Optmund is a good brand of protein powder. This is imported, not made in China. In the United States, bodybuilders often use this brand of nutritional products, which is also a good brand among the top 65,438+00 nutritional products in the United States. Prices between 360-450 yuan, generally cheaper online, cheaper than the first-hand dealers, specialized bodybuilding nutrition store 500-600 yuan. It is recommended to buy it in a place with good reputation, or recommended by an online friend, but he has a telephone inquiry to prevent counterfeiting. It should be safe!