No, you should not apply period blood on your face.
Period blood is a mixture of blood, tissue, and mucus that is shed from the uterus during menstruation. It can contain bacteria and other microorganisms that can cause infections and irritation. Applying it to your face could lead to skin problems like acne, rashes, and infections.
Furthermore, there is no scientific evidence to support the idea that period blood has any benefits for the skin.
It's important to remember that your skin is delicate and needs to be treated with care. Always use products that are specifically designed for the face and consult with a dermatologist if you have any concerns about your skin health.