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Peptide Database

Goals
Fat LossMuscle BuildingInjury HealingAnti-AgingCognitive EnhancementSleep OptimizationImmune SupportGut HealingSkin RejuvenationSexual Health
Peptides
Abarelix
Hormone Support
Acetyl Hexapeptide-3 (Argireline)
Cosmetic
Adipotide
Weight Management
Adrenomedullin
Healing & Recovery
Alexamorelin
Growth Hormone
Angiotensin (1-7)
Healing & Recovery
AOD-9604
Weight Management
Apelin-13
Healing & Recovery
ARA-290 (Cibinetide)
Healing & Recovery
Bestatin (Ubenimex)
Immune
BPC-157
Healing & Recovery
Buserelin
Hormone Support
Cagrilintide
Weight Management
Capromorelin
Growth Hormone
Cartalax
Anti-Aging
Cathelicidin (hCAP-18 / Synthetic Derivatives)
Immune
Cerebrolysin
Cognitive
Cerluten
Cognitive
Cetrorelix
Hormone Support
Chonluten
Immune
CJC-1295 (No DAC)
Growth Hormone
CJC-1295 with DAC
Growth Hormone
Copper Tripeptide-1 (GHK-Cu)
Cosmetic
Cortexin
Cognitive
Crystagen
Immune
Daptomycin
Immune
Defensin (HBD-2)
Immune
Defensin (HBD-3)
Immune
Degarelix
Hormone Support
Dihexa
Cognitive
DSIP (Delta Sleep-Inducing Peptide)
Sleep & Recovery
Dulaglutide
Weight Management
Enalapril
Healing & Recovery
Epithalon
Anti-Aging
Exenatide
Weight Management
Fertirelin
Hormone Support
Ganirelix
Hormone Support
GHK-Cu
Cosmetic
GHRH (1-29)
Growth Hormone
GHRP-2
Growth Hormone
GHRP-6 (Growth Hormone Releasing Peptide-6)
Growth Hormone
Gonadorelin (GnRH)
Hormone Support
Gramicidin
Immune
Hexarelin
Growth Hormone
Human Chorionic Gonadotropin (HCG)
Hormone Support
Human Growth Hormone (HGH)
Growth Hormone
IGF-1 LR3
Growth Hormone
Immunoxel (Dzherelo)
Immune
Imunofan
Immune
Intermedin (Adrenomedullin-2)
Healing & Recovery
Ipamorelin
Growth Hormone
Kisspeptin-10
Sexual Health
KPV (Alpha-MSH Fragment)
Healing & Recovery
Lactoferricin B
Immune
Larazotide
Healing & Recovery
Lentinan
Immune
Leuphasyl
Cosmetic
Leuphasyl
Cosmetic
Leuprolide
Hormone Support
Liraglutide
Weight Management
Livagen
Anti-Aging
Lixisenatide
Weight Management
LL-37
Immune
Macimorelin
Growth Hormone
Magainin-2
Immune
Mazdutide
Weight Management
Melanotan-2
Cosmetic
MK-677 (Ibutamoren)
Growth Hormone
MOTS-c
Metabolic
Myristoyl Pentapeptide-17
Cosmetic
N-Acetyl Selank
Cognitive
N-Acetyl Semax Amidate
Cognitive
NAD+
Mitochondrial
Nafarelin
Hormone Support
Natriuretic Peptide (ANP)
Healing & Recovery
Nesiritide (BNP)
Healing & Recovery
Nisin
Immune
Noopept (Omberacetam)
Cognitive
Orforglipron
Weight Management
Ovagen
Anti-Aging
Oxytocin Acetate
Hormone Support
P21 (P021)
Cognitive
PACAP-38
Healing & Recovery
Palmitoyl Oligopeptide
Cosmetic
Palmitoyl Pentapeptide-4 (Matrixyl)
Cosmetic
Palmitoyl Tetrapeptide-7
Cosmetic
Palmitoyl Tripeptide-1
Cosmetic
Pancragen
Metabolic
PEG-MGF
Healing & Recovery
Pemvidutide
Weight Management
Pentadecapeptide (BPC Analog)
Healing & Recovery
Pidotimod
Immune
Pinealon
Cognitive
PNC-27
Immune
Polymyxin B
Immune
Pralmorelin (GHRP-2)
Growth Hormone
Pramlintide
Weight Management
Prostamax
Hormone Support
PT-141 (Bremelanotide)
Sexual Health
Relaxin-2 (Serelaxin)
Healing & Recovery
Retatrutide
Weight Management
Selank
Cognitive
Semaglutide
Weight Management
Semax
Cognitive
Sermorelin
Growth Hormone
Setmelanotide
Weight Management
SLU-PP-332
Metabolic
SM-130686
Growth Hormone
Snap-8
Cosmetic
SS-31 (Elamipretide)
Mitochondrial
Substance P Antagonists
Healing & Recovery
Survodutide
Weight Management
SYN-AKE
Cosmetic
Tabimorelin
Growth Hormone
TB-500
Healing & Recovery
Tesamorelin
Growth Hormone
Testagen
Hormone Support
Thymalin
Immune
Thymopentin (TP-5)
Immune
Thymopoietin
Immune
Thymosin Alpha-1
Immune
Thymosin Beta-4
Healing & Recovery
Thymulin (FTS)
Immune
Thymulin Analog (PAT)
Healing & Recovery
Tirzepatide
Weight Management
Tripeptide-29
Cosmetic
Triptorelin
Hormone Support
Ularitide
Healing & Recovery
Urocortin
Healing & Recovery
Ventfort
Anti-Aging
Vesilute
Hormone Support
Vilon
Immune
VIP (Vasoactive Intestinal Peptide)
Healing & Recovery
Xenin-25
Metabolic
Ziconotide (Prialt)
Healing & Recovery
Total Peptides: 135
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Peptide Comparison

