AlphaBiolabs uses DNA technology to establish whether or not brothers and sisters have the same father or the same father and mother. We can perform the sibling analysis without any samples from the mother or father. Unlike a paternity test which will always provide a conclusive result, sibling DNA testing is different. Statistical analysis is used to evaluate the amount of DNA shared between the tested individuals to deduce a biological relationship. For example, full siblings usually have more DNA in common than half-siblings, while half siblings normally share more DNA than unrelated persons. For every client using our service and not getting a conclusive result, we will refund the $149 laboratory processing fee, guaranteed. AlphaBiolabs is an ISO 17025-accredited laboratory. We pride ourselves on our excellent feedback and reviews from customers. Our Sibling Test was rated 5 out of 5 stars by dnatestingchoice.com a trusted independent website that gathers genuine reviews from real DNA test customers. Our sibling DNA testing kit contains a Peace of Mind DNA test request/consent/payment form, Complete instructions on how to take the DNA sibling test and how to return the samples, An already addressed envelope to send the DNA test sample back to AlphaBiolabs, Two DNA sample collection swab packages containing two swabs in each package and Individual DNA test sample envelopes for the alleged siblings. The sibling DNA testing kit is sent in discreet packaging and all client information and results are kept completely confidential. Our Client Services team is available if you have any queries.