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Updated: Jul 4, 2026
06:24
A Novel Cell Injection Method with Minimum Invasion
Published on: April 21, 2023
Minimizing adverse events associated with poly-L-lactic acid injection.
1Dermatology Surgery and Laser Center, New York, USA. rsnmd@worldnet.att.net
Summary
Poly-L-lactic acid (PLLA) injections offer cosmetic rejuvenation by stimulating collagen. Optimal reconstitution and injection techniques are crucial for maximizing PLLA
Area of Science:
- Dermatology
- Cosmetic Science
- Biomaterials
Background:
- Injectable devices are a popular alternative to surgical cosmetic rejuvenation.
- Injectable products vary in durability, from temporary to permanent, based on their mechanism of action.
- Poly-L-lactic acid (PLLA) stimulates endogenous collagen production for volume enhancement.
Purpose of the Study:
- To review the application of injectable poly-L-lactic acid (PLLA).
- To identify optimal injection techniques for PLLA to minimize adverse events and improve outcomes.
Main Methods:
- Review of existing literature on poly-L-lactic acid (PLLA) for cosmetic rejuvenation.
- Analysis of factors influencing PLLA efficacy and safety, including reconstitution, dilution, and administration techniques.
Main Results:
- Poly-L-lactic acid (PLLA) has demonstrated efficacy in correcting facial lipoatrophy for up to two years.
- Adverse events like papules and nodules can result from improper reconstitution, uneven distribution, superficial injections, or inadequate post-treatment massage.
- Correct product handling and precise administration are key to PLLA effectiveness and safety.
Conclusions:
- Optimal administration techniques for poly-L-lactic acid (PLLA) can enhance treatment results.
- Minimizing adverse events associated with PLLA injections is achievable through proper technique.
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