Happy Cell® ASM

Revolutionising Cell Culture in 3D – World’s First Liquid Scaffold for Cells


3D Cell Culture, Cell Suspension Medium, Stem Cells, Spheroids

Happy Cell® ASM is a unique, low viscosity, low density, animal-free, cell culture reagent that permanently suspends cells.


Designed for drug discovery and biomedical research it allows easy labelling, washing and dosing of cells.


Used for:

  • Oncology & Chronic Disease models
  • Stem Cell Organoid Culture
  • Primary Cell Culture and Expansion
  • Flow Cytometry
  • Microscopy
Available in the following media bases: RPMI (catalogue number: VHCRP), DMEM (catalogue number: VHCDM), MEM (catalogue number: VHCME).
Custom formulations available on request.


Unique, low viscosity, liquid, animal-free, cell culture reagent that permanently suspends cells and allows for quick and easy sample recovery and analysis


Compatible for use with Cell lines, Stem Cells and Primary Cells


One 25ml bottle of Happy Cell® will give up to 1000 individual experiments


Widely used in the fields of cancer and stem-cell research


Optimises the formation of 3D cell structures such as spheroids and organoids


Facilitates the rapid expansion of single cells


Can be used interchangeably, or in conjunction with, all other classes of 3D cell culture technologies

Design Properties

Animal free


Consistent from batch to batch


Free of growth factors and cytokines
(If needed these can be added to meet your individual experimental requirements)




Ships at ambient temperature – No freezing or defrosting required


Compatible for both small size experiments and large size experiments: Happy Cell® allows you to use it to conduct very small scale or very large scale experiments. You can use microlitres or 1000’s of litres


Excellent optical properties –  transparent to all wavelengths of visible light with the same refractive index as water. It has been developed for use with label free, fluorescence, luminescence and optical density.

Happy Cell® Inactivation Solution

A liquid reagent used in conjunction with Happy Cell® ASM

3D Cell recovery, Tissue Recovery, 3D Cell Culture

Facilitates the recovery of 3D multi-cellular structures and dramatically improves the quality of your data.  


It does this by irreversibly disrupting the Happy Cell® ASM suspension polymer complex.  NB – It does this without compromising cellular integrity and function.


Animal free


Versatile & Easy to use


Consistent from batch to batch


Free of growth factors and cytokines


No freezing or defrosting required – ships at ambient temperature

Design Properties

Designed to be used with Happy Cell® ASM

Video User Guides, Product Information Sheets & More


A Refined Culture System for Human Induced Pluripotent Stem Cell-Derived Intestinal Epithelial Organoids

“intestinal human organoids self-proliferate in suspension culture”. In this study the researchers “investigated suspension organoid culture without scaffolds for easier harvesting and assays. Their rationale was that: “These techniques enable us to develop, maintain, and expand intestinal organoids readily and quickly at low cost, facilitating high-throughput screening of pathogenic factors and candidate treatments for gastrointestinal diseases”.


Short term ex-vivo expansion of circulating head and neck tumour cells

In this study Happy Cell ASM® was used to improve the 3D ex-vivo expansion of patient derived CTC’s. It showed CTCs grown in 3D (Happy Cell ASM®) retained their proliferative capacity for several weeks post isolation 2D Vs 3D: Cells grown in 2D remained proliferative 35-50 Days compared to those grown in 3D (Happy Cell ASM®) which remained proliferative for approximately 2 weeks longer.


Drug Discovery Approaches Utilizing Three-Dimensional Cell Culture

In this study, the authors reviewed ”several technologies currently available for producing in vitro 3D disease models. They assessed “the amenability of these technologies with high-content screening and HTS and highlight (their) own work in attempting to address many of the practical problems hampering the successful deployment of 3D cell systems in mainstream research”.


