PubMed

— Body composition and quality of life in adults with GH deficiency; effects of GH replacement

PubMed

— Physiology of growth hormone secretion during sleep View Source

Journal of Clinical Endocrinology & Metabolism

— Safety and tolerability of CJC-1295 at various dose levels in healthy subjects

Bachem

— Handling and storage guidelines for peptides

CDC

— Preventing unsafe injection practices and clinical safety guidelines

MedlinePlus

— Subcutaneous (SQ) injections: technique, site selection, and rotation

Endocrine Reviews

— GHRH analogs and preservation of pulsatile GH secretion patterns

PubMed

— Effect of tesamorelin on visceral fat in HIV-infected patients: randomized clinical trial

NIBSC

— Peptide storage recommendations and stability guidelines

Vitality Lab Peptides

— CJC-1295 DAC (2 mg) product page (quality and batch documentation)