Principles of testing

During pregnancy, a half of DNA of father and mother combined together into the DNA of the child and almost all cells contain the exact same DNA sequence.

The experts of LOCI center will be based on the basic principles to analyze and do DNA testing and your children to make accurate conclusions about the phylogenetic relationship of the Father-Child (Mother-Child).

However, the case is not concluded by the mutated gene locus, or inbreeding relationship, experts of LOCI will conduct to do extended tests 27, 36 gene loci, or chromosomal X / Y (the most important step is that we do this free of charge). Then will conduct consultation of local and foreign experts to assert with absolute certainty the results.

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Testing Conclusion:

If there are NO blood relationships, the accuracy will be 100% and at least two gene loci do not overlap or more. In the case of 1 to 2 gene loci do not overlap, center will analyze more 27 to 36 gene loci to confirm with absolute certainty NO blood relationship.

IF there are blood relationship Father – Son, all gene loci of the Father and the Son are the same, the probability of gain is 99.999…%. This is the highest rate and ONLY our center achieved in Vietnam.


Customers note that LOCI DNA Center does not use Pomega chemicals kit. We only use the AppliedBiosystems Kit (American) new version according to HID standard. It is the most rigorous standards in the field of genetics; the sensitivity was about 100 times the normal kit, the only prestigious centers use it.

LOCI is the ONLY DNA testing center in Vietnam to achieve the ISO 13485, GLP, WHO, ISO 9001-2008. It ensures that the control of testing results must be absolutely exact. And so, the DNA testing results of LOCI center are accepted by modern and prestigious laboratory in the world and can compare the results with each other.

LOCI is SOLE center in Vietnam results warranty and can compare results to the most developed scientific countries in the world. When you do DNA testing in the countries, the results and results of LOCI center are the same (see Warranty section).

In particular, LOCI is the only DNA center in Vietnam could get no leg hair samples (original) to do DNA testing (extra fee for special samples).

It only takes 4 hour clock to have testing results in 2 laboratories in Ho Chi Minh City and Hanoi. It is the place where do testing the fastest in Vietnam.

LOCI is reliably address of the country’s embassy and the legal authorities of Vietnam. This confirms the prestige and quality of LOCI in this mission.


The samples are used to do DNA testing:

-         Normal samples: Blood, Oral Mucosa

-         Convenient samples: Fingernails, toenails, hair root, the umbilical cord

-       Special samples: hair no root, sperm, toothbrushes, gum, condoms, blood stains on the fabric, cigarette butts….. (See the Instructions for self-sampling).


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