Two compounds.
Decades of science.
One standard.
Every ARK formulation is built around a single question — what does the published research actually support? The answer determines everything: the compound, the form, the dose, the capsule.
Two formulations.
Built with the same rigour as each other and nothing less.
ARK currently offers two core longevity formulations. Not forty. Not a catalogue built for the appearance of comprehensiveness. Two compounds selected because they represent the strongest intersection of research depth, safety profile, oral bioavailability evidence, and practical applicability for the longevity-focused individual.
These two compounds are the foundation. As the science evolves and new compounds meet our evidential and manufacturing standards, the ARK range will grow. Slowly. Deliberately. Without compromise.
BPC-157 Capsules
A 15-amino-acid signalling molecule derived from a gastroprotective protein found naturally in the human digestive system. Studied across more than three decades of published research for its ability to accelerate tissue repair, support gut integrity, protect neural pathways, and drive new blood vessel formation in damaged tissue. Delivered as BPC-157 Arginate — the stable salt form — in precisely dosed oral capsules verified at 99%+ purity.
The mechanisms behind BPC-157.
TB-500 Capsules
A synthetic analogue of Thymosin Beta-4 — a naturally occurring signalling protein present in virtually every cell in the human body. TB-500 governs how cells respond to injury, coordinating systemic cellular migration toward sites of damage. One of the few research compounds with well-documented anti-fibrotic properties — reducing scar tissue accumulation that progressively degrades tissue quality and function with age. Verified at 99%+ purity. Precisely dosed for consistent oral protocol use.
The mechanisms behind TB-500.
We are transparent about this because you deserve clarity.
BPC-157 and TB-500 are not approved by any regulatory authority — including the EMA, FDA, or MHRA — for human therapeutic use. They are sold as research compounds. This is the honest and accurate description of their current regulatory status and we will not pretend otherwise.
The preclinical research is compelling. The safety profile across decades of animal model studies is strong. The longevity and biohacker community has made an informed, considered decision to explore these compounds within that context — and that community includes physicians, researchers, and highly educated individuals who are capable of evaluating the evidence and making their own decisions.
ARK supports that decision with the highest quality product we can manufacture, the most accurate information we can provide, and the consistent recommendation that any protocol be discussed with a knowledgeable healthcare practitioner who understands the research landscape.
We do not overstate what the science shows. We do not understate it either. What you read on our product pages reflects our honest assessment of a research literature that is genuinely promising, appropriately cautious, and — in our view — deserving of the serious attention the longevity community is giving it.
The longest-living version of you is built, not waited for.
Biological aging is not a single moment. It is a thousand small failures of maintenance — accumulated tissue damage that was never fully repaired, inflammation that was never fully resolved, cellular repair systems that were never given what they needed to run at the capacity they were designed for.
The people who age best are not the ones who got lucky with genetics. They are the ones who understood early that biology responds to inputs — that what you do, what you take, how you sleep, how you recover, and what signals you give your cells determines the trajectory of your biological function far more than most people realise.
ARK is one input. A precise, verified, research-grounded input — but one input among many. We do not sell miracles. We sell compounds that the scientific literature suggests can meaningfully support the repair and maintenance systems your biology already has.
The rest — the sleep, the training, the nutrition, the stress management, the blood work, the ongoing self-experimentation — is yours. ARK is here for the part we can actually contribute to with integrity.
That has always been enough of a reason to build this.