People often assume stem cells come from one place. They do not. There are several distinct sources, and cells from different sources are not interchangeable.
Adult tissue
Adults carry stem cells in various tissues, including bone marrow and fat. These cells participate in ordinary maintenance and repair. They are generally more limited in what they can become than cells from earlier developmental stages, and their characteristics can change with age.
Perinatal tissue
Tissue associated with birth — such as umbilical cord blood and cord tissue — can be a source of stem cells. Cord blood banking for specific medical uses has an established history. Donation and collection in this area are governed by consent and screening requirements.
Embryonic sources
Embryonic stem cells can develop into a very wide range of cell types, which makes them scientifically significant and also the most ethically debated source. Research using them is subject to specific regulatory and ethical oversight that varies by country.
Reprogrammed cells
In 2006, researchers demonstrated that ordinary adult cells could be reprogrammed into a stem-cell-like state. These are called induced pluripotent stem cells, or iPSCs. The discovery received a Nobel Prize in 2012 and opened up research routes that do not depend on embryonic tissue. iPSCs are used extensively in laboratory research.
Consent and ethics
Wherever human biological material is involved, informed consent, donor screening and appropriate oversight are not optional extras. They are part of what makes the material legitimate to work with at all.
For Verified Biologics' own sourcing practices, see The Verified Standard™.