Is the metal inside your mouth safe on a lip piercing?

yes it should be but sometimes people tend to have infections with lip piercing i think they bad in general and they shouldn't be pierced in your mouth if you like it nobody is stopping you from doing so just remember it's not neccessarily good with some potential problems that is if they ever occer if they don't then it is okay I'm not 100% percent sure i just answer questions randomly for a hobby the only good piece of advice i could really provide you with is this it's safe but not trendy because employers aren't going to give you a job unless you want to be like a tattoe artist then go right ahead but if you do well take it off prior to the interview that's a reasonable tip you should really take into consideration

Wearing metal jewelry in a lip piercing can lead to gum and/or enamel erosion. Gum erosion is permanent and VERY unattractive. You can delay erosion by wearing bioplast in your piercing. Its a lot more gentle on your mouth but it can wear away over time so you'll have to buy them more often than metal jewelry.