Can i get hiv from using a razor? i didnt bleed but got a red mark on skin. i bought a new bag of razors and forgot to check if they were open or no

Unlikely. : Without transfer through blood, it would be very difficult to acquire HIV in this manner, especially with presumably new razors. Furthermore, even theoretically it someone would have used the razors before you, you would have to use it right afterwards so that any blood on the razor would still be at body temperature. So I'd think it would be very unusual to acquire HIV in the manner you mentioned