Loau was born and raised in Samoa. He graduated with a DDS from Fiji school of Medicine in 1978. He was working as a dentist for Samoa National Hospital for 10 years. In 1988, he migrated with his family to New Zealand. He went to Otago University in 1990 and graduated his BDS in 1993. He graduated his Post Graduate Diploma of Community Dentistry (Otago) in 2010. Loau was also a former member of the New Zealand Health Practitioners Disciplinary Tribunal. He has been in the Dentistry field for 43 years. He likes to help Pacific people patients with the Oral Health especially patients with language barrier. He loves playing pool, fishing, and rugby.