What documentation comes with each order?

Every unit ships with a per-lot Certificate of Analysis, including post-thaw viability, and chain of custody documentation. Orders ship overnight in cold chain packaging.

What cryopreservation solution does ATOM use?

A chemically defined, DMSO-free, cGMP-grade cryopreservation solution with no serum, no recombinant proteins and no animal-derived components.

How do I see pricing and full specifications?

Pricing, ordering and full specifications are available to verified ATOM partners. Provider verification has a 24-hour turnaround.

Products Training Insights Contact

Become a Partner Order

(435) 222-2621

Stem Cell Products & Biologics for Licensed Providers

What's in the vial is all that matters.

Stem cells and exosomes. Look inside each one.

Inside · 400×

The flagship · Muse stem cells

ATOM MUSE

SSEC™ stress-selected stem cells.

Only the most resilient stem cells endure the selection. By provider consultation.

70%SSEA-3 positive

95%Post-thaw viability

1 mLDMSO-free

IV infusionSite-specific injection

+ ATOM X exosomes included

Learn more ›Order ›

95%Post-thaw viabilityPer lot

FDARegistered laboratoryFEI 3010691002

cGMPCompliant processingMadison, WI

3rd‑partyRelease testingEvery lot

Compare

Which stem cell product is right for your practice?

See full specs › Pricing unlocks after 24-hour provider verification. Become a partner ›

Flagship

ATOM MUSE

Muse cells · SSEC™

70%SSEA-3 positive

95%Post-thaw viability

IV · InjectionRoutes

IncludedATOM X exosomes

ConsultationTo order

Learn more ›

·

ATOM MSC

Wharton's Jelly MSCs

—Muse marker

95%Post-thaw viability

IV · InjectionOne product, both routes

IncludedATOM X exosomes

DirectTo order

Learn more ›

·

ATOM X

Exosomes (acellular)

No cellsThe signal, without the cell

30–150 nmVesicle size

4 formatsIV · Injection · Microneedling · Topical

StandaloneOr free with stem cells

DirectTo order

Learn more ›

Product details

The full specs.

Stem cell products and exosome biologics, documented lot by lot.

The flagship

ATOM MUSE (SSEC™)

Muse Cells · Stress-Selected Enduring Cells

The most rigorously prepared format in the line. Muse cells (multilineage-differentiating stress-enduring cells) are a rare, naturally occurring subpopulation of mesenchymal stem cells, identified by the SSEA-3 marker. ATOM MUSE is isolated through controlled environmental conditioning: taken through hypoxic, low-temperature selection so only the most resilient fraction endures. 70% SSEA-3 positive. Released at 95% post-thaw viability. Available by provider consultation, for IV or injection. Intended for provider-directed use within applicable law and the provider's scope of practice.

IV InfusionSite-Specific Injection

1 mL70% SSEA-3 Positive95% Post-Thaw ViabilityDMSO-Free Cryopreservation SolutionConsultation Required+ Complimentary ATOM X

Learn more ›Order ›

ATOM MSC

Wharton's Jelly Mesenchymal Stem Cells · IV or Injection

One product, both routes. Wharton's Jelly mesenchymal stem cells from healthy, consenting U.S. umbilical cord donations, which a licensed provider may administer intravenously or by site-specific injection, with no separate SKU to choose between. Released at 95% post-thaw viability and supplied with a per-lot Certificate of Analysis. Intended for provider-directed use within applicable law and the provider's scope of practice.

IV InfusionSite-Specific Injection

1 mL95% Post-Thaw ViabilityDMSO-Free Cryopreservation SolutionPer-Lot COA+ Complimentary ATOM X

Learn more ›Order ›

ATOM X

Exosomes · Acellular Secretome · The Versatile One

A concentrated acellular secretome: the naturally occurring exosomes, signaling molecules and growth factors associated with cord-derived stem cells, isolated and packaged without live cells. The widest range of formats in the line: IV, injection, microneedling and topical. Included free with every stem cell product, and available standalone. Supplied with a per-lot Certificate of Analysis. Intended for provider-directed use within applicable law and the provider's scope of practice.

IVInjectionMicroneedlingTopical

1 mLAcellular PreparationPer-Lot COAAlso Available Standalone

Learn more ›Order ›

Scientifically reviewed by Joe, PhD, Lead Scientist, and Dr. Ajit Dhaliwal, Medical Advisor. Last reviewed October 2026.

+

Included with every stem cell order

Stem cells + exosomes. One price.

Every MSC and MUSE order ships with a vial of ATOM X.

2Products in the box

$0Extra for ATOM X

0Markup

Don't take our word for it

Watch a live stem cell count.

A sterility panel isn't a cell count. Neither is an ID screen. Here's ours, on camera.

Live stem cell count of ATOM MUSE (SSEC)

Recorded count of one ATOM MUSE lot. Every lot you receive is counted and documented on its own COA.

The count

Stem cells per vial. Shown, not asserted.

The viability

95% alive after the thaw.

The paper trail

Third-party verified. Printed on the COA.

Stem cells and exosomes

The cell sends the message.
The exosome carries it.

Stem cell~20 µm · LIVING

Releases

Exosome30–150 nm · ~200× SMALLER

ProteinsGrowth factorsCytokinesmRNAmicroRNALipids

Exosomes vs. stem cells ›

Sourcing to shipment

Six stages. Every one documented.

01

Ethical sourcing

Consenting donors. Healthy U.S. births.

02

Body-like environment

3D, low-oxygen. Not flat plastic.

Core

03

Exosome isolation

Debris out. 30–150 nm kept.

04

DMSO-free

No serum. No animal components.

Core

05

Third-party testing

Viability, sizing, sterility.

Core

06

Cold chain

Overnight. COA in every box.

