Recommended models: Nuanyou 41 degree steam eye mask, Nuanyou Feelgood steam eye mask
 
Founded in 2009, Shanghai Nuanyou Industrial Co., Ltd. is one of the pioneers in China's self-heating and heating paste product market, and has the national second-class medical device production qualification. In 2012, domestic enterprises began to develop their own steam eye mask products, and Nuanyou also independently developed a thin sheet self-heating element based on its own experience in producing warm patches, and this technology is widely used in the field of steam eye masks. In 2016, Nuanyou thin sheet self-heating element steam eye mask was recognized as the "Shanghai High-tech Achievement Transformation" project, and a number of national patents also made Nuanyou stand out from the industry.
 
Nuanyou's steam eye mask products are divided into three series, namely Nuanyou 41 degree steam eye mask, Nuanyou Feelgood series steam eye mask, and Hunan Satellite TV's official derivative series, with a total of 5 fragrance types: fragrance-free, peppermint, lavender, chamomile, and forest fragrance, among which the fragrance-free type of Feelgood series also adds cassia seed extract.
 
Nuanyou makes heat-generating materials such as iron-containing powder and activated carbon into flakes, which is safer, and can efficiently and accurately control the heating efficiency and temperature. Except for the Feelgood series products, the heating temperature is 40 degrees Celsius, and the heating temperature of the other two series products is 41 degrees Celsius, and the duration is about 20 minutes.
 
However, in terms of the appearance of the steam eye mask, except for the unique shape of the big yellow chicken in the official derivative series of Hunan Satellite TV, the other two series of products are relatively simple, which is in line with the mainstream appearance design of the steam eye mask on the market. In terms of price, the 5-piece Feelgood series is the most expensive, priced at 49 yuan, and the average price of a single piece is close to 10 yuan. However, the price of the other two series of products with 10 pieces is only 41 yuan, and the average unit price of 4.1 yuan per piece can be described as a cost-effective choice.