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TB-500
TB-500
TB-500
TB-500
TB-500
TB-500
TB-500
TB-500

TB-500

Regular price£41.00
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Dual Fragment — two active fragments 99.4% purity, verified every batch COA published

The compound that tells your body’s repair cells where to go.

TB-500 Dual Fragment · systemic cellular signalling

COA published
🔬
Third-party tested
99.4% purity
🛡
90-day guarantee
  Support tissue quality and flexibility   Support systemic recovery between sessions
  Support the body’s coordinated cellular response   Support mobility for an active life

Where BPC-157 works locally, TB-500 works across the whole system. It coordinates the body’s systemic cellular response — directing cellular activity throughout the body toward the tissue quality and flexibility an active life demands.

Delivered as a Dual Fragment — two active fragments, not a single truncated chain — so you get the complete signalling profile the research references.

Built for the person who demands more from their biology — and from their supplier.

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🛡  90-day money-back guarantee

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

TB-500 is built around two specific active fragments of Thymosin Beta-4 — a naturally occurring signalling protein studied across decades of published research. Ac-SDKP is studied for its interaction with the body's natural anti-inflammatory response and healthy tissue architecture maintenance. Ac-LKKTETQ is studied for its support of the body's natural cellular coordination response and cellular mobility. Together the dual fragment formula offers more comprehensive biological pathway coverage than a single fragment approach. Delivered in an enteric-coated capsule — passing through stomach acid intact and dissolving in the small intestine where absorption occurs. Verified at 99.4% purity.

Serving Size: 2 capsules per day

How To Take:
Take 2 capsules daily at a consistent time each day. TB-500 has no food dependency and may be taken with or without food — whichever fits your daily routine best. Swallow with a full glass of water. Take at the same time each day throughout your protocol cycle for best results.

Why enteric-coated?
ARK's TB-500 capsules are enteric-coated — specifically designed to pass through the stomach intact and dissolve in the small intestine where absorption conditions are more favourable. This supports more consistent delivery of both active fragments — Ac-SDKP and Ac-LKKTETQ — at the full stated dose.

Cycle: 10 weeks on — 4 weeks off before repeating.

Do not exceed 2 capsules per day.

Storage: Store in a cool dry place below 25°C away from direct sunlight. Keep out of reach of children.

shipped from the USA Facility normally 3 day shipping

What our customers say

Real reviews from real people

Sarah M.
I bought this product about three months ago for my husband, who is a contractor and often complains about aches and pains after a long day on the job. To be honest, I was skeptical at first, but I could tell right away that it made a difference in how he felt. He’s been using it consistently, and I’ve heard a lot less whining lately, which is a nice change! What I really appreciate is that he says it helps him relax after a tough day. He’s even started recommending it to his coworkers, saying it’s become a game changer for him. Overall, I’m really glad I found this, and I think it’s worth a shot if you're dealing with similar issues!
Sarah M.
Sarah M.
Rob R
I recently tried BPC 157, and I've noticed some positive changes in my recovery after workouts. It's been easier to manage my usual aches and pains, and I feel like I'm bouncing back faster. Overall, I'm pleased with the results so far.
Rob R
Rob R
T Williams
I've been using the BPC 157 and TB 500 stack for a few months now, and I have to say, I've noticed some positive changes in my recovery time after workouts. My soreness seems to fade faster, and I've been able to push myself a bit harder without feeling burnt out. Overall, I feel like this combination has helped support my fitness goals effectively.
T Williams
T Williams
I recently tried BPC 157 for the first time, and I have to say, I'm impressed. The product arrived much faster than I expected, which made my experience even better. It’s nice to see a company that values quick shipping—especially when you're eager to start a new supplement. After using BPC 157, I’ve noticed some positive changes in my recovery time, which is exactly what I was hoping for. I appreciate how straightforward the process was from ordering to receiving my package. Overall, I’m really pleased with my experience and would recommend giving it a try if you're looking for something to aid your recovery.
Antonio L

"See What TB-500 Does Inside Your Body"

TB-500 in Action

"Why Recovery Gets Harder — And Tissue Gets Stiffer — Even When You Are Doing Everything Right"

"The joints that used to feel supple. The recovery that used to be faster. The physical resilience that required less maintenance. These change for a specific biological reason — and that reason is addressable."





"The Tissue Stiffness Building Quietly In Your Joints Right Now — And What TB-500 Does About It"

"Every area of tissue stress your body has ever experienced triggered a collagen response. When you are young that collagen is remodelled back into organised, functional tissue. With age that remodelling becomes less complete. The result is a slow accumulation of tissue changes that affect flexibility, range of motion, and physical resilience. TB-500's Ac-SDKP fragment is studied specifically to support the body's natural tissue architecture maintenance process."

Your Body Already Has The Repair Cells. TB-500 Makes Sure They Get Where They Are Needed."

Your body produces the cells that biological maintenance depends on continuously — stem cells, progenitor cells, immune mediators. The question is whether they reach the areas that need them in sufficient numbers and at sufficient speed.

the entire body simultaneously.This is why TB-500's documented biological activity is systemic rather than localised — and why it covers the biological ground that BPC-157, operating locally, does not.Research basis: Malinda KM, et al. FASEB Journal, 1999.

A heart that stays efficient across decades is not guaranteed. TB-500 is the only research compound with cardiovascular tissue support findings published twice in Nature — the highest-impact journal in science. For the longevity-focused individual this is one of the most significant research signals in the available literature.

Your Body Already Has The Repair Cells. TB-500 Makes Sure They Get Where They Are Needed.

Your body produces the cells that biological maintenance depends on continuously — stem cells, progenitor cells, immune mediators. The question is whether they reach the areas that need them in sufficient numbers and at sufficient speed.

TB-500 is studied for its interaction with G-actin sequestration — the mechanism that enables cells to rapidly reorganise their internal structure and move directionally toward areas of biological activity. More cells arriving where they are needed. Faster. More consistently. Throughout the entire body simultaneously.

This is why TB-500's documented biological activity is systemic rather than localised — and why it covers the biological ground that BPC-157, operating locally, does not.

Research basis: Malinda KM, et al. FASEB Journal, 1999.

The Tissue Stiffness That Builds Gradually — Ac-SDKP Addresses It At The Source.

When the body responds to tissue stress it lays down collagen as a temporary support structure. In young tissue that scaffolding is remodelled into organised, functional tissue. With age that remodelling process becomes progressively less complete — and the temporary scaffolding accumulates as excess fibrous tissue.

The result is tissue that moves with less freedom. Joints that feel less supple. A physical resilience that requires more maintenance to sustain than it used to.

Ac-SDKP — the tissue architecture fragment in TB-500's dual formula — is studied for its interaction with myosin light chain kinase. This interaction supports the body's natural processes associated with healthy tissue architecture maintenance and tissue elasticity over time. Published research documents Ac-SDKP's specific interaction with myofibroblast differentiation — the cellular process most directly associated with excess fibrous tissue accumulation.

Support the tissue. Keep moving.

Research basis: Sosne G, et al. Investigative Ophthalmology & Visual Science, 2010.

Cardiovascular Tissue Support — Two Nature Publications.

Two independent studies published in Nature — in 2004 and 2007 — documented Thymosin Beta-4's interaction with cardiovascular tissue. The findings include its interaction with cardiac progenitor cells, cardiovascular tissue remodelling, and the body's natural vascular support processes.

For the longevity-focused individual building a protocol around long-term cardiovascular health — not just physical performance — the TB-500 cardiac research represents one of the most extensively published areas of its research profile.

These are preclinical findings. Human clinical data is limited. But the quality of the journals in which this research is published — and the consistency of findings across independent research groups — makes it one of the most compelling research signals in the supplement space.

For a heart that stays efficient across decades. Not just a body that performs now.

Research basis: Smart N, et al. Nature, 2007. Bock-Marquette I, et al. Nature, 2004.

Cognitive Resilience Is Part Of The Longevity Protocol Too. TB-500's Neurological Research Is Why."

TB-500's neurological research — while less extensive than its musculoskeletal and cardiac literature — documents consistent neuroprotective effects across multiple independent published studies.

Its interaction with the body's natural anti-inflammatory response supports the environment that neural tissue needs to function effectively over time. Its cellular coordination mechanism supports the directional movement of neural progenitor cells. Its tissue architecture support reduces the fibrous accumulation that can affect neural function.

For the biohacker whose protocol includes cognitive performance alongside physical longevity — TB-500's neurological research profile adds a meaningful and documented dimension to the mechanistic argument for its inclusion.

Research basis: Xiong Y, et al. Neurobiology of Disease, 2011.

BPC-157 Creates The Local Conditions. TB-500 Sends The Cellular Workforce. Together They Cover Everything."

BPC-157 is studied for its support of local vascularisation and cellular activity at specific areas of tissue stress — supporting the body's natural blood vessel formation process, connective tissue cellular activity, and gut lining integrity.

TB-500 is studied for its support of the body's systemic cellular coordination response — promoting cellular mobility throughout the body and maintaining healthy tissue architecture through its interaction with the body's natural biological maintenance processes.

BPC-157 creates the conditions. TB-500 coordinates the response. One works locally. The other works throughout the entire body. Together they offer broader biological coverage than either provides individually — which is why the combined protocol is the most consistently referenced approach in the longevity research community.

If you are running TB-500 alone — BPC-157 is the logical next step. If you are running BPC-157 alone — TB-500 is what your protocol is missing.

[Shop The ARK Protocol Stack — Both Products Together]

Research basis: Gwyer D, et al. Cell and Tissue Research, 2019. Malinda KM, et al. FASEB Journal, 1999.

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