Legal.

1. Trademark legality: Yishengkang Film is a health product trademark owned by Guizhou Miaoyi Biotechnology (Group) Co., Ltd. The legality of trademarks shall be reviewed, approved and registered by the State Trademark Office or relevant agencies. Yishengkang Film's trademark has gone through the legal registration process and obtained trademark rights, so the use and protection of the trademark is legal.

2. Product legality: Yi Shengkang Mask is the application of Miao and Yi traditional health care concepts in external health care products for pain. The main product is the pain relief mask. In most countries, including China, health products are subject to approval and supervision by relevant departments to ensure their safety and effectiveness. Yishengkang Membrane's products have gone through legal approval procedures and obtained approval from relevant departments, and are legal in terms of operation and sales.