Why HealthBaby? > Latest Cord Blood Cell Stability Tests

Most entrusted cord blood bank by parents in Hong Kong

Rigorous Service
Annually Stem Cell Stability Testing

Whether in terms of international certification standards or technology,
HealthBaby is committed to providing the highest quality of service to every family.

Most Entrusted Cord Blood Bank by Parents

HealthBaby is entrusted by most Hong Kong parents .

How to Choose a Cord Blood Bank FAQs

Any questions? Check most asked questions by the parent.

In order to closely monitor the excellent quality of cord blood stem cells, HealthBaby conducts annual quality tests according to FACT, AABB and CAP guidelines.

Laboratory staff will extract reference cord blood stem cell samples from the BioArchive®Liquid Nitrogen Storage System for stability testing. The results show that the stability of the samples after thawing is more than 90%, which fully proves that the BioArchive® is able to preserve the optimal activity of the stem cells in the long term, and reaches the level of international medical grade transplantation.

In Hong Kong, only HealthBaby and Queen Mary Hospital have been approved by CAP for CD34+ cell stability testing.

Testing YearStorage PeriodCD34+
Cell Stability*(%)
Total Nucleated Cell Recovery Rate (%)

*CD34+cell staility (%) needs to be at least 70% or higher according to the NetCord-FACT International Cord Blood Standards (Version 7).

HealthBaby’s Celebrity Clients
A Lifelong for your Baby and Family

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Jess Sum
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Most Asked Questions by Parents Related to Service Plan Selection

Different from other private cord blood banks, HealthBaby persists to use the expensive liquid nitrogen (-196℃) as storage medium to provide the most quality cord blood and umbilical cord storage service. Using of liquid nitrogen (stable temperature at -196°C) as storage media, which is recommended by reports for long-term stem cells storage19,only liquid nitrogen can keep stable -196°C. Cord blood stem cells will suspend all physiological activities and remain dormant. On the contrary, reports show that vapor nitrogen and TWEs will reduce the stem cells viability by 20%26.

One of the most critical determinant of transplantation success is stem cells viability. HealthBaby's adoption of liquid nitrogen as storage medium is the best guard to every parents.

HealthBaby is the only provider of the advanced BioArchive® system. The system is also adopted by worldwide large blood banks and 90% cord blood banks in Europe, as well as New York Blood Centre which performed most transplants worldwide. Other private cord blood bank are using the traditional vapor nitrogen storage system. According to research, cord blood stem cells will suspend all physiological activities and remain dormant19. On the contrary, reports show that vapor nitrogen and TWEs will reduce the stem cell viability by 20%26.

To cater for different needs of parents, HealthBaby also provide MVE system plan, providing one more option to expectant parents. However, all storage plan are using the expensive liquid nitrogen (-196°C) as storage means.

Other cord blood bank's MVE vapor nitrogen storage system:

  • Since the storage system is not closed, temperature fluctuation will cause TWEs upon every access of samples, seriously affect stem cells viability.
  • The claim of stem cells being able to store permanently under -135℃ is false and without any proof.

For more details of BioArchive® system please refer to BioArchive® System.

HealthBaby uses the advanced AXP® II automated processing system that has received the FDA clearance, and complies with current good tissue practices (cGTP) and good manufacturing practices (GMP). Globally, the system has already processed over a million cord blood units to date. Designed to provide high-quality stem cell concentration from cord blood, the AXP® II system has demonstrated viable CD34+ stem cell recovery of more than 97%16 that is higher than most other known available systems. It is also a functionally closed processing system which ensures the sterility of the cord blood by eliminating exposure to air contaminants16

Since the success rate of transplantation is determined by stem cells' number and viability, therefore HealthBaby introduces AXP® II to maximize the extract of most stem cells.

Processing system of other private cord blood bank:

  • The claim of Sepax® ability to extract 99.46% TNC lacks of objectivity since the data is from the cord blood bank's own experiment but not a objective third party. But according to the third parties, The American Congress of Obstetricians and Gynecologists and the largest Cord Blood Bank of U.S. (Cord Blood Registry), Sepax® can only extracts 80.3% of TNC but not 99.46%. Beware amd do not be misled. In addition, only MNC but not TNC should be the transplant sample during transplantation27.
  • Not the only automatic cord blood processing system round the globe.

For more details of AXP®II please refer to AXP®II Automated Processing System.

International accreditations serve as an important benchmark for a cord blood bank's quality. Thus, HealthBaby Group is strived to attain the most international professional accreditations to provide high quality services. Our techniques, quality and storage service met up with the stringent standard of authoritative organizations38.

Apart from fundamental AABB accreditation, HealthBaby is the FIRST and ONLY private cord blood laboratory in Hong Kong obtained CAP and FACT accreditations.

For more details of HealthBaby international accreditations please refer to Most Professional Accreditations Cord Blood Bank in Hong Kong.

HealthBaby attained H.K. Patented technology which exclusively extracting the whole cord tissue as well as the unique processing, storage and culture technologies can fully enhance the quantity and viability of tissue cells after thawing. Experiments showed that various tissue cells (adipocytes, chondrocytes and vascular endothelial cells) can be differentiated from the cord tissue processed by HealthBaby patented technology. The cell colony number derived was over 20 fold of that derived from non-minced cord tissue segment.

Contract specifies HealthBaby exclusive umbilical cord technology can culture MSCs from umbilical cord tissue, safeguarding our clients.

Remember to be aware whether other cord blood banks have patented technology for processing cord tissue. The quality and guaranty of such services are questionable.

More Questions?

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Hotline: (+852)3188-8899 / (+853)2878-6717
WhatsApp: (+852)9660-8271 or Click Here
WeChat: HealthBaby 生寶臍帶血庫
Online: Click here to submit the enquiry online
Email: enquiry@healthbaby.hk