I often moisturize my face with blood.
What do you even mean? Why would you moisturize your face with blood?
It keeps my skin firm.
Moisturizing your face with blood is a bad idea because blood can carry viruses and pathogens that could be dangerous to your health. Only moisturize your face with approved moisturizers or products recommended by your dermatologist, otherwise you may be putting your health at risk.
Don't try to lecture me if you haven't tried it before. It really works! Have you tried it before?
No, I have never heard of these kinds of facials. But even if it is working for you, it is still a huge risk because you never know if the blood is unsanitary, as there is no regulation for such things. I still really suggest visiting a professional spa, they will be able to help you with your skin in a very safe way, and give you even better results than blood facials.