How Does a Physician Know Exactly What Layer S/he is Injecting a Filler Into?

     An experienced plastic surgeon, particularly one who performs many facelifts, eyelid surgeries, rhinoplasties, chin surgeries, brow lifts, fat grafting, etc., can place the filler in virtually every millimeter possible. 

It is difficult to tell the exact location of the layers but here is a general guideline.

Superficial (epidermis): you can see the needle

Mid skin depth ( dermis): you cannot see the needle and the tissue is thick and needs force to push the needle through.

Deep skin (Sub-dermis): Needle can move through easily in all directions.

To be accurate in placement takes practice and experience.

Regards

Dr J

Disclaimer: This answer is not intended to give a medical opinion and does not substitute for medical advice. The information presented in this posting is for patients’ education only. As always, I encourage you to see your personal physician for further evaluation of your individual case.