Yes, hair DNA testing is possible but only if the follicle, or root, is still attached and if the hair is not too old. The best results are from hairs freshly pulled from the head with the follicle still attached. We prefer at least five hairs in order to maximise our chances of getting a complete DNA profile. Old hair does not give good results unless you request the advanced DNA forensics option. Cut hair cannot be used for testing unless you are ordering an MtDNA test. MtDNA testing or mitochondrial DNA testing does however, have very limited uses. In fact, its sole use is to determine a shared maternal line. The quality of the results increases with increasing freshness.

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