In this paper, the preparation of tea tree oil and salicylic acid anti-acne cream was studied. The single emulsifier, compound emulsifier, thickener in the acid
The concept, basic elements, and basic principles of experimental design ofcosmetics human efficacy evaluation were summarized.The commonly used types and key p
International Flavors & Fragrances Inc.(IFF), a leading innovator of scent, taste and nutrition, is opening two new facilities in China — a flavors manufacturi