Collagen Booster · CaHA
Radiesse in Seoul
CaHA Biostimulator + Hyperdilute Body

Board-Certified Dermatologist
Dr. SangYoul Yun
AAD International Fellow
IFAAD
- Duration
- Set after assessment
- Sessions
- No universal course
- Downtime
- Varies by plan

Radiesse CaHA Treatment in Seoul
Radiesse (CaHA) in Gangnam adds support to lines around the mouth and the backs of the hands and stimulates the body's own collagen over time.
Results Over Time
Radiesse (CaHA) is a collagen biostimulator that gives immediate support and builds collagen gradually, used mainly for marionette lines and hand-dorsum volume, with a hyperdilute protocol for neck and décolletage skin quality.
01Day 0
Immediate structural lift visible. Mild swelling normal.
02Day 1–3
Possible bruising.
03Week 2–4
Minor settling as the CMC carrier resorbs.
04Month 3–12
Collagen response gradually re-volumizes.
05Follow-up
Any further treatment is decided after review.
Images are AI-generated for illustrative purposes only.
Radiesse Collagen Booster
Radiesse is a calcium hydroxylapatite (CaHA) injectable. It gives immediate support, and its CaHA microspheres stimulate the body's own collagen over time.

CaHA Biostimulator
Calcium hydroxylapatite microspheres stay where they are placed while the gel carrier is absorbed, and the body's own tissue forms around them.
Immediate + Gradual
Immediate support from the gel, then a collagen response that builds over months.
Hyperdilute Option
Diluted with saline and lidocaine, Radiesse is also used for skin quality on the neck, décolletage and body.
Treatment Process
01Clinical Consultation
Consultation and facial mapping with Dr. Yun (30 min), including non-reversibility counsel.
02Pre-Treatment Review
Medicines and supplements that affect bleeding are reviewed before treatment.
03HSV Screening
A cold-sore history is checked before perioral treatment.
04Pain management
Radiesse(+) lidocaine-premixed reduces injection pain.
05Vascular Safety
Cannula default for cheek/jaw/body; needle for precise zones.
06Standard Injection
Supraperiosteal for facial; slow, low-pressure micro-aliquots.
07Hyperdilute Body
Diluted with saline and lidocaine and spread with a blunt cannula.
08Post-Treatment Care
Skin-perfusion check, same-day photo review, and 4–6 week follow-up.
Treatment explained
How Radiesse is injected along the jawline with a cannula
A calcium hydroxylapatite (CaHA) filler is placed deep along the jawline.
Film guide (1–9)
What the numbers show
- 1. Jawline · example injection area
- 2. Example cannula entry point
- 3. Blunt-tipped cannula
- 4. Epidermis
- 5. Dermis
- 6. Subcutaneous fat
- 7. Muscle layer
- 8. Injection site
- 9. Injection site in the deep layer under the skin
In the film
- A blunt-tipped cannula enters through a small opening near the angle of the jaw.
- The cannula tip sits in the deep layer under the skin.
- Filler is injected slowly along the jawline, a little at a time.
Recovery & Care
Day 0 (first 72h)
Follow the treating clinician's instructions. Unusual or severe pain, blanching or mottled skin, any vision change, weakness, difficulty speaking, or other stroke-like symptoms require immediate emergency medical assessment; a messenger service is not an emergency channel.
Days 1–7
Avoid alcohol, sauna, vigorous exercise, and NSAIDs. Strict SPF reapplication. Mild firmness expected.
Week 2–4
Resume normal skincare. Avoid major dental work for 4 weeks. 4–6 week follow-up.
Week 2–12
Watch for delayed nodules. Report any new lump or systemic illness promptly.
Long-term
Inform your radiologist of Radiesse history before imaging.

Frequently Asked Questions
Q.What urgent warning signs matter after Radiesse?
Unusual or severe pain, blanching or mottled skin, any vision change, weakness, difficulty speaking, or other stroke-like symptoms require immediate emergency medical assessment. Calcium hydroxylapatite is not dissolved by hyaluronidase. Confirm the clinic's actual urgent contact and referral pathway before treatment; a messenger service is not an emergency channel.
References3
The clinical claims on this page (device specs, efficacy timelines, safety profile) are supported by the primary sources below. Each citation links to the original paper or regulatory record.
- [1]Radiesse (calcium hydroxylapatite) evidence and recommendations for the body: systematic review. Int J Dermatol (Galadari et al.; body evidence, not facial-efficacy evidence) (2024).
- [2]International expert consensus on managing intravascular CaHA complications. J Cosmet Dermatol (van Loghem vascular) (2020).
- [3]Vision loss associated with hyaluronic-acid fillers: systematic literature review. Aesthet Plast Surg (Kapoor et al.; HA filler review, not CaHA-specific incidence evidence) (2020).
Session summary & comparison
| Item | Details |
|---|---|
| Duration | Set after assessment |
| Sessions | No universal course |
| Downtime | Varies by plan |
| Peak result | Reassessed over time |
Related procedures
Evidence & comparison guides
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Clinic articles
- Clinic articleLateral Cheek Filler: Who Actually Needs It, and When?Sunken lateral cheeks can make the face look long, harsh, and asymmetric. A board-certified Seoul dermatologist explains who benefits from cheek filler, the dosage, and filler choice.
- Clinic articleSunken Temples: Can Filler Correct Hollow Temples?Hollow temples can make the face look harsh and aged. A board-certified Seoul dermatologist explains why temples sink, who benefits from temple filler, dosage, duration, and safety.
Notice: Individual results may vary depending on skin condition, treatment history, and recovery factors. All treatment plans are determined through individual consultation with a board-certified dermatologist. The information on this page is for reference only and does not constitute medical advice or guarantee specific outcomes.
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