What is the maximum depth of INFINI needles that should be used in the temples/nose/chin/forehead areas?

The dept is customized to each person.  Most scars need a pass at 1-1.5 mm then another at 1.5-2.5mm.  I suggest you see an expert in combination treatments as just microneedling RF is not enough to get significant improvement in bad scars.  Best, Dr. Emer.

The skin varies in thickness depending on the area of the face. For this reason, depths of needles will vary. The infini machine has an automatic mode that will set the needle depth according the the facial area. The needle depth will vary over the 3 passes. The depth will vary from 2.5mm to 1.0mm depending on the depth of the scar. Please talk with your doctor about your goals.

In my opinion, the depth of the infini treatment needs to be based on the depth of the scars. It is not important how deep individual areas can be treated. I would treat an extra  .25 to .5 mm deeper than the depth of the scars. Multiple passes can be done at different depths. Find someone who has experience with Infini and who will show you pictures.

Let your specialist decide, as depth is dependent on many factors including, the energy (higher energy, deeper depth, safer), PD (deep depth for long PD), level of scarring, ie. superficial vs deep and most importantly anatomy. The needle itself goes in 3.5 mm in THEORY, but if you have fibrosis it may only penetrate to half the dialled depth. Respect all the areas where nerves and arteries lie, marginal mandibular nerve, superficial temporal a and n. etc... bottom line, there is no set formulation but let your Dermatologist or Plastics push the Infini to the safest possible depth for the best possible results. Dr Davin S. Lim