How long after Juvederm lip injections is it safe to have oral sex?

You are probably best to waist about 24-48 hours or until most of the swelling has come down. ........

Thanks for your question.  This is one that doesn't get asked very often but I'm sure many people have wondered this.  With any procedure, waiting until the injections sites are closed over would be the safest approach.  Also, if it the lips are swollen or bruised, it may be uncomfortable but shouldn't pose any risk to the product.  As with any procedure, if in doubt, wait until you are comfortable.