It takes one to five sessions at two to six week intervals. Small red spots on the face clear in one or two, while thick vessels are split across sessions since removing them all at once can leave a bigger mark. The wavelength and power needed vary with vessel size and depth, and so does the count.

The vessels that were removed do not come back, because a vessel sealed by heat is absorbed by the body and gone. New vessels can form nearby, though, influenced by constitution or UV, so some people check periodically and clear only the new ones.

There is no downtime and you can go about your day as usual. It can look bruised for a few days — a normal response as the contents show through while the vessel seals — and it is usually absorbed within a week. Heated skin is more vulnerable to UV, so sun protection is essential.