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Peptide Database

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Peptides
5-Amino-1MQ
Weight Management
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
CagriSema
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
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
FOXO4-DRI
Anti-Aging
Ganirelix
Hormone Support
GHK-Cu (Copper Peptide)
Cosmetic
GHRH (1-29)
Growth Hormone
GHRP-2
Growth Hormone
GHRP-6 (Growth Hormone Releasing Peptide-6)
Growth Hormone
Glutathione
Anti-Aging
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
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: 137
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Condition Spotlight

Traumatic Brain
Injury Recovery

A traumatic brain injury doesn't just damage neurons on impact - it sets off a cascade of cellular destruction that can continue for months or years. We're talking neuroinflammation, excitotoxicity, mitochondrial dysfunction, and progressive neurodegeneration. But emerging peptide therapies are showing real promise in stopping this cascade and rebuilding what's been damaged.

Written by Michael Carroll — Owner, Director of Research · Reviewed by the Peptide Initiative Research Team · Editorial standards

The Problem

Impact Triggers
A Cascade of Destruction

Cognitive Dysfunction

Memory loss, concentration problems, slower processing

Mood and Behavioral Changes

Depression, anxiety, irritability, personality shifts

Physical Symptoms

Headaches, dizziness, balance problems, fatigue

Understanding the Damage

The Secondary Injury Cascade

When a traumatic brain injury occurs, the initial impact causes immediate physical damage. But what happens in the hours and days after is equally destructive, if not more so. The primary impact tears axons (neural connections), damages cell membranes, and causes bleeding. This triggers neuroinflammation - your immune system floods the area with inflammatory molecules. Simultaneously, excitotoxicity sets in: damaged neurons release excessive glutamate, which over-stimulates surrounding neurons, causing them to die even though they weren't directly damaged. This is compounded by mitochondrial dysfunction. Injured neurons can't produce enough ATP. Oxidative stress increases dramatically as reactive oxygen species accumulate. Cell death cascades continue, sometimes for months.

"The brain's response to injury can be as destructive as the injury itself."

This is where peptide therapy becomes critical. By reducing inflammation, protecting neurons from excitotoxicity, supporting mitochondrial function, and promoting neuronal regeneration, peptides can interrupt this cascade and give your brain the opportunity to rebuild.

The Solutions

5 Peptides
5 Angles of Attack

1970s (Russian Research)

Semax

The Neuroprotective Enhancer

A synthetic peptide fragment derived from adrenocorticotropic hormone (ACTH) that enhances neuroprotection and cognitive recovery in brain injuries.

Role

Activating the brain's natural repair systems

1991

BPC-157

The Structural Rebuilder

A body protection compound derived from gastric juice that promotes healing of damaged tissue and protects neurons from injury.

Role

Construction crew rebuilding damaged neural architecture

1980s (European Research)

Cerebrolysin

The Clinical-Grade Neuroprotector

A complex of neuroactive peptides derived from porcine brain tissue with extensive clinical data in TBI and stroke recovery.

Role

A cocktail of natural brain-healing compounds

1981

Thymosin Beta-4

The Regeneration Catalyst

A naturally occurring peptide that regulates growth factors and promotes tissue repair, extensively studied for neurological injury recovery.

Role

Turning on the body's regeneration switch

Ongoing research (NAD+ metabolites in neuroprotection emerging 2010s-2020s)

NAD+ Precursors with Peptide Delivery

The Energy Restoration System

NAD+ (nicotinamide adenine dinucleotide) delivered via peptide conjugates or in synergy with peptide protocols to restore mitochondrial function and neural energy.

Role

Restoring the power grid after damage

Learn more

The Strategy

How They Work Together
Together

PeptidePrimary RoleAnalogy
Semax

The Neuroprotective Enhancer

Activating the brain's natural repair systems

BPC-157

The Structural Rebuilder

Construction crew rebuilding damaged neural architecture

Cerebrolysin

The Clinical-Grade Neuroprotector

A cocktail of natural brain-healing compounds

Thymosin Beta-4

The Regeneration Catalyst

Turning on the body's regeneration switch

NAD+ Precursors with Peptide Delivery

The Energy Restoration System

Restoring the power grid after damage

5 Angles of Attack

Neuroprotection & Growth

Semax and BPC-157 activate the brain's natural protective and regenerative systems

Cellular Repair

Cerebrolysin provides multi-targeted neuroprotection with strong clinical evidence

Growth Factor Cascade

TB-500 amplifies growth factors that rebuild neural tissue

Energy Infrastructure

NAD+ precursors restore mitochondrial function and give neurons fuel to heal

Important Considerations

Reality Check
What to Keep in Mind

Timing Matters Enormously

Peptide therapy is most effective when started early - ideally within hours or days of injury. Starting months or years later is still beneficial but less dramatic.

