With the help of mitochondrial DNA, kinship can be established only between mother and child using mitochondrial DNA from hair without bulbs; Nuclear DNA is still present in hair without roots (up to several hundreds of picograms per hair), only it is highly degraded. However, it can also be used for identification, but it is better with mini-STRs with short amplicons.
Виталий Кирвель I did not realize that you could get Nuclear DNA from a hair shaft. However, since it is highly degraded it is not much use for Forensic Science. Thank you for this information.