As far as double eyelids are concerned, the surgeons in regular hospitals are real doctors, and there is generally no danger of practicing medicine without a license. Some of them are ophthalmologists and cosmetic surgeons, and their professional and sanitary conditions are guaranteed.
Double eyelid surgery is not big, but after all, it is an operation close to the eyes. If it is cut, it is irreversible, and it is better to go to a regular hospital.
I have a sister who works in the beauty department of stomatological hospital. It's good, it sounds incredible, but some stomatological hospitals also have cosmetology departments.
Alias of Bailiangjin: Octopus, Sophora Tonkinensis, Myrica rubra, Throat-opening Arrow, Hidden Beads under Leaves, Zhuangyuanhong, Iron Umbre