This is the Best Head Onsen Spa in Bangkok. Head Onsen Thailand Located at Donki Mall Thonglor 3rd floor. First impression, place looks so relaxing and staff are very polite and can speak english, When I arrived at the salon, they first used a camera to check my scalp. The treatment began with a private room with relaxing music, my head onsen start with relaxing scalp massage and wash. They used a variety of new tools, like Head Onsen machine that simulated the feeling of water falling on my for