A novel label-free cell-based assay technology using biolayer interferometry

(The) “Very first use of living cells with label-free biolayer interferometry (BLI). The adherent human epidermoid carcinoma cell line A431 was suspended in 2× Happy Cell® Advanced Suspension Medium. The composition of Happy Cell® Advanced Suspension Medium is designed to keep cells floating in suspension. This property was exploited to facilitate the attachment of A431 cells directly onto the biosensors prior to analysis’.


Modelling reoxygenation effects in non-small cell lung cancer cell lines and showing epithelial-mesenchymal transition

Cancer Spheroids were successfully cultured Cells in Happy Cell ASM® in both normoxic and hypoxic conditions. A higher colony-forming ability trend was observed in cells grown under hypoxia in all NSCLC cell lines investigated.


Targeting the Nuclear Factor Kappa-LightChain-Enhancer of Activated B Cells (NF-ĸB) Pathway to Overcome Cisplatin-Resistance in Non-Small Cell Lung Cancer

This study optimised and validated Happy Cell ASM® to study the combined effects of cisplatin and DHMEQ in a 3D isogenic model of cisplatin-resistance in NSCLC using a variety of analytical techniques.


Epithelial-to-Mesenchymal Transition Enhances Cancer Cell Sensitivity to Cytotoxic Effects of Cold Atmospheric Plasmas in Breast and Bladder Cancer Systems

Cancer model (TSUPr1/B1/B2) and the non-muscle-invasive basal 5637 bladder cancer cell lines were grown in Happy Cell ASM to form three-dimensional spheroid cultures. Compared to their two-dimensional counterparts incrementally better responses were seen when using three dimensional cells. This study provides evidence that PAM (plasma activated medium) preferentially inhibits mesenchymally-shifted carcinoma cells, which have been associated with resistance to other therapies.


A Three-Dimensional Cell Culture Platform for Long Time-Scale Observations of Bio–Nano Interactions

Long-term in vitro nanoparticle studies are hampered by a lack of suitable models as standard cell culture techniques present several drawbacks, while technical limitations render current three-dimensional (3D) cellular spheroid models less suited. By controlling the kinetic processes of cell assembly and division in Happy Cell® ASM the authors were able to engineer reproducible cell clusters of controlled size and phenotype, leading to a convenient and flexible long-term 3D culture that allowed nanoparticle studies over many weeks in an in vitro setting.


What is Happy Cell® ASM?

Happy Cell® ASM is a unique, low viscosity cell culture medium designed by a scientist for use by scientists.  It meets all the requirements laboratories in the drug discovery world are demanding – that is, it is cost effective, scalable, rapidly deployable and simple to use as well as being  compatible with automation with minimal human Intervention.

Happy Cell® features a unique modified natural inert polymer suspension system that can be de-activated allowing for analysis and recovery of cell and tissue samples.
It is supplied at and should be used at, ambient temperature.

Never freeze Happy Cell® ASM

How is Happy Cell® ASM supplied?

Happy Cell® ASM is supplied as a 4X concentrate. Currently, it is only available as a 25 mL volume. This is sufficient for 1000 experiments using a 1X concentration in a 96 well plate.

How should Happy Cell® ASM be stored?

Happy Cell® ASM should be stored at 2-8°C and never frozen. Under these conditions it is stable until the expiry date on the packaging. It can be shipped at ambient temperature.

Does Happy Cell® ASM contain an antibiotic?

Yes, Happy Cell® ASM contains Penicillin-Streptomycin (Gibco, Catalogue number 15140122) at a final concentration of 1%.

If you are interested in the possibility of obtaining Happy Cell® ASM without antibiotic please contact us to discuss. Simply email enquiries@valelifesciences.com with your question(s) and contact details and we will get back to you.

Does Happy Cell® ASM contain growth factors?

Happy Cell® ASM does not contain any growth factors. Additional supplements, such as growth factors and FBS, can be added by the end user at their desired concentration.

Does Happy Cell® ASM have auto fluorescence?

Happy Cell® ASM does not present an obstacle to most fluorescence-based assays.

