Free Reference Guide

The Category 1 Peptide
Quick Reference

Every peptide available for legal compounding in 2026 - what it is, what it's studied for, and current FDA status. One page. No fluff.

17 peptides tracked Updated for April 2026 Doctor-supervised access

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Your Category 1 Peptide Quick Reference

Current as of April 2026. Regulatory status can change - check our catalog for live updates.

Available Now 5 Category 1 peptides
Category 1

Sermorelin

Growth Hormone Secretagogue

The most well-studied GHRH analog available for compounding. Studied for growth hormone optimization, sleep quality, body composition, and recovery.

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Category 1

Low-Dose Naltrexone

Immune / Inflammation

An FDA-approved substance prescribed off-label at low doses. Studied for immune modulation and inflammation support. Oral capsule - no injection required.

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Category 1

NAD+

Longevity

Coenzyme involved in cellular energy metabolism. Available in injectable and sublingual formulations through licensed compounding pharmacies.

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Category 1

Glutathione

Antioxidant

Endogenous antioxidant with a USP monograph. Compounded in injectable form for doctor-directed use.

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Category 1

Gonadorelin

Hormonal Health

GnRH analog used in doctor-supervised hormonal support. Established compounding pathway.

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Coming Soon 12 Category 2 peptides - reclassification pending
Category 2

BPC-157

Recovery

The most in-demand recovery peptide. Studied for tissue repair, gut healing, and tendon and ligament support.

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Category 2

TB-500

Recovery

Studied for systemic tissue repair, inflammation reduction, and cardiac tissue support.

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Category 2

CJC-1295

Growth Hormone

GHRH analog studied for sustained growth hormone release. Commonly paired with Ipamorelin.

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Category 2

Ipamorelin

Growth Hormone

Growth hormone secretagogue studied for sleep quality, lean body composition, and recovery.

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Category 2

Thymosin Alpha-1

Immune

Studied for immune modulation and T-cell activation. Approved in 30+ countries outside the U.S.

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Category 2

AOD-9604

Metabolic

Peptide fragment studied for fat metabolism and body composition without affecting blood sugar.

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Category 2

Selank

Cognitive

Neuropeptide studied for stress resilience, focus, and immune modulation. Nasal spray formulation.

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Category 2

Semax

Cognitive

Nootropic peptide studied for BDNF enhancement, cognitive function, and neuroprotection.

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Category 2

KPV

Gut Health

Anti-inflammatory tripeptide studied for gut health and immune modulation.

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Category 2

MOTS-C

Metabolic

Mitochondrial peptide studied for metabolic regulation, insulin sensitivity, and exercise performance.

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Category 2

GHK-Cu

Anti-Aging

Copper peptide studied for skin remodeling, collagen synthesis, and wound healing.

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Category 2

Epitalon

Longevity

Tetrapeptide studied for telomerase activation, sleep cycle regulation, and anti-aging.

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Important: Compounded peptides are not FDA-approved medications. Category 1 status means a substance is eligible for compounding under section 503A - it is not the same as FDA drug approval. "Studied for" reflects preclinical or early-stage research, not proven efficacy. Category 2 peptides cannot currently be compounded and are shown for informational purposes only. All prescriptions require a doctor evaluation. Individual results vary. No outcomes are guaranteed.

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