The Spa at Four Seasons Resort Chiang Mai is delighted to introduce the Royal Collection, a selection of wellness therapies and beauty treatments based on recipes and techniques used by ancient royalty, handed down through the centuries. Created in conjunction with Ytsara from locally sourced natural ingredients, the treatments and products are inspired by healing methods and precious ingredients that have been known to generations of royalty for their nourishing, calming and purifying effects on the body and mind.