It is normally supplied with Phenol red included in the media but can be formulated in Phenol Red-free media if desired and specifically requested.

Which dilution of Happy Cell® ASM should I use?

Happy Cell ASM is supplied as a 4X concentrate and is readily diluted to the required working concentration with standard cell culture medium and desired additives.

A 1X concentration is appropriate for most applications, however, depending on the cell line in question, spheroids will grow at different rates and to different sizes and densities. Therefore, a higher concentration of Happy Cell ASM may be required to support larger spheroids and maintain cellular suspension.

What is the optimal temperature for dispensing Happy Cell® ASM?

Happy Cell® ASM can be dispensed at any temperature above 4° C. However, for ease, we recommend warming Happy Cell® ASM to room temperature (18 – 22° C) prior to dispensing.

How long can cells be cultured in Happy Cell® ASM?

Cells can be cultured indefinitely in Happy Cell® ASM once they are appropriately maintained.

Do cells in Happy Cell® ASM require agitation?

Cells in Happy Cell ASM do not require agitation in order to form 3D structures. If culturing in 50 mL bioreactors, however, we do recommend inverting the bioreactor gently twice post cell feeding. This is to allow the fresh Happy Cell ASM to mix with that already in the bioreactor and to facilitate the even distribution of essential nutrients to all cells.

How long before spheroid formation takes place?

The duration of time taken to observe spheroid formation in Happy Cell® ASM and for spheroids to reach a certain size varies between cell lines.

Typically, 3D structures will begin to form within 24 hours of seeding.

We recommended regular sampling and microscopic observation of cultures to monitor spheroid growth.

Can I harvest spheroids from Happy Cell® ASM?

Spheroids are easily harvested from Happy Cell® ASM using the inactivation solution.

See the product information guide for suggested protocol.


How do I disaggregate spheroids grown in Happy Cell® ASM?

Spheroid disassembly or disaggregation, can be achieved either by treating the spheroids with Accutase Solution (Merck-Sigma)  or with Trypsin/ EDTA for 20 min at 37 °C in a humidified atmosphere of 5% CO2.

The disaggregation can be enhanced by periodically back pipetting every 10 minutes until cells are fully liberated.


Can I perform microscopic analysis on spheroids cultured in Happy Cell® ASM?

Yes, Happy Cell® ASM has been formulated to be compatible with imaging systems.

Spheroids in suspension can be viewed with light microscopes.

For imaging, we recommend using the Inactivation Solution to sediment spheroids to the vessel imaging surface. From here, cells can be imaged directly, stained, washed, fixed, etc.

Vale low attachment plates are also produced from imaging quality materials.

Can I isolate protein and nucleic acids from spheroids cultured in Happy Cell® ASM?

Yes, once spheroids are treated with the inactivation solution, they can be harvested, transferred to a centrifuge tube, pelleted, and treated as you would 2D cultures. Alternatively, you could culture spheroids in 50mL bioreactor tubes and perform inactivation and centrifugation in these vessels

What culture vessel should be used to culture cells in Happy Cell® ASM?

For optimal Happy Cell® ASM performance we recommend using low attachment culture vessels such as the 50 mL bioreactors and 96 well plates supplied by Vale Life Sciences.

Are the Vale 50mL bioreactors sterile?

Yes, all bioreactors supplied by Vale Life Sciences are sterile at the time of shipping.

Is there any available literature on Happy Cell® ASM?

Yes, please visit our publications section, via this link

How stable is the Inactivation Solution?

If stored correctly (2-8°C) Happy Cell® ASM Inactivation Solution is suitable for use until the expiry date on the outer packaging.

Is Happy Cell® ASM Inactivation Solution toxic to cells?

We have tested this product extensively and even at extremely high concentrations no cellular toxicity has been observed or recorded

How do I calculate the correct amount of Happy Cell® ASM Inactivation Solution to add to my 3D Cultures?

A: If you are unsure about how much to use please refer to our user guide, or our Quick Start calculator.

Contact us now for more information