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Q.O.Fill and Q.O.Fill PRO: A Composite Filler for Full-Face Volume and Body Line, Explained by Dr. Wontak Choi
Key Facts
Date: June 29, 2015
Topic: Dermal Fillers, Stem Cell Therapy
Where: Yaan Clinic, Gangnam, Seoul
Source: Yaan Clinic announcement
Medically Reviewed by Yaan Clinic Medical Team

Fat grafting is popular for building a fuller, younger face, but it has drawbacks: fat must be taken from another part of the body, the process often needs more than one session, and grafted fat may be absorbed. A Korean news report from Sports Chosun described Q.O.Fill as an alternative, and quoted Dr. Wontak Choi of Yaan Clinic in Gangnam, Seoul. Yaan Clinic is named in the report as a clinic that offers it.
All treatments at Yaan Clinic are performed by a skilled, specialized medical team, delivering standardized, high-quality care based on the clinic's own proven clinical protocols.
What Q.O.Fill is
According to the report, Q.O.Fill is a composite filler that mixes hyaluronic acid filler with stem cells collected from the patient’s blood. Ordinary hyaluronic acid fillers last six months to a year, while Q.O.Fill is described as lasting about two years and encouraging the body’s own collagen production, which gives a clear volume effect.
It is mainly used across the face, including the forehead, cheeks, chin, nasolabial folds, dark circles and mouth corners.
Q.O.Fill PRO
Q.O.Fill PRO is the upgraded version, which the report says can also be applied to the body line. It combines hyaluronic acid filler with collagen tissue and is designed to integrate with the body, suiting volume more than fine wrinkles, and it is known as a breast filler. The report states that it has been confirmed safe by Korea’s drug regulator and that a clinical study found about 70 to 80 percent of breast volume remained after three years.
Dr. Choi recommended choosing a clinic with proven skill in Q.O.Fill, saying the treatment is advanced and offered at only a few clinics in Korea.
Related treatments at Yaan Clinic
Yaan Clinic, Gangnam, Seoul
Operating Hours
- Mon / Fri: 10:00 am – 9:00 pm (Evening hours)
- Tue / Wed / Thu: 10:00 am – 7:00 pm
- Sat: 10:00 am – 4:00 pm
- Sun / Public Holidays: Closed
- Lunch Break: 1:00 pm – 2:00 pm
Appointment Inquiries
- Phone: +82 10 5308 0499
- Address: 5, Deokbong Building, 82-gil Bongeunsa-ro, Gangnam-gu, Seoul
- Email: yaan09@naver.com


