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Peptide Database

Goals
Fat LossMuscle BuildingInjury HealingAnti-AgingCognitive EnhancementSleep OptimizationImmune SupportGut HealingSkin RejuvenationSexual Health
Peptides
Adipotide
Weight Management
AOD-9604
Weight Management
BPC-157
Healing & Recovery
Cagrilintide
Weight Management
CJC-1295
Growth Hormone
DSIP
Sleep & Recovery
Epithalon
Anti-Aging
GHK-Cu
Anti-Aging
GHRP-2
Growth Hormone
HCG
Hormone Support
Hexarelin
Growth Hormone
HGH
Growth Hormone
IGF-1 LR3
Growth Hormone
Kisspeptin
Hormone Support
Melanotan-2
Cosmetic
MOTS-C
Metabolic
NAD+
Anti-Aging
Oxytocin Acetate
Hormone Support
PEG-MGF
Recovery
PNC-27
Cancer Research
PT-141
Sexual Health
Retatrutide
Weight Management
Selank
Cognitive
Semaglutide
Weight Management
Semax
Cognitive
Sermorelin
Growth Hormone
Snap-8
Cosmetic
SS-31
Mitochondrial
TB-500
Healing & Recovery
Tesamorelin
Growth Hormone
Thymosin Alpha-1
Immune
Tirzepatide
Weight Management
Total Peptides: 32
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Healing & Recovery Protocol

TB-500Complete Dosing & Administration Guide

A powerful fragment of thymosin beta-4 that acts like your body's repair signal—speeding up healing of muscles, tendons, and tissues by promoting cell migration and new blood vessel growth right where you need it most.

Dose Range

2-5mg

Frequency

Twice weekly

Route

Subcutaneous injection

Cycle Length

4-6 weeks

Dosing

How much
do I take?

Starting Dose

2-2.5 mg

Frequency

Twice weekly

Duration

4-6 weeks

Start here to assess your tolerance and response. Many people see good results at this dose. Split your weekly dose into two injections spaced 3-4 days apart (like Monday and Thursday).

Standard Dose

4-5 mg

Frequency

Twice weekly (split into 2-2.5 mg doses)

Duration

4-6 weeks

The most commonly used protocol for moderate injuries. Your total weekly dose is 4-5 mg, split into two injections. This is the sweet spot where most users see significant healing benefits.

Advanced Dose

5-10 mg

Frequency

Twice weekly (2.5-5 mg per injection)

Duration

4-8 weeks

Higher doses for severe or stubborn injuries. Some protocols use a loading phase of higher doses for 1-2 weeks, then drop to maintenance. Work with a provider for doses above 5 mg weekly.

Timing

Best time to take

Morning or evening—timing doesn't significantly affect TB-500's effectiveness. What matters most is consistency. Pick a schedule that works for your lifestyle and stick with it.

With food?

TB-500 can be injected regardless of food timing. It doesn't seem to affect absorption either way, so fit it into whatever routine works for you.

If stacking

TB-500 pairs exceptionally well with BPC-157—they're often called the 'healing stack' because they work through different but complementary mechanisms. Inject at different sites if using both. Space injections at least 15-30 minutes apart to track individual effects.

Adjusting Your Dose

Increase if

  • +You've completed 2+ weeks at starting dose with minimal healing progress
  • +Your injury is more severe than initially assessed
  • +You're recovering from surgery under professional guidance
  • +Your research protocol calls for loading phases

Decrease if

  • -You experience persistent headaches or fatigue beyond the first week
  • -Injection site reactions don't resolve within 48 hours
  • -You feel unusually tired or lethargic after each injection
  • -Any unexpected or uncomfortable side effects arise

Signs of right dose

  • Noticeable improvement in injury flexibility or reduced stiffness
  • Decreased pain at the injury site over 2-4 weeks
  • Improved range of motion in affected areas
  • Better exercise tolerance without aggravating the injury

Dosing Calculator

Calculate Your Exact Dose

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Step 1: Peptide Weight

Find the weight printed on your peptide vial label

Look here!

The weight is on the label

Peptide vial
5mg

Select Weight

mg

Look for a number followed by 'mg' on the vial label (e.g., 5mg, 10mg)

Administration

How do I
use it?

Reconstitution

What you need

  • Bacteriostatic water (BAC water)—the preservative keeps it safe for multiple uses
  • Insulin syringes (29-31 gauge)—thin needles mean less discomfort
  • Alcohol swabs for cleaning vial tops and injection sites
  • Your TB-500 powder vial

Example

If you have a 5mg vial and add 2mL of BAC water, you get a concentration of 2.5mg/mL. So every 1mL (100 units on an insulin syringe) equals 2.5mg of TB-500.

For a 2.5mg dose at 2.5mg/mL concentration: draw 1mL (100 units on a standard insulin syringe). For a 5mg dose: draw the full 2mL or use a larger vial reconstituted accordingly.

Injection

Route

Subcutaneous injection (just under the skin)—the easiest and most common method. Some users prefer injecting near the injury site, though systemic administration works well too.

