(TrendHunter.com) Natural Spa Factory introduced a micro-batch private-label service for spas, hotels and indie brands, featuring a named Sk:incredible sustainable skincare line made in the UK. The Bath-based…(TrendHunter.com) Natural Spa Factory introduced a micro-batch private-label service for spas, hotels and indie brands, featuring a named Sk:incredible sustainable skincare line made in the UK. The Bath-based…