The inventor of the formula, Dr. Gallant CHAN，is a PhD graduate and Assistant Research Professor of the Hong Kong University of Science and Technology. After Dr. CHAN left HKUST, he founded Gallant Biotechnology Limited and the cosmetic brand Dr. Pig. Dr CHAN bought back the exclusive license of the formula from the Hong Kong University of Science and Technology at a high price of HK$800,000. Dr. Pig’s Herbal Essence Series is based on Dr. CHAN’s exclusive licensed formula. At the same time, Dr. CHAN also shared his bittersweet moments of chasing his dream of becoming a scientist in the past 40 years, namely “The Story of Dr. Pig” through this products.