State lawmakers on Friday approved a ban on so-called 'gay conversion therapy' treatments conducted on minors.
Gay rights advocates say the practice, which is largely discredited by healthcare professionals, does more harm than good to those who are subjected to it.
"This has been a priority of the caucus for years," said Michael Golojuch, chair of the LGBT Caucus of the Democratic Party of Hawaii. "(The measure) ensures that LGQTB youth will not be tortured by mental health professionals."
Several states, including California, Oregon and New Jersey, have already passed similar laws. Maryland passed legislation banning the practice earlier this month.
The bill was opposed by religious groups who consider sexual orientation a choice.