Best sites

  • Belly fat area (about 2 inches away from your belly button)
  • Front or outer thigh (middle section)
  • Near the injury site (within a few inches, not directly into it)
  • Back of the upper arm (have someone help if needed)

Technique

  • 1.Wash your hands thoroughly with soap and water
  • 2.Clean the injection site with an alcohol swab and let it air dry completely
  • 3.Pinch about an inch of skin to create a fold
  • 4.Insert the needle at a 45-90 degree angle (45 if you're lean, 90 if you have more tissue)
  • 5.Push the plunger slowly and steadily
  • 6.Wait 5 seconds before removing the needle
  • 7.Apply light pressure if needed—don't rub
Full Injection Guide

Storage

Before reconstitution

Keep your TB-500 powder in the refrigerator (36-46°F / 2-8°C) for short-term storage or in the freezer (-4°F / -20°C) for long-term storage. Store in the original sealed vial away from light. Properly stored powder can remain stable for 2+ years when frozen.

After reconstitution

Once mixed with bacteriostatic water, refrigerate at 36-46°F (2-8°C). Never freeze the reconstituted solution—freezing destroys the peptide. Keep away from light and use within 28 days.

Signs of degradation

  • Cloudy or hazy appearance (should be crystal clear)
  • Visible particles floating or settled at the bottom
  • Color changes—any yellowing or discoloration means toss it
  • Unusual smell—fresh solution should have little to no odor

Sample Daily Schedule

Morning (or consistent time that works for you)

2-2.5 mg injection

Site: Rotate between belly, thigh, and near injury site

Inject twice weekly, spacing doses 3-4 days apart (e.g., Monday and Thursday). A typical loading phase uses 4-5 mg total per week for 4-6 weeks, followed by maintenance of 2-4 mg weekly if continued.

Safety

Is it
safe?

Safety Profile

TB-500 has shown a good safety profile across preclinical studies and limited human research. It's a fragment of thymosin beta-4, a naturally occurring protein in your body involved in healing. Most side effects are mild and transient, primarily injection site reactions. However, large-scale clinical trials are still needed to fully establish its safety profile in humans.

TB-500 has been used extensively in equine medicine and has been the subject of multiple human clinical trials for conditions like dry eye, wound healing, and cardiac repair. Phase 1-2 trials have shown it to be well-tolerated, but Phase 3 data is limited. Always work with a healthcare provider when using research compounds.

Common Side Effects

Experienced by some users

Injection site redness

A little pink or red area where you injected is totally normal. It's just your skin reacting to the needle and solution.

Management: Rotate injection sites between belly, thigh, and arm. A cool compress can help. Usually fades within 24-48 hours.

Mild fatigue or lethargy

Some users feel a bit tired after injections, especially in the first week. Your body is mobilizing healing resources.

Management: Inject in the evening if fatigue bothers you. Stay well-rested and this typically improves after the first week.

Mild headache

Occasional headaches have been reported, usually mild and in the first few days of use.

Management: Stay well-hydrated and rest if needed. These typically resolve within the first week as your body adjusts.

Slight flushing

Some users notice mild warmth or flushing at the injection site or generally, usually brief.

Management: This typically passes within 30 minutes. Not a cause for concern unless it's severe or persistent.

Less Common

  • Head rush or lightheadedness
  • Temporary nausea

These typically resolve with continued use or dose adjustment.

Stop and Seek Help If

  • ×Any signs of allergic reaction—stop immediately and seek medical help
  • ×Persistent headaches or fatigue that don't improve after the first week
  • ×Significant injection site reactions that spread or don't heal
  • ×Any side effect that feels serious or really concerns you
  • ×Your injury has healed satisfactorily
  • ×Your research protocol/cycle is complete

TB-500 is a research compound, not an FDA-approved medication. Never start, stop, or change your dosing without guidance from a qualified healthcare provider. This information is for educational purposes only—not medical advice.

Interactions

With other peptides

  • Excellent pairing—the classic 'healing stack.' BPC-157 works through different pathways and together they provide comprehensive tissue repair support. Inject at different sites.
  • Safe to combine for comprehensive tissue repair. GHK-Cu focuses on skin and collagen while TB-500 works on deeper tissue healing.
  • Can be combined for enhanced muscle recovery. Both promote tissue repair through different mechanisms.
  • Safe to stack for overall recovery. Growth hormone releasing peptides complement TB-500's healing effects.

With medications

  • !Blood thinners (warfarin, heparin) - May increase bleeding at injection sites. TB-500 promotes angiogenesis which could theoretically affect clotting. Monitor closely.
  • NSAIDs (ibuprofen, naproxen) - NSAIDs reduce inflammation which is part of the healing process TB-500 supports. May reduce effectiveness—use sparingly.
  • Corticosteroids - Steroids can impair healing. If you're on long-term steroids, discuss with your doctor.
  • Diabetes medications - TB-500 supports wound healing in diabetics but monitor blood sugar as healing processes can affect glucose.

With supplements

  • Collagen peptides - Complementary—collagen provides building blocks while TB-500 promotes the repair process.
  • Omega-3 fatty acids - Safe and potentially beneficial. Omega-3s support anti-inflammatory pathways that complement healing.
  • Vitamin C - Supports collagen synthesis and healing. Good addition to a recovery protocol.
  • Turmeric/Curcumin - Anti-inflammatory but work differently than NSAIDs. Generally considered safe to combine.

Want the Full Picture?

View the complete TB-500 research profile including mechanism of action, clinical studies, effectiveness timeline, and FAQ.

View Full TB-500 Profile

Medical Disclaimer

TB-500 is an investigational research compound not approved by the FDA for human therapeutic use. This information is for educational purposes only and should not be construed as medical advice. Always consult with a qualified healthcare provider before starting any new supplement or treatment protocol.

Last updated: 2/8/2026

TB-500 Protocol — Complete Dosing & Administration Guide | Peptide Initiative