Fingerprint with lipstick is no problem. As long as it can be proved that the contents of the agreement are my true meaning, fingerprints can be recognized and have legal effect. However, lipstick is not suitable for long-term storage, and the inkpad can be stored for a long time after drying. Inks not only contain a lot of oil, but also contain a certain amount of fixing agent. Oily materials must be dry, neither wiping off nor afraid of water, in order to protect the seal of evidence for a long time.

legal ground

Article 490 of the Civil Code If the parties conclude a contract in the form of a contract, the contract is established when the parties sign, seal or press their fingerprints. Before signing, sealing or fingerprinting, one party has fulfilled its main obligations, and the contract is established when the other party accepts it. A contract shall be concluded in written form as stipulated by laws, administrative regulations or agreed by the parties. If the parties do not do this in writing, but one party has fulfilled its main obligations and the other party accepts it, the contract is established.