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The box
TB-500
Injector pen20 mg
From $32 per week as a VIP member
What users report
More flexibility
Faster repair
An action across the whole body
Studied up to phase 3
Less stiffness after exercise and suppler tissue, according to users, with the active fragment of a repair protein found throughout the body.
More flexibility
In the lab, its parent protein limits fibrosis, the stiff scar tissue that locks an area after an injury.
Reported over the weeks by users.
Faster repair
In a lab wound model, thymosin beta-4 increased skin closure by 42% on day 4 and by 61% on day 7.
An action across the whole body
It binds actin, which lets repair cells reach an injury, wherever it is.
Studied up to phase 3
Its parent protein was tested in a human phase 3 trial for corneal repair (SEER-1, 2023).
Laboratory research
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People choose it for tissue flexibility and recovery, with less stiffness after exercise, according to users.
What it is: The active fragment of thymosin beta-4, a protein that binds actin and lets repair cells reach an injury, with an action that reaches the whole body.
Laboratory research
Up to 61% more closure of a skin wound in 7 days, and already 42% on day 4: that is the result of thymosin beta-4 in a wound model.
TB-500 reproduces its active site, the one that binds actin, the fibre that lets cells move.
Why people choose it:
- Healing: its parent protein reached phase 3 in humans; the cornea fully closed within 4 weeks in 6 patients out of 10, against 1 out of 8 without it (2023).
- Recovery: it helps blood vessel cells, skin cells and stem cells reach an injury.
- Flexibility: thymosin beta-4 curbs NF-kB and limits fibrosis, stiff scar tissue.
- Muscles and tendons: users report more flexibility and less stiffness after exercise.
Its action reaches the whole body: the injection site matters little.
Level of evidence, possible effects and contraindications: see the full TB-500 profile.
Prohibited in and out of competition by the World Anti-Doping Agency (section S2.3).
30-day trial, no card: the member price from today, no commitment. Start my free trial
$197.00 without a subscription
+ $20.00 shipping, free from 2 items
Format
This size covers between 4 and 5 weeks depending on the dose · 33% of a full cycle · $32 per week as a VIP member, at the minimum dose.
1 to 2 business days in Quebec and Ontario
In stock
Add 1 item and shipping is free (from 2 items).
Recommended supplies
- Embouts d'aiguille, paquet de 50A fresh needle tip for every injection$16.00
- Tampons d'alcool, boîte de 25To disinfect before injecting$6.00
- Combo embouts et tamponsNeedle tips and swabs together$20.00
What to combine it with?
Pick one to three products: the text follows your combination.
Local and diffuse, à la carte
What each one brings
- BPC-157 : It acts mainly near the injury, on blood vessels and on the cells that make collagen.
- TB-500 : It acts diffusely: it helps repair cells reach the tissues, throughout the body.
Why together
The most cited repair pair: BPC-157 acts locally, TB-500 throughout the body, and they complement each other instead of overlapping. Peptiva also combines them in a single pen, Healing Blend; with two pens, each keeps its own rhythm.
What adds up
- The injury and the whole body covered at the same time.
- A first improvement as early as week 1 or 2 according to BPC-157 users, and less stiffness after exercise according to TB-500 users.
In practice
Two pens, two rhythms: each follows the protocol shown on its own page.
Also available in a single pen: Healing Blend
When will I feel the effects?
Week 1
Getting started
Loading begins, two injections a week. Some fatigue is sometimes described in the first days, then it passes.
Weeks 2 to 4
Mobility settles in
Users report a difference in mobility and recovery between the second and the fourth week of loading.
Weeks 5 to 6
The end of loading
Loading continues until the sixth week: consistency is what keeps the improvement you feel.
Week 7 and up
Maintenance
From the seventh to the twelfth week, one injection a week. Compare with your starting point before deciding what comes next.
These timings vary from one person to the next. This timeline is a guide, not a promise.
More info
Is it for me?
People choose it for tissue flexibility and recovery, with less stiffness after exercise, according to users.
Not for you if:
- Active cancer or a recent history of it: cell migration and blood vessel formation are also what a tumour relies on.
- Pregnancy or breastfeeding.
- An undiagnosed acute injury (suspected tear or fracture).
- Minors.
Cycle length
A cycle lasts up to 12 weeks, then a 4-week break before starting again.
The number of pens for a full cycle, the dose ramp-up and the injection days are in your protocol, sent with your order.
Price per week
- 20 mg$32 per week as a VIP member · $40 without a subscription
At the protocol's minimum dose. Quantity discounts lower this figure further.
How to use
The box
- Ready in one step: the included water syringe is already measured for this pen.
- In the box: the pen, its pre-measured water syringe, 12 needle tips (a new one for each injection) and the alcohol swabs.
- The Peptiva system: powder sealed without air or light, intact down to the last dose. Sealed until you: the box is shrink-wrapped at Peptiva, you are the first person to open it. Pen or vial: the difference
- Shipped from Quebec by Xpresspost, 1 to 2 business days in Quebec and Ontario*, with tracking. Replacement if your package is lost.
- Analyzed by Sidechain, independent laboratory · see the certificate.
- Pen with a defective mechanism: our team assesses it, and replaces it at no charge if the defect is confirmed. See the details.
Shipping
- More items, more value: shipping ($20.00) is on us from 2 items (anywhere in Canada), then 3 items −5%, 4 to 5 items −8%, 6 items or more −10% off your cart, except NAD+, glutathione and the full ramp-up, which already carry their quantity price. Stacks with your member discount. A complete stack counts as 1 more item.
- Read the full educational profile : description and how to use it, in the Centre.
Storage
Good for 5 and a half weeks after reconstitution, if it has been kept properly: in the fridge, away from light, with an alcohol swab on the tip before each use. Past that, we do not recommend using it, even if some is left; if the liquid turns cloudy or changes colour, do not use it, even before.
VIP membership
$39.40 off this item (20% off all year), plus shipping at $10 instead of $20: the membership pays for itself by your 3rd order.
See all 3 benefits
- Member: this protocol becomes a dose schedule in your account, with its days, its reminder time and the tracking of your effects.
- Your training and meal plans: built from your answers, with every exercise shown on video, every meal with its calories and macros, and your grocery list.
- Victor, your VIP butler: he adjusts your dose, your days and your plans; you confirm with one click.
Membership$119· 12 months· free from $649
Chemical identity1 components
- Form
- Acetylated fragment 17-23 of thymosin beta-4 (Ac-LKKTETQ), values for the base form
Salt form: as stated on the lot's certificate of analysis.
Also available as a complete protocol
This peptide is part of:
Certificate of analysis
The Peptiva system
From the box to the first injection, in three steps.
1. Receive
The pen and its water syringe arrive in the same box.
2. Empty the syringe
One gesture, once: the water goes into the pen, the plunger moves back.
3. Set the dial
For each injection, a new needle tip and the dose on the dial, with nothing to measure.
The protocol comes with the product
Dosage, cycle length, storage and injection technique, written for this product. Get it right now, even before you order.
Where to find it: The QR code on your box label · In My account, as soon as the order is paid · In the payment confirmation email
Get the protocol by email
A Peptiva account is required: the full protocol is sent to that account's email as soon as it exists.
Frequently asked questions about this product
What if my package never arrives?+
What is a peptide and how does it work in the body?+
How does the personalized Peptiva plan work?+
* Xpresspost transit time for most areas of Quebec and Ontario, counted from shipping and not from the order. Allow 2 to 4 business days elsewhere in Canada. Shipping details.