Siblingship DNA Test

Our Siblingship DNA Test is designed to answer one of the most personal questions families face: are we full siblings, half siblings, or not biologically related? By comparing the DNA of the two individuals - and, whenever possible, their biological mother - we calculate the probability that they share one or both parents.

The standard service includes two alleged siblings and one mother's sample, which significantly improves the strength and clarity of the results. When available, undisputed siblings or additional relatives can be added to further refine the analysis; we will walk you through options and pricing so you can choose what best fits your situation.

You benefit from a private, supportive environment, simple cheek-swab collections, and clear explanations of what the probability numbers actually mean for your family. Whether you are seeking personal peace of mind or information to guide future legal conversations, we provide the science and the sensitivity you need.