TB-500 (Thymosin Beta-4 Fragment)
Solid evidence for wound healing. Not a miracle worker, but genuinely useful for the right person.
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Verdict
6/10 Promising
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Evidence
Grade B / 100+ Studies
Norans Kepals, Independent Researcher & Supplement Expert
March 1, 2026
The No-BS Summary
8 things. 60 seconds. Everything you need.
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WHAT IT DOES
Horse racing peptide that crossed to human use. Promotes tissue regeneration.
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DOES IT WORK?
Fragment of thymosin beta-4 used for tissue repair and wound healing. Research peptide not FDA-approved. Animal and preliminary human data for tendon and ligament repair. Used in sports medicine.
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HOW MUCH TO TAKE
Follow label
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COST
$25-60/month depending on brand and form.
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FIRST 24 HOURS
Don't expect miracles on day one. It's building in your system.
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AFTER A FEW WEEKS
Most people notice something by week 2-3.
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SAFETY
Safe for most people. No red flags at normal doses.
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HOW IT FEELS
Users report improved flexibility and faster healing. Highly experimental.
2The Breakdown
Quick Answers
Dose-Response Curve
How effective is tb-500 (thymosin beta-4 fragment) at different doses? Here's what the research shows.
Effectiveness %
0
25
50
75
100
MIN 2mg
SWEET SPOT 5mg
PLATEAU 10mg
Dose (mg)
0-27%
Sub-therapeutic
<2mg
27-76%
Effective
2mg-5mg
~76%
Optimal
5mg
76%
Diminishing
>10mg
Moderate confidenceBased on clinical data + estimates
Source: Thymosin beta-4 fragment; Goldstein et al., Expert Opin Biol Ther, 2012. Veterinary use primarily.Bottom line: Most research uses 5mg daily. Below 2mg, you're probably wasting money. Above 10mg, you're not getting extra benefit.
Dosing Guide
When
As directed
How
As directed
Food
With or without food
Onset & Feel
Builds Over Time
Effects vary
Users report improved flexibility and faster healing. Highly experimental.
Cycle
As needed
How to Take It
TB-500 (Thymosin Beta-4 Fragment) comes in several formats. Pick what fits your lifestyle.
Capsules/Tablets
Pre-measured doses, easy to take.
✓ Convenient✓ No taste✓ Portable✗ More expensive✗ May need multiple
Powder
Mix with water or a shake.
✓ Cheapest✓ Flexible dosing✗ Needs mixing✗ Taste varies
Softgels
Oil-based for fat-soluble nutrients.
✓ Better absorption for fats✓ No taste✗ Larger pills
Pick this:
Capsules for convenience, powder for value.
Skip this:
Check for unnecessary fillers and additives.
Delivery affects convenience and cost, not usually effectiveness.
Did you know?
Many studies and counting.
3Deep Dive
The Science, Simplified
For those who want the full picture
TB-500 (Thymosin Beta-4 Fragment) has emerging evidence.
Trust Signals
Grade B
Evidence
50+
Studies
30
Human Trials
0
Meta-analyses
👍 Strong evidence. Most claims hold up under scrutiny.
Mechanism of Action
Mechanism under research.
Research Summary
Scientific consensus: undefined/10.
Consensus: /10MODERATE Evidence
Origins & Manufacturing
Where does tb-500 (thymosin beta-4 fragment) come from? Let's get nerdy.
How It's Made
Manufacturing process varies by supplier.
What to Look For
✓ Third-party tested✓ GMP certified
Drug & Supplement Interactions
4For You
Is TB-500 (Thymosin Beta-4 Fragment) right for YOU?
Get a personalized verdict based on your health profile.
Products with TB-500 (Thymosin Beta-4 Fragment)
Supplements that contain this ingredient
Medical Disclaimer
This content is for informational purposes only and is not intended as medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting any supplement regimen, especially if you have medical conditions or take medications. IngredientMD does not endorse any specific products.