There are two basic types of lasers used for cosmetic purposes: ablative and nonablative. Ablative lasers actually vaporize the top layers of damaged skin, while nonablative lasers work deeper in the skin without removing or otherwise damaging the top layers.
1 Adults average 3 m (9.8ft.) in length. 2  Males average 3.4 to 4.6 m (11.2-15.1 ft.) and weigh about 1,500 kg (3,307 lb.). 3  Females average 3 to 4 m (9.8 to 13.1 ft.) and weigh about 1,360 kg (2,998 lb.).  Beluga whales reach full size at about 10 years.
Belugas have a size relative to a bus, their average length ranges from 10 to 15 feet and in some rare cases may reach up to 20 feet. Their babies are only 3feet long. Unlike other whales the belugas have flexible necks and can rotate their heads in all directions. In wild they can live up to 35 to 50 years.