Engineered tissue: what you can actually buy

The short answer: living human tissue is a shipped, mailable commercial product — and for epithelial, spheroidal or barrier tissue it has been for two decades. Skin, airway, gut, liver and cornea models arrive alive at your bench on a production schedule. Contractile, mechanically anchored tissue is a thinner market: one supplier (myriamed) ships finished muscle at a published price, and everyone else sells you an empty plastic mould to build it in yourself. Nobody in either group publishes a force acceptance criterion.

That single split explains almost everything about how this market behaves, including why the prices are not published and why the lead times sound strange.

The availability map

Cluster one: epithelial tissue is a solved logistics problem

This is the part of the market that works. It has worked for two decades, inside toxicology, on a published production cadence.

One established supplier ships living, metabolically active human 3D tissue on a fixed weekly cadence: produced in lots, shipped at 4°C on medium-supplemented agarose gels, dispatched every Monday, delivered Tuesday morning by priority courier in the US and Tuesday to Thursday internationally, with a shelf life of up to four days at 4°C including transit. A standard kit is 24 tissues. Formats are 9 mm and 22 mm individual inserts plus 96-well high-throughput plates on a 0.4 µm pore substrate. Histology is 8 to 12 cell layers plus stratum corneum.

Another supplier publishes production schedules for ready-to-use microtissues. A third ships perfused, ready-to-use tissues prepared by their own staff at 40 or 64 tissue models per plate, explicitly sold as requiring no cell or extracellular matrix handling by the customer.

The lesson for anyone who thinks shipping living tissue to a stranger is science fiction: it is a twenty-year-old commercial product category with an established cold chain. The hard part is solved. It has just never been pointed at custom geometry.

What you cannot change. Tissue geometry. These vendors will vary the media and the tissue composition — phenol-red-free, antibiotic-free, anti-fungal-free and hydrocortisone-free variants are produced with the agent removed at least three days before shipment — but the insert diameter and the plate format are fixed. If your experiment needs a different shape, this cluster has nothing for you.

Why there is no price. Because the product is a production slot. What you can buy depends on what is being grown that week, and the vendors quote rather than list. Distributor listings for these products commonly show “Inquiry” rather than a number.

If skin models are what you need, the RhE comparison covers barrier function, ET-50 acceptance ranges, OECD validation status and the practical differences between the validated models.

Cluster two: contractile tissue is mostly sold as an empty mould

Here the market inverts almost completely.

Two suppliers dominate 3D skeletal muscle culture hardware, and neither sells muscle. One sells a 24-well tissue casting plate kit with a stimulation lid, matched media, myoblasts and iPSC lines, marketed with a claimed greater-than-95-percent tissue formation success rate — every SKU is “request a quote”. The other sells a PDMS microfabricated device with two micropillars per chamber acting as tissue anchors, 21.25 mm diameter, fitting a 12-well plate, at $440.00 for four devices supporting eight experiments, with a 96-experiment microplate version available by quote.

Their own product descriptions are unambiguous about what you are buying. Myogenic progenitor cells from primary, iPSC or immortalised sources are resuspended in an ECM-derived hydrogel mixture and seeded into each culture chamber — by the customer. The tissue compacts and self-assembles around the two posts into an aligned, anchored construct. That is a mould, media and a protocol. The biology is your problem.

There is one exception, and it is recent. myriamed, a Göttingen spin-out, sells finished myrTissue-Skeletal and myrTissue-Cardio off a public storefront at €1,400 for one tissue, €5,400 for five and €8,000 for twelve — ambient shipping, certificate of analysis per batch, ready after 24 hours’ recovery, 7–11 weeks manufacturing. An earlier version of this page said nobody sold finished contractile muscle. That was wrong.

What remains the clearest gap in the market is narrower and still real. Across roughly thirty organisations surveyed, not one publishes a force acceptance criterion for a contractile muscle component. You can buy the tissue; you cannot order it against the twitch or tetanic force number an engineering specification is written in. The full account — who will quote it as a custom programme, what the published force numbers actually are, and what it costs to do it yourself — is in engineered skeletal muscle tissue, and the cardiac equivalent is in engineered heart tissue.

