Permalip implants - two implants in the same lip?

Thank you for your question. Lip Implants may be a reasonable option for those individuals who are seeking permanent lip enhancement or for those who have not been satisfied with the longevity of effect afforded by hyaluronic acid fillers.
The Perma Facial Implant is an FDA cleared device for permanent facial augmentation. Using two implants in the same lip would not likely produce a favorable result. Speak with your surgeon about other options available for lip augmentation. 

Thank you for your question, regarding the feasibility of having two Permalip lip implants too achieve the desired fullness.  I would typically advise that this wouldn't be the best idea.  You can have the biggest Permalip implant 5mm and then if you wanted your lips bigger, after a few months you can have lip filler placed onto.  This should give you the desired volume, while being safe! Alternatively, fat grafting is another option, however may have to repeat if the fat doesn't harvest.  This could become very costly.  Please make sure you find a reputable and qualified plastic surgeon who can assess you properly to give you a realistic idea of what outcome you can achieve.  All The Best

I think that's a really bad idea.  There is nothing to hold them in place and will likely shift. For really full lips, consider fat grafting, but 1 round of grafting won't do it.  Fat grafting works great, but be prepared to repeat it every few months until you get the size you want.  Good luck!