Dermal Filler: How It Works, Who It Suits and Recovery

Hyaluronic acid filler is a gel similar to a substance naturally found in skin. Treatment takes about 20–40 minutes, downtime is swelling or bruising for a few days to about a week, and volume is visible immediately and settles in 1–2 weeks as swelling resolves.
Medically reviewed by Dr. Lee Da-in, Medical Director, Daybeau Clinic Seomyeon · Last reviewed October 2026

What is Dermal Filler?

Hyaluronic acid filler is a gel similar to a substance naturally found in skin. It is placed where tissue has hollowed to restore volume and contour, with products chosen by firmness for each area and depth.

Common concerns

  • Nasolabial folds
  • Flat cheeks or temples
  • Under-eye hollows
  • Nose and chin profile
  • Lip volume

Treatment areas: forehead, temples, cheeks, nasolabial folds, under-eyes, nose, chin, lips.

Key facts

  • Device / product: Hyaluronic acid (HA) filler
  • Treatment time: about 20–40 minutes
  • Anaesthesia: numbing cream and lidocaine-containing products
  • Downtime: swelling or bruising for a few days to about a week
  • When results show: volume is visible immediately and settles in 1–2 weeks as swelling resolves
  • Repeat interval: varies by product, area and metabolism; often several months to over a year

Learn more

See the Dermal Filler procedure steps, recovery and side effects, and how it compares in Dermal Filler vs Thread Lift.

Medical notice: every procedure can cause side effects such as swelling, bruising, redness, pain, inflammation or pigmentation, and results and their duration vary between individuals. Suitability and method are decided only after a consultation with the doctor. This page is general information, not a diagnosis. Fees follow the clinic's official non-covered fee schedule.

Frequently Asked Questions

Can filler be dissolved?

Hyaluronic acid filler can be broken down with an enzyme called hyaluronidase. Not every filler type responds, so the product used should be confirmed.

Can under-eye filler look lumpy?

Under-eye skin is thin, so product choice and depth matter. Tell the doctor if you tend to retain fluid.

How long do filler bruises last?

Bruises usually fade within 1–2 weeks depending on blood vessels and individual factors.

Dr. Lee Da-in

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