How it works
TB-500 is a lab-made piece of a natural protein called thymosin beta-4. Thymosin beta-4 helps cells move to areas that need repair. Human studies are limited.
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Longevity
TB-500
from $116/ month
Billed on day 1, renews every 10 weeks until you cancel
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An injectable peptide studied for faster recovery from strain and injury.
- Self-administered
- Ships in 3–5 days
- Clinician-prescribed
New to peptides? Start here
So, what is TB-500?
It's a synthetic peptide based on thymosin beta-4, a protein your cells use to move and rebuild, studied in animal and laboratory models for tissue repair.
Goals of treatment
TB-500 is used to support recovery from injury and training. It's often paired with BPC-157. TB-500 is an investigational peptide. It isn't FDA-approved for any use. Most of the research is in animals or small studies, so human data is limited.
How to use it
You give yourself a small shot under the skin once a day at home. Treatment is done in cycles of 8 weeks on, then 2 weeks off. Your provider sets your plan and shows you how to inject.
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Dosing & details
The essentials.
Your clinician personalizes everything below to your health profile and goals.
- Treatment
- TB-500
- Category
- Longevity & wellness
- Administration
- Injection under the skin
- Eligibility
- Clinician-reviewed from your online screening
- Storage
- Follow the pharmacy label
- Included
- Syringes and alcohol swabs included, plus clinician oversight and real human support
Safety first, always
TB-500 is prescribed by US-licensed clinicians and prepared by LegitScript-certified pharmacies. As with any medication there can be side effects. Your Belle care team reviews your history before prescribing and stays available to monitor and support you throughout. This page is informational and not a substitute for professional medical advice.
How it works in your body
TB-500 is a lab-made piece of a natural protein called thymosin beta-4. Thymosin beta-4 helps cells move to areas that need repair. Human studies are limited.
When to expect results
The human data on TB-500 is early, so there's no established timeline for results. Most of what's known comes from laboratory and animal research on tissue repair, and your clinician will talk through what a realistic trial looks like for you. Timelines and outcomes vary by individual.
Is this right for you?
Good candidates
Who may benefit
- Adults recovering from injury, strain, or hard training
- People curious about tissue repair support who want clinician oversight
- Anyone who has considered research-use-only TB-500 and wants a prescription path instead
- Patients already on a Belle treatment who want everything reviewed together by one clinician
Important exclusions
Who should not use this
- Pregnant, breastfeeding, or trying to conceive
- Active cancer or current cancer treatment
- Active liver disease or severe kidney disease
- Allergy to peptide medicines
- Under 18
- A family history of colon cancer
- Athletes tested for banned substances
- Anyone whose health history or current medications make it inappropriate, as determined by a licensed clinician
Side effects to know
Your provider reviews your full history before prescribing.
Common · usually mild & temporary
- Mild redness, tenderness, or bruising at the injection site
- Temporary tiredness, flushing, or headache when starting treatment
Serious · rare but important
- Signs of an allergic reaction such as rash, swelling, or trouble breathing: seek medical care right away
- Long-term safety in people isn't established: report anything unusual to your provider
Discuss all concerns with your provider before starting.
Aging on your terms.
TB-500 is a synthetic peptide based on the active region of thymosin beta-4, a protein found in nearly every cell, studied in laboratory and animal models for tissue repair. Provider-guided, with transparent pricing and home delivery through Belle.
Not for everyone. Your provider reviews your health history before prescribing. This medication is compounded. Compounded medications aren't FDA-approved. The FDA doesn't review them for safety, effectiveness, or quality. TB-500 is on banned lists for many sports.
TB-500 isn't FDA approved. Well-controlled human studies are limited, and its long-term safety in people isn't established. Its regulatory status is evolving, and availability may change.
TB-500 is available by prescription only and is dispensed when a licensed clinician determines it's clinically appropriate. Not everyone is a candidate. Share your full medical history, all medications, and any pregnancy or breastfeeding status with your Belle clinician so they can advise you safely.
This information is for general educational purposes and isn't medical advice. We describe why people explore TB-500 and what research has looked at; we're not claiming it treats, cures, or prevents any condition. Individual results vary. If you experience a serious reaction, seek medical care right away.
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