Individual Variation is Huge

Recovery depends on injury severity, location, age, genetics, and other factors. Some people recover fully; some have lasting deficits. Peptides improve odds but don't guarantee specific outcomes.

Work with Specialists

TBI recovery requires coordination with neurologists, neuropsychologists, and rehabilitation specialists. Peptide therapy works best as part of comprehensive care, not as a solo intervention.

Neuroplasticity Takes Time

Rebuilding neural networks takes months to years. Patience and consistent support are essential. This isn't a quick fix - it's rebuilding your brain.

This information is for educational purposes only and should not be considered medical advice. Always consult with a qualified healthcare provider before starting any new treatment.

Realistic Expectations

What to Expect: A Realistic Timeline

An honest breakdown based on research and clinical reports.

What's Happening Inside

If started immediately after injury, peptides are reducing the secondary injury cascade - neuroinflammation, excitotoxicity, and oxidative stress. Cerebrolysin and Semax work quickly; protective mechanisms are ramping up.

What You Might Notice

  • If severe acute symptoms exist, they may plateau or slightly reduce
  • Some slight improvement in alertness or baseline function
  • Generally still in the acute injury state with significant symptoms
  • Sleep may be disrupted - common after TBI

Watch For

This is still the acute phase. Seizure risk is highest in first few weeks. Severe symptoms persist. This is not the time to overdo activity.

Realistic Expectations

You're preventing further damage and initiating healing mechanisms. Don't expect major improvements yet - the focus is halting the cascade.

Administration Guide

Dosing Protocols & Timing

General guidelines based on research literature and clinical reports. Work with a healthcare provider experienced in peptide therapy to customize for your situation.

Important: These are general guidelines. Don't self-prescribe based on internet articles. Work with a qualified healthcare provider.

Semax

250-500 mcg per day

Common Protocols

  • Acute/Early intervention: 500 mcg daily for first 4-8 weeks post-injury
  • Subacute (weeks to months post-injury): 250-500 mcg daily
  • Chronic TBI: 250 mcg daily or cycling 3 months on, 1 month off

Timing Considerations

  • Morning administration preferred - aligns with natural ACTH rhythm
  • Intranasal spray is common delivery method (250-500 mcg per nostril)
  • Subcutaneous injection is also available (1-2 mg weekly)
  • Take on empty stomach for intranasal administration

Cycling

Often used in intensive protocols early after injury (continuous for 4-8 weeks), then reassessment. Some practitioners use 3 months on, 1 month off for chronic TBI recovery.

Primarily intranasal or subcutaneous administration. Penetrates blood-brain barrier efficiently.

Beyond Peptides

Lifestyle Strategies for Living Well

Peptides work best as part of a comprehensive approach. Click each category to explore evidence-based strategies.

At a Glance

Quick Reference Card

Peptide Overview

PeptideWhat It DoesTypical DoseTiming
Semax
The Neuroprotective Enhancer250-500 mcg per dayMorning administration preferred - aligns with natural ACTH rhythm
BPC-157
The Structural Rebuilder250-500 mcg per doseCan be taken at any time, though morning dosing is often preferred
Cerebrolysin
The Clinical-Grade Neuroprotector5-30 mL daily (depending on concentration)Usually given as daily injections during treatment phases
Thymosin Beta-4
The Regeneration Catalyst2-5 mg per weekConsistency matters more than specific time of day
NAD+ Precursors with Peptide Delivery
The Energy Restoration System250-1000 mg daily (NAD+ precursors like NMN or NR)Oral precursors (NMN, NR) typically taken twice daily with food

Early Wins to Watch

  • Headache reduction
  • Sleep quality improvement
  • Subtle cognitive clarity windows
  • Emotional stability returning

Support Stack

Omega-3 fish oilAlpha-lipoic acidNACB Complex vitaminsMagnesium glycinateCoQ10Zinc

Lifestyle Priorities

  • Sleep consistency and duration
  • Paced cognitive rest then gradual reactivation
  • Gentle physical activity progression
  • Anti-inflammatory nutrition
  • Stress management and emotional support
  • Avoiding repeated head impacts

Traumatic brain injury is one of the most serious health challenges you can face. The neurological damage is real, recovery is slow, and setbacks happen. But the brain is remarkably capable of healing when given the right support. These peptides represent evidence-based interventions that can accelerate recovery, reduce long-term deficits, and support your brain's incredible neuroplastic capacity to rebuild itself. Working with a comprehensive care team and maintaining consistency with peptide therapy, lifestyle modifications, and rehabilitation is how you maximize your chances of meaningful recovery.

Recovery is a marathon, not a sprint. Keep going. Your brain is capable of more healing than you might believe possible.