AdrenomedullinvsThymosin Beta-4

A powerful vasodilatory peptide that relaxes blood vessels and helps your body maintain healthy fluid balance and blood pressure.

The body's natural healing peptide that accelerates tissue repair and reduces inflammation

Healing & RecoveryHealing & Recovery

At a Glance

Quick
comparison

Dose Range

Adrenomedullin

As prescribed–As prescribed mg

Thymosin Beta-4

2–5 mg

Frequency

Adrenomedullin

Once daily

Thymosin Beta-4

Twice weekly

Administration

Adrenomedullin

Intravenous infusion

Thymosin Beta-4

Subcutaneous injection

Cycle Length

Adrenomedullin

Ongoing/indefinite

Thymosin Beta-4

8-12 weeks

Onset Speed

Adrenomedullin

Moderate (1-2 weeks)

Thymosin Beta-4

Moderate (1-2 weeks)

Evidence Level

Adrenomedullin

Moderate human trials (Phase 1-2)

Thymosin Beta-4

Moderate human trials (Phase 1-2)

Efficacy

Benefit
ratings

Adrenomedullin
Thymosin Beta-4

Cardiovascular Support

Adrenomedullin82%
Thymosin Beta-40%

Tissue Protection

Adrenomedullin78%
Thymosin Beta-40%

Immune Function

Adrenomedullin74%
Thymosin Beta-40%

Wound Healing

Adrenomedullin0%
Thymosin Beta-495%

Inflammation Reduction

Adrenomedullin0%
Thymosin Beta-488%

Tissue Regeneration

Adrenomedullin0%
Thymosin Beta-492%

Technical Data

Compound
specifications

Adrenomedullin

Molecular Formula

C264H406N80O77S3

Molecular Weight

6029 Da (Daltons)

Half-Life

Approximately 20-30 minutes in plasma (rapid metabolism)