Cluster three: organ-chips, which are a third thing entirely

Organ-chip platforms sit between the two clusters and are best understood as instrument businesses.

You buy a culture module or instrument, then buy consumable chips or plates, then either seed them yourself or pay the vendor to prepare them. Four or more vendors operate this model with different tissue coverage — liver, lung, gut, kidney, vascular, blood–brain barrier — and different degrees of openness. Some sell only the empty chip and the instrument. At least one sells the plate arriving with perfused tissues already established. At least two run a services arm that will execute the study rather than sell you the hardware.

The practical procurement question with this cluster is not tissue type. It is lock-in: whether the consumable is proprietary to the instrument, what a well costs across the study you actually plan to run, and whether you can bring your own cells. Ask those three before comparing platforms on biology.

What “lead time” means in each cluster

• Epithelial living tissue. Time to the next production slot, plus transit. Ordering on Tuesday does not gain you a week against a Monday dispatch. Then a four-day usable window on arrival, which means your experiment schedule is fixed by the supplier’s calendar before you start.
• Casting devices. Ordinary consumable lead time, one to four weeks, plus however long it takes you to expand cells and learn to cast. The device arrives fast; the tissue does not.
• Custom programmes. Published phase durations from one established provider give the honest envelope: directed differentiation four to eight weeks, a 3D phenotyping study three to five weeks, CRISPR line editing eight to sixteen weeks, screening four to twelve weeks. Add cell expansion and QC on top.

Why so little is priced publicly

Three structural reasons, none of them secrecy:

1. Living tissue is made to a calendar, not held in inventory. Price depends on run size and slot availability.
2. Custom tissue has non-recurring engineering. Tooling and protocol development dominate the first article and disappear on repeats, so a single number would be misleading in both directions.
3. Most of these vendors sell to a small number of large buyers who negotiate, which removes the commercial incentive to publish a list.

The one genuinely public number in the contractile category — $440 for four muscle casting devices — is worth holding onto, because it sets the do-it-yourself ceiling that any quote for finished muscle has to be justified against.

The honest verdict by tissue type

Buy off the shelf without hesitation: reconstructed epidermis, full-thickness skin, airway, oral, gingival, corneal, oesophageal and vaginal epithelium, intestinal epithelium, liver microtissues. The supply is mature, the cold chain works, and the models are in regulatory guidelines.

Buy the platform, expect to do the work: organ-chips and cardiac microtissue systems. Real capability, real lock-in, and the consumable cost per data point matters more than the instrument price.

Buy the mould and budget the biology, or buy the tissue: 3D skeletal muscle. The device is cheap and available at $440 for eight experiments. One supplier will also sell you the finished tissue at €1,400. If you cast your own, the cells, media, stimulation, casting skill and force measurement are all separate purchases.

Do not expect to buy at all: force-specified contractile components, delivered active neural cultures, custom geometry of any kind, vascularised thick tissue. These are integration projects. Some are quotable as programmes and some are not yet quotable by anyone.

Where to go next

The tissue categories in depth:

• Airway and respiratory tissue models — the longest culture windows in the market, published TEER release criteria, and the donor disease panel.
• Intestinal and gut models — regional identity, the planar versus organoid geometry decision, and the published Caco-2 comparison.
• Corneal and ocular tissue models — four guideline-validated models, each with a different pass mark.
• Oral, gingival and mucosal models — the epithelia outside the guideline system, and how to specify without an acceptance criterion.

The cross-cutting decisions:

• Organoids versus engineered tissue — a geometry decision that determines which assays are possible at all.
• Production calendars and shelf life — why living tissue is bought by date, and the post-shipment QC gap.
• Vascularised thick tissue — the diffusion limit, and the one thing in this market nobody sells.

Elsewhere on the site:

• Engineered skeletal muscle tissue — the headline gap, with the real published force numbers and who will quote it.
• RhE models compared — barrier function, ET-50, OECD validation status and practical differences.
• Human skeletal myoblasts — the cell input for anything contractile.
• Sourcing hub — the full category matrix including cells and devices.

If your tissue specification does not appear on this map, send it to us. We will tell you which of the three clusters it falls into, and if it falls into none of them we will say so rather than quote you something adjacent.