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.
The beluga whale or white whale (Delphinapterus leucas) is an Arctic and sub-Arctic cetacean.It is one of two members of the family Monodontidae, along with the narwhal, and the only member of the genus Delphinapterus.This marine mammal is commonly referred to simply as the melonhead, beluga or sea canary due to its high-pitched twitter.rom a conservation perspective, the beluga was placed on the International Union for Conservation of Nature âs Red List in 2008 as being near threatened; the subpopulation from the Cook Inlet in Alaska is considered Critically Endangered and is under the protection of the United States' Endangered Species Act.