Infini, TCA CROSS, and PRP for acne scars. Is this setting strong enough? (Photo)

Infini is a popular treatment, but I prefer Intensif, because the needles are non-insulated and give more robust results. Keep in mind, a combination approach will give the most improvement. These types of scars need a combination of lasers, microneedling/prp, subcision and fillers. It will take a series of treatments and may need life-long treatments to maintain. I recommend getting a formal evaluation with an acne scarring expert. Best, Dr. Emer

I don't believe I would use these settings. A treatment level of 20 has been shown to not give a significant coagulation zone. The power is so high that the tissue coagulates and desicates around the needles and doesn't spread. Lower energy and longer pulse durations are better. I would use 3-5 TL, 400ms, and depths of 2.5, 2, and 1.75. 

Multiple treatment sessions are needed for the best results. For THIS type of scarring, factor in 3 sessions of microneedling PRP, and at least 3 sessions of subcision - PRP or spacer filler. For the best results, one should target the acne scar type with ideal treatments. The web reference below will take you to a resource. I embedded all the videos in one page to help.
For example deep ice pick scars, and narrow box car scars can be treated with TCA CROSS peels, mixed scars, rolling, and atrophic scars treated with fractional devices such as Fraxel, fractional lasers, PRP and INFINI radiofrequency. Atrophic scars (depressions) can be treated with either fat grafts, or with HA dermal fillers. Tethered and anchored scars are best treated with surgery.

The majority of patients will have a collection of different scar types, and hence a tailored treatment METHOD will be best. Careful examination, especially under angled lighting with scar mapping will give you an understanding of what are the best options for your scars.

All the best,

Dr Davin Lim. Acne scar dermatologist specialist. Brisbane, Australia.