Dear Customer, thank you for your comments and sorry to hear that. This frame S960R
is made of Tr. It has no release of chemical residues, however, some customers who have sensitive skin may find it uncomfortable. I would highly suggest opting for hypoallergenic frames like those made from Stainless Steel frames and Titanium frames, they are also hypoallergenic, and they retain their shape better than other metals. Please check this link https://www.firmoo.com/help-p-144.shtml
for frame materials as reference. Also, we offer 30-Day Exchange&Return: Unsatisfactory glasses can be exchanged or refunded within 30 days of receiving. Only shipping fees will apply. Please feel free to contact us if you need. Have a nice day!