Immediately after an Optimized Light Treatment (OPL), decades' worth of targeted brown-spots and sun-damage start to crisp up and slough off.
The "before" picture shown here is about 24-hours after treatment. Within a week or so, all of the unwanted brown spots have completely shed away, and the "after" picture shows the results: beautiful, clear hands. This treatment can be done anywhere; face, chest, etc., and the “crisping” is so prominent because of the amount of sun-damage present.
Pro Tip: This treatment can ONLY treat brown-spots that exist at time of treatment, OPL sessions cannot prevent new sun-spots from occurring. In order to maintain results, sun protection needs to be practiced religiously.