Effective Settings for Active FX and Deep FX or Total FX?

Can someone please explain the settings that are used for Active FX and Deep FX? My MD used 17 mJ at a density of 1 (size 7) for my neck and 22.5 mJ at a density of 2 (size 5) for my face.

I don't understand this. Is this an effective setting for Deep FX?

I honestly see no improvement to skin quality. I don't smoke or sunbathe, and use high SPF sunscreen religiously. The quality of skin on my neck is rough and crepey (I don't need a facelift). My neck healed quickly (3 days), but am still red on the lower half of my face. My doctor is very experienced, and said mild redness with Deep FX is expected. Comments would be appreciated.

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1 Doctor Answer | Asked by Anonymous73 in USA

Doctor Answers (1)
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Deep FX settings Depend on Skin Type and Thickness

Deep FX Laser is a CO2 laser which is focused into very tiny spikes designed to stimulate Collagen production and tightening by slightly penetrating the dermis. A density of 1 or 2 sounds very normal. This is how close together the laser spikes are. You don't want a very high density when it comes to deep FX so these densities are correct. The facial skin has more hair follicles and oil glands which help it heal more quickly, so the density can be higher on the face than on the neck... more