Optimization of the Thai herbal extract combination
Three Thai herbal extracts, extensively regarded as anti-aging bioactive ingredients owing to their multifunctional activities, were systematically optimized to produce the greatest combinations inhibiting against free radicals. Free radicals are considered as crucial initiators of the skin aging processAccording to the in vitro antioxidant activity, the actual levels of all extracts based on FFD were established as shown in Table (According to this significant model (As a result, the best extract combination for further developing as an anti-skin aging formulation was the combination of 3% EM and 3% CA (a ratio of 1:1).