Scientists reported in the journal Nature in February 1989 that their combined results dated the cloth to AD 1260-1390 with a supposed confidence level of 95 percent. He concluded that the C-14 sample was not representative of the main cloth, thus invalidating the results.

Has the Shroud of Turin been tested for DNA?

They examined the human and non-human DNA found when the shroud and its backing cloth were vacuumed in 1977 and 1988. After sequencing some DNA of pollen and dust found on the shroud, they confirmed that many people from many different places came in contact with the shroud.