Hyaluronic acid injections are now the most sought-after cosmetic solution for filling wrinkles, reshaping the lips, and restoring lost facial volume—all starting with the very first session. Whether you want to treat deep nasolabial folds, reduce dark circles and puffiness, or simply deeply rehydrate your skin with products like Profhilo®, this minimally invasive treatment offers visible and immediately natural-looking results.
What Is Hyaluronic Acid Injection and How Does It Work?
Hyaluronic acid is a natural molecule found in the skin that our bodies produce on their own. Its role is to attract and retain water in the skin tissues, thereby ensuring suppleness, elasticity, and volume. As the skin ages, its concentration gradually decreases, which contributes to the appearance of expression lines, hollowed-out areas, and a general loss of facial density.
The hyaluronic acid filler used in cosmetic medicine is a synthetic, biocompatible, and absorbable version of this same molecule. Injected as a gel using a fine needle or cannula, it literally fills in wrinkles, plumps up sunken areas, and rehydrates the skin from within. Because it is a substance naturally present in the body, the risk of an allergic reaction is extremely low.
The Three-Step Process
- The gel is applied precisely under the skin, in the area to be treated
- It attracts surrounding water molecules and gradually swells
- The skin regains its volume and firmness, and the smoothing effect is immediate
Ready to regain a plump, natural-looking face? Our practitioners welcome you to Claris Clinic.
Benefits: wrinkles, lips, nasolabial folds, and volume
One of the major advantages of cosmetic treatment with hyaluronic acid injections is its versatility. Almost any area of the face can be treated, with natural-looking results tailored to each individual’s facial structure.
Hyaluronic Acid for Wrinkles and Expression Lines
Hyaluronic acid for wrinkles is the primary indication for this product worldwide. Expression lines—whether superficial or deep—are smoothed out in a single session. The skin regains a smooth, even texture and a radiant appearance, without looking “frozen.”
Lip Injections: Reduced Volume and Contour
Lip injections are one of the most common procedures requested at Claris Clinic. Whether the goal is to correct volume asymmetries, redefine the Cupid’s bow, or simply add a little more fullness, the results are immediate and can be precisely tailored. A well-performed lip filler treatment respects the face’s natural proportions and does not look artificial.
Nasolabial Folds and Facial Contour
Nasolabial folds—the creases that extend from the nose to the corners of the mouth—are one of the most visible signs of skin aging. One or two milliliters of the product is often enough to significantly reduce their appearance. The treatment can be supplemented with injections around the facial contours to restore a more defined jawline.
Loