Dermal fillers are injectable gels used to restore selected volume, soften lines, support facial contours, and improve proportion. Most modern fillers are made from hyaluronic acid (HA), a substance naturally found in the body. Filler treatment is a medical procedure: product selection, injection depth, anatomy, and emergency readiness are all important for safety.
What are dermal fillers?
Hyaluronic-acid filler is a sterile gel available in different firmness, flexibility, and particle structures. A doctor selects a product according to the treatment area and goal. A soft, flexible filler may suit moving areas, while a firmer product may be selected for structural support.
How do fillers work?
Filler is placed at a planned tissue depth to add volume or support. It can soften a crease, replace age-related volume loss, or adjust facial balance. Good treatment aims for proportion and natural movement rather than simply adding the largest possible amount.
Who may be suitable for filler injections?
- Adults with age-related volume loss
- People seeking improvement in selected folds or hollows
- Patients who want subtle contour or proportion adjustment
- People with realistic expectations and no active infection in the area
Pregnancy, breastfeeding, active skin infection, severe allergy history, certain autoimmune conditions, bleeding disorders, or previous permanent filler may affect suitability. Full medical history should be discussed before treatment.
Where can dermal fillers be injected?
- Cheeks and midface
- Under-eye hollows in carefully selected patients
- Nasolabial folds and marionette lines
- Lips and perioral lines
- Chin and jawline
- Temples and selected forehead contours
- Nose contouring in selected cases
Risk varies considerably by area. Nose, forehead, temple, and under-eye injections require detailed anatomical knowledge and conservative planning.
Benefits of hyaluronic-acid fillers
Results are often visible immediately, although swelling affects the early appearance. HA fillers are available for different treatment goals and can generally be dissolved with hyaluronidase when medically appropriate. They are temporary, allowing the treatment plan to change as the face ages.
Approved filler brands and authentic products
Only products authorized for use in Thailand should be considered. Patients can ask to see the sealed box, product name, lot number, expiry date, and Thai registration information. Packaging and syringes should be opened for the patient. Avoid unlicensed injectors, unusually low prices, or products with unclear origins.
How to prepare for filler treatment
- Tell the doctor about medication, supplements, allergies, and previous fillers.
- Discuss cold sores if treating the lips or surrounding area.
- Avoid alcohol and non-essential products that increase bruising when medically appropriate.
- Do not schedule treatment over active acne, rash, or infection.
What happens during filler injection?
The doctor assesses facial structure, discusses the goal, and marks the treatment area. The skin is cleansed and anesthetic may be used. Filler is placed with a needle or cannula using an anatomy-based technique. The area is reassessed for balance before aftercare is explained.
Filler side effects and serious risks
Common effects include swelling, tenderness, bruising, asymmetry, and temporary lumps. Infection, delayed inflammatory nodules, or product migration are less common. Accidental injection into a blood vessel can cause skin injury and, very rarely, visual loss or stroke. Sudden severe pain, pale or mottled skin, unusual visual symptoms, or neurological symptoms require immediate emergency assessment.
Can filler be dissolved?
Hyaluronic-acid filler can often be dissolved with hyaluronidase when correction is medically indicated. Dissolving is also a medical procedure and can cause allergy, swelling, or incomplete correction. Permanent or non-HA fillers may require a different approach and should not be treated as if they were HA.
How long do fillers last?
Duration varies by product, area, amount, metabolism, movement, and injection depth. Lip filler may change sooner than structural filler in a less mobile area. Repeat treatment should be based on assessment rather than a fixed schedule.
Dermal fillers in Bangkok at The Vanish Clinic
The Vanish Clinic provides doctor-led facial assessment and treatment planning using authorized products. The consultation covers product choice, amount, expected longevity, alternatives, and risks. Contact the clinic to discuss whether filler is appropriate for your goals.
This article is educational and does not replace personalized medical advice.
