Vasodilation is the result of relaxation in smooth muscle surrounding the blood vessels. This relaxation, in turn, relies on removing the stimulus for contraction, which depends on intracellular calcium ion concentrations and is tightly linked with phosphorylation of the light chain of the contractile protein myosin.
Cost & Financing. The cost of liver spot removal depends on the treatment used and how many sessions are needed, but a basic laser treatment is generally around $575 per session. Because liver spots are mostly cosmetic, insurance may or may not cover the treatments.
The treatment leaves a small scab where the spot was; this disappears in a couple of weeks. Generally one or two treatments are needed, at $400 to $700 per session. If your spots are diffuse (like a Milky Way splash across your cheeks or chest), Chapas recommends the new Fraxel dual laser. One or two treatments, at $750 to $1,500 each, should do the trick. (And for that kind of money, let's hope so.). Keep in mind: Unless you wear a broad spectrum sunscreen every day, rain or shine, you'll be looking at new age spots no matter how often you visit the dermatologist.