Bioavailability

Parenteral administration only; peptide undergoes proteolytic cleavage in circulation

CAS Number

148498-78-6

Thymosin Beta-4

Molecular Formula

C212H350N56O78S

Molecular Weight

4963

Half-Life

Dose-dependent (increases with higher doses)

Bioavailability

100% (subcutaneous and intravenous)

CAS Number

77591-33-4

Applications

Best
suited for

Adrenomedullin

Cardiovascular health optimization

Adrenomedullin is particularly well-suited for individuals focused on cardiovascular health optimization. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

Maintaining healthy blood pressure

Adrenomedullin is particularly well-suited for individuals focused on maintaining healthy blood pressure. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

Recovery from illness or sepsis

Adrenomedullin is particularly well-suited for individuals focused on recovery from illness or sepsis. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

Tissue protection and oxygen delivery

Adrenomedullin is particularly well-suited for individuals focused on tissue protection and oxygen delivery. Research and clinical experience suggest meaningful benefits in this area when used as part of a comprehensive treatment approach.

Thymosin Beta-4

Post-Surgery Recovery

Accelerates healing of surgical wounds and reduces post-operative inflammation and scarring

Chronic Wound Management

Helps pressure ulcers, venous stasis ulcers, and other slow-healing wounds progress faster

Tissue Regeneration

Supports repair of damaged tissues from injury, burns, or degenerative conditions

Safety Profile

Side
effects

Adrenomedullin

Common

  • Mild discomfort at treatment site
  • Excessive blood pressure lowering (hypotension)
  • Headaches (from pressure changes)
  • Flushing and mild facial redness
  • Dizziness or lightheadedness
  • Mild electrolyte shifts
  • Localized injection site reactions
  • Increased urination (natriuretic effect)

Serious

  • Severe allergic reaction

Thymosin Beta-4

Common

  • Injection site redness
  • Injection site swelling

Uncommon

  • Temporary mild headache
  • Mild bruising at injection site
  • Transient fatigue

Serious

  • Allergic reaction

Research Status

Safety
& evidence

Adrenomedullin

Evidence Level

Moderate human trials (Phase 1-2)

FDA Status

Research compound

Safety Overview

Adrenomedullin safety in humans is poorly characterized, with clinical data limited to observational studies and small uncontrolled trials in cardiovascular patients. Animal studies demonstrate potent vasodilatory effects that could lower blood pressure dangerously, particularly in patients on antihypertensive medications. No human pharmacokinetic studies have established safe doses, and potential for hypotension, electrolyte disturbances, and off-target vasodilation effects exists. The peptide crosses the blood-brain barrier and affects central nervous system function in animal models, raising concerns about neurological effects at higher doses.

Contraindications

  • xSevere hypotension or shock states
  • xConcurrent use with certain vasopressor medications
  • xPregnancy and breastfeeding
  • xSevere kidney or liver dysfunction

Thymosin Beta-4

Evidence Level

Moderate human trials (Phase 1-2)

FDA Status

Research compound

Safety Overview

Thymosin Beta-4 is a naturally occurring peptide found in all cells and body fluids in the human body. Clinical trials have demonstrated excellent safety even at very high doses. IV studies showed doses up to 1260 mg were well tolerated with no serious adverse events.

Contraindications

  • xActive systemic infections
  • xSevere immunosuppression
  • xHypersensitivity to thymosin or any component
  • xPregnancy (insufficient safety data)

Decision Guide

Which is
right for you?

Choose Adrenomedullin if...

  • Cardiovascular health optimization
  • Maintaining healthy blood pressure
  • Recovery from illness or sepsis
  • Tissue protection and oxygen delivery

Choose Thymosin Beta-4 if...

  • Recovering from injuries or surgery
  • Improving wound healing speed
  • Reducing inflammation
  • Minimizing scar formation
Peptide ProAdrenomedullin vs Thymosin Beta-4 — Peptide Comparison | Peptide Initiative