Built for your practice.

Orthopedic & sports medicine

MSC · MUSE

Aesthetic & functional medicine

MSC · X

Wellness & IV therapy

MSC · X

Regenerative medicine clinics

Full ATOM line

Describes the formats providers commonly select, not a clinical indication or outcome. Appropriate use is determined solely by the licensed provider.

Questions, answered.

Who can purchase ATOM biologics?

ATOM biologics (stem cells and exosomes) are supplied exclusively to licensed healthcare providers for provider-directed use within their scope of practice and applicable law. Licensure is verified before any pricing or commercial information is shared.

What stem cell products does ATOM offer?

Three biologics for licensed providers: ATOM MSC (Wharton's Jelly mesenchymal stem cells), ATOM MUSE (SSEC™ Muse stem cells) and ATOM X (exosomes). Every stem cell product is released at 95% post-thaw viability, ships with a per-lot COA and includes a complimentary vial of ATOM X.

What is the difference between Muse cells and MSCs?

Mesenchymal stem cells (MSCs) are a broad population. Muse cells are a specific, stress-tolerant subset within that population, defined by SSEA-3 expression. ATOM MSC is a Wharton's Jelly MSC product; ATOM MUSE is selected and concentrated for the Muse fraction. Learn about ATOM MUSE

What is Wharton's Jelly?

Wharton's Jelly is the soft connective tissue inside the umbilical cord. It is a rich source of young mesenchymal stem cells. ATOM MSC is sourced from Wharton's Jelly donated after healthy, consenting U.S. births. Learn more

Can ATOM MSC be used for both IV and injection?

Yes. ATOM MSC is a single mesenchymal stem cell product a licensed provider may administer intravenously or by site-specific injection. There is no separate IV and injection SKU. Route and use are determined solely by the provider.

What is the post-thaw viability?

ATOM stem cell products are released at 95% post-thaw viability. Viability is measured per lot and documented on that lot's Certificate of Analysis.

Can I see an actual stem cell count?

Yes. Watch the live stem cell count of ATOM MUSE above. The count and post-thaw viability for every lot are on that lot's COA.

Where are ATOM products processed?

At Regenerative Medicine Laboratory Solutions (RMLS Labs), an FDA-registered, cGMP-compliant laboratory in Madison, Wisconsin (FEI 3010691002), with donor screening, infectious disease testing and per-lot independent verification.

Are ATOM products FDA-approved?

No. ATOM products are not FDA-approved or FDA-cleared. "FDA-registered facility" and "cGMP compliant" refer to facility registration and manufacturing standards only, and do not constitute FDA approval, clearance or endorsement of any product.

Who performs the third-party testing?

An independent third-party laboratory. Results for each specific lot are documented on that lot's Certificate of Analysis.

What comes with each order?

A per-lot Certificate of Analysis, including post-thaw viability, plus chain of custody documentation. Orders ship overnight in cold chain packaging.

What cryopreservation solution do you use?

A chemically defined, DMSO-free, cGMP-grade solution with no serum, no recombinant proteins and no animal-derived components.

Is anything included with a stem cell order?

Yes. Every ATOM MSC and ATOM MUSE (SSEC™) order ships with a complimentary vial of ATOM X exosomes. ATOM X is also available standalone.

How do I see pricing and full specs?

Pricing, ordering and full specifications are available to verified partners. Verification takes about 24 hours. Become a partner.

Ready to see pricing?

Unlock the full biologics catalog.

Partner pricing, a dedicated rep, product education and done-for-you patient marketing.

Become a partner

Talk to the team ›Already a partner? Order ›

Regulatory & product information

For licensed providers only

Supplied exclusively to licensed healthcare professionals for provider-directed use within their scope of practice and applicable law. Not directed to consumers or patients.

Not FDA-approved

Not FDA-approved or FDA-cleared. "FDA-registered facility" and "cGMP compliant" refer to facility registration and manufacturing standards only.

Regulatory classification

ATOM products are human cells, tissues, or cellular and tissue-based products (HCT/Ps). Providers are responsible for confirming applicable regulatory status before clinical use.

No outcome claims

ATOM makes no representation that any product diagnoses, treats, cures, mitigates or prevents any disease, and guarantees no clinical outcome. Regenerative medicine is an emerging area of research.

Processing & testing

Processed at RMLS Labs, an FDA-registered laboratory in Madison, WI (FEI 3010691002). Independent third-party testing. A lot-specific COA accompanies every shipment.

Viability & specifications

95% post-thaw viability reflects the release specification. Results are measured per lot and reported on that lot's COA, not as a guarantee of any individual vial's performance.

These statements have not been evaluated by the Food and Drug Administration. ATOM products are not intended to diagnose, treat, cure, mitigate, or prevent any disease. The licensed provider is solely responsible for determining appropriate use, obtaining informed consent and complying with all applicable laws. See our Disclaimers.

Stem Cell Products & Biologics for Licensed Providers

ATOM MUSE

Which stem cell product is right for your practice?

The full specs.

ATOM MUSE (SSEC™)

ATOM MSC

ATOM X

Stem cells + exosomes. One price.

Watch a live stem cell count.

The count

The viability

The paper trail

The cell sends the message.The exosome carries it.

Six stages. Every one documented.

Ethical sourcing

Body-like environment

Exosome isolation

DMSO-free

Third-party testing

Cold chain

Built for your practice.

Orthopedic & sports medicine

Aesthetic & functional medicine

Wellness & IV therapy

Regenerative medicine clinics

Questions, answered.

Unlock the full biologics catalog.

For licensed providers only

Not FDA-approved

Regulatory classification

No outcome claims

Processing & testing

Viability & specifications

The cell sends the message.
The exosome carries it.