Natural Cosmetic Formulation Online School. Learn how to make and formulate natural hair care products and skin care products. Clean Beauty formulations are plant-based, sustainable, natural, with flowers, herbs, minerals, vitamins. Learn to make cutting edge moisturizers, hair creams, co-wash, shampoo, conditioners, serums, skin cleansers, hydration mists, facial cream and more. Create your natural hair care line or skin care line.