Is it legally effective to use lipstick as a handprint?

Have legal effect. The purpose of fingerprints is to prove the contents of the agreement, which is what I really mean. As long as the fingerprint is legible, it has legal effect. If the parties conclude a contract in the form of a contract, the contract is established when the parties sign and seal or press their fingerprints, and the fingerprints pressed with lipstick have legal effect.