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Peptide.Guide

FDA Category 2 · restricted from compounding

This compound is on the FDA’s interim Section 503A Category 2 bulks list and cannot be legally compounded by US pharmacies. An HHS announcement in February 2026 signaled intent to restore several peptides to Category 1, but no Federal Register action has been published. Check the FDA PCAC schedule for updates.

Read the full regulatory context
PreclinicalGrowth HormoneSubQDaily, 1–3x/day

CJC-1295 (No DAC)

Modified GRF 1-29 · Mod GRF

Short-acting GHRH analog that amplifies natural GH pulses. Almost always paired with a GHRP like Ipamorelin.

§ 01   Overview

Overview

Short-acting GHRH analog that amplifies natural GH pulses. Almost always paired with a GHRP like Ipamorelin.

Human PK studies exist; clinical outcome trials are limited. Widely used in research and compounding contexts.

§ 02   Mechanism

Mechanism of action

CJC-1295 without DAC is a tetrasubstituted GHRH(1-29) analog. It binds the GHRH receptor on the pituitary to amplify pulsatile GH release. Half-life is ~30 minutes, preserving natural pulsatility (vs. the DAC version which flattens pulses).

  • 01Synergizes with GHRPs to amplify GH pulses
  • 02Preserves physiological pulsatility
  • 03Supports recovery, sleep, and body composition

§ 03   Dosing

Dosing protocol

Standard Protocol

Vial
5 mg
BAC Water
2 ml BAC water
Dose Range
100 – 300 mcg per dose
Starting Dose
100 mcg with 100 mcg Ipamorelin
Route
SubQ
Timing
Before bed, empty stomach
Frequency
Daily, 1–3x/day
Cycle
8–12 weeks on, 4 off

§ 04   Evidence

Evidence & research

Preclinical

Human PK studies exist; clinical outcome trials are limited. Widely used in research and compounding contexts.

FDA Status

Not FDA-approved.

§ 05   Stacks

Common stacks

§ 06   News

In the news

1 article from the last 12 months · updates hourly

§ 07   Sourcing

Sourcing & supply

Regulatory status

Restricted from compounding

Placed on the FDA's 503A Category 2 list and cannot be lawfully compounded in the US. No brand pharmacy alternative exists. US buyers encounter only research-use-only (RUO) channels, which the FDA's Intended Use Doctrine treats as unapproved drug sales.

503B pharmacies · 2

503B pharmacy

Belmar Pharma Solutions

Rx required

Webster Equity portfolio. Triple-credentialed (PCAB + NABP + LegitScript), licensed in all 50 states. Among the most credentialed operators.

FDA 503B Registered +31 flag on record
503B pharmacy

Hallandale Pharmacy (Pharmcore)

Rx required

503A with historic warning letter (2020, closed out 2022). Major telehealth fulfillment partner.

1 flag on record
Visit

Telehealth (Rx) · 3

Telehealth

Defy Medical

Rx required

Broadest peptide formulary in legitimate US telehealth. 13-year history, concierge cash-pay, no known lawsuits.

Visit
Telehealth

Marek Health

Rx required

Premium hormone optimization. All 50 states. 4.8 Trustpilot. Partners include Hallandale.

Visit
Telehealth

Blokes / Joi Women's Wellness

Rx required

Men's + women's optimization platform. TRT in 34 states. 4.6–4.8 Trustpilot.

Visit

International · 3

International

Trident Peptides

1,299+ Trustpilot reviews (5-star). Strongest review base in UK research peptides. No visible ISO/GMP; COAs not posted.

1 flag on record
Visit
International

Direct Peptides

Multi-region geo-routed mirrors. Multiple credible scam complaints. Documented customs seizures. Avoid absent stronger evidence.

2 flags on record
Visit
International

Canlab

Health Canada public warning December 2023. Operates across mirror domains to evade takedowns. Avoid.

2 flags on record
Visit

Research-use-only · 7

Research-use-only

Swiss Chems

Established SARMs/peptide vendor. FDA warning letter Dec 2024 for GLP-1s. Weaker peptide QC than SARMs QC.

Third-Party Testing1 flag on record
Visit
Research-use-only

Limitless Life Nootropics

'Only BBB-accredited peptide company' (since 2020). Claims three-lab third-party testing. Broad catalog.

BBB Accredited +1
Visit
Research-use-only

Core Peptides

Broad catalog, widest payment range. Mid-credibility: Knoji 2.5/5 and one scam-impersonation report.

Third-Party Testing1 flag on record
Visit
Research-use-only

Ascension Peptides

Among newer RUO vendors with cleaner credibility signals. SafeCert Labs (CLIA-certified) testing, 4.8 Trustpilot. US-only.

Third-Party Testing
Visit
Research-use-only

Modern Aminos

Multi-vial batch third-party testing. 5-star Trustpilot (1,400+ reviews). US- and EU-facing.

Third-Party Testing
Visit
Research-use-only

Peptide Warehouse

US-made, independent third-party testing including endotoxin and heavy-metal panels. Distinct from similar-sounding copycat domains.

Third-Party Testing1 flag on record
Visit
Research-use-only

BioTech Peptides

Claims >99% purity via HPLC + MS. Accepts cards and PayPal. 30-day money-back.

Third-Party Testing1 flag on record
Visit

Listings are informational, not endorsement. Verify credentials and flags against FDA and PCAB databases before purchasing. Full directory & how to verify →

§ 09   Safety

Safety & side effects

Side effects

  • 01Injection site flushing
  • 02Water retention at higher doses

Contraindications

None specified.

This site is for educational and research purposes only. It does not constitute medical advice. Always consult a qualified healthcare provider before using any peptide or supplement.