Injection for face beauty and smoothing wrinkles and its preparation method
Patent Information
- Authority / Receiving Office
- CN ยท China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ๆๅ
- Publication Date
- 2008-02-13
- Estimated Expiration
- Not applicable ยท inactive patent
Abstract
Description
technical field
[0001] The invention relates to a cosmetic anti-wrinkle injection and a preparation method thereof, belonging to the field of tissue engineering. Background technique
[0002] Over the years, many soft tissue filling materials have appeared in the field of cosmetic surgery. At present, the most commonly used filling materials at home and abroad are as follows: 20 years ago, the first filling material approved for human body wrinkle removal and scar treatment was bovine collagen. protein. Clinical trial was carried out in 1977, and it was approved by FDA in 1981. These bovine collagens generally stay in the tissue for 6 to 9 months, so the maintenance time is relatively short. In addition, because they are foreign proteins, they often present local allergic reactions and complications, such as transient reactions with bruises, reactive herpes, asthenia, etc. Bacterial abscess, etc., may cause skin necrosis and scar hyperplasia in severe cases. The second ty...