In pharmacokinetic characterization, the DAC-modified peptide had a plasma half-life of roughly 8 days — extending its circulating lifetime from minutes to more than a week.
Reported half-life after albumin binding.
Search peptides — top sellers first
Search peptides — top sellers first
Search peptides — top sellers first
One dose, ~8 days of steady GH signaling
Made in USA — Synthesized in our cGMP-compliant US facility
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Frequently bought together
Researchers usually add these to complete the protocol.

BAC Water · 3ml
Essential · extras

GHK-CU · 50mg
recovery

Melanotan 2 · 10mg
Tanning
CJC-1295 with DAC · 5mg
Certificate of analysis
We don't publish a brand-wide spec sheet and call it a “COA.” The certificate you receive references the actual lot number stamped on your vial — with the raw chromatograms attached.
Freedom Diagnostics
Independent analytical lab
Certificate of Analysis
RESULT · PASS
Analytical results
HPLC Chromatogram
Main peak 99.46% · other 0.54%
Alex Johnson
Principal Chemist
Scanned 7×
Know your compound
CJC-1295 with DAC is a long-acting version of the growth-hormone-releasing peptide CJC-1295. The DAC (Drug Affinity Complex) latches onto albumin, a protein in blood, so the peptide sticks around far longer instead of clearing in minutes.
Most GH-releasing compounds fire in short bursts; this one holds hormone levels up for days, which is exactly what researchers want when they need a steady baseline instead of pulses. That stability makes it a useful tool for studying the GH–IGF-1 axis over multi-day windows.

For research use only — not for human or veterinary use.
The research
The published findings behind this compound — the headline numbers, in plain terms, each cited to source. Preclinical results are directional (animal / in-vitro) and shown for context, not as therapeutic claims.
In pharmacokinetic characterization, the DAC-modified peptide had a plasma half-life of roughly 8 days — extending its circulating lifetime from minutes to more than a week.
Reported half-life after albumin binding.
In preclinical work, GH and IGF-1 stayed elevated across a multi-day window rather than dropping back to baseline between pulses — the kind of steady signal researchers want for studying the GH–IGF-1 axis.
Directional; the sustained arm holds elevation between pulses.
Reviewers attribute the long duration to the Drug Affinity Complex (DAC), which binds serum albumin to slow the body's clearance of the peptide versus the unmodified form.
Mechanistic; relative circulation time, not a measured value.

Mechanism
A long-acting growth-hormone-releasing research peptide studied across the GH–IGF-1 axis.
Studied for binding the growth-hormone-releasing-hormone receptor to prompt GH secretion.
Investigated for holding growth-hormone levels elevated over multi-day windows via albumin binding.
Researched for the downstream rise in IGF-1 across the GH axis.
For research use only. Mechanisms described reflect published research literature.
The process
Synthesized
Produced under controlled manufacturing with documented, repeatable processes.
HPLC purity
An independent lab reports the exact purity of every lot — a number, never a 'passes'.
Mass-spec identity
Molecular weight confirms the exact sequence is what the label says.
COA published
The certificate is posted to the open library, by lot, before the vial ships.
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FAQ
Common questions about CJC-1295 with DAC
The COA guarantee
Have any lot independently re-tested. If the results don't match the published certificate, we refund the order in full — no returns, no questions.
Order with coverThird-party tested
An independent, accredited lab — no commercial interest in the result.
A COA on every lot
A lot-specific certificate ships with each vial, archived by batch.
Test it yourself → refund
Re-test any batch at any lab. A mismatch is a full refund.