How does PLLA function?
Post-injection, PLLA is gradually degraded, stimulating fibroblast activity and promoting collagen synthesis. The effects are visible after 2-4 months, lasting 1-2 years (varies by metabolism).
Is PLLA injection safe?
Yes, while certified products are safer, they must be administered by qualified physicians to avoid risks like embolism and infection.
What precautions and post-care guidelines should be followed?
Contraindications: Pregnant, breastfeeding women, those with allergies, or inflammation should avoid this procedure.
Post-care: Massage the site post-injection (as advised by your doctor). Avoid strenuous activities and high temperatures to prevent nodules.
How does PLLA compare to other fillers (e.g., hyaluronic acid, collagen)?
Mechanism: Hyaluronic acid offers immediate fill, while PLLA stimulates collagen for gradual effect.
Duration: Hyaluronic acid lasts 6-12 months; PLLA lasts longer due to collagen regeneration (1-2 years).
Applications: Hyaluronic acid suits quick fillers; PLLA is ideal for natural, long-term contouring.
What are the possible adverse reactions post-PLLA injection?
Common reactions: Redness, swelling, pain, and mild bruising, typically subsiding within 1-2 weeks.
Rare risks: Improper use may cause nodules (requires medical attention) and allergic reactions (pre-skin testing needed).
What are the storage and usage guidelines for PLLA?
Store in a cool and dark place. Mix with saline, and stand for 2 minutes before injection (always follow the product instructions).