Founded in 2009, Shanghai Nuanyou specializes in the production of self-heating heating products, is one of the drafters of the domestic warm paste standard, and has the national second-class medical device qualification. Different from the domestic warm paste brands that generally produce low-cost basic products, Nuanyou has a number of national patents such as WY thin sheet heating element, steam hot compress beautiful eye mask, ultra-thin warm sticker, etc., with strong independent research and development strength, rich product styles, but the price is also more expensive.
 
The average heating temperature of the regular version of the warm friend warm paste is 53 °C, which can last for ten hours, and the skin is light and thin, and the comfort is high. The average heating temperature is between 41-45 degrees, and the heating duration is less than 6 hours, which is very mild, and some Chinese herbal essential oils are also added to increase the aroma, which is suitable for soothing and relaxing the body. The warm friend product has changed the domestic customary red background color and cartoon image packaging design, and adopts a fresher and fashionable background color with illustration patterns, which is fresh and eye-catching, and is also suitable for giving people as a small gift.
 
Warm friends warm compress warm patches are about 1 yuan per piece, and 41 degree series warm patches range from 4-8 yuan per piece, mainly sold through online channels. In addition to the warm sticker, Nuanyou's steam eye mask products have the characteristics of light and comfortable, using the patented technology of thin sheet heating element, with more styles, it is also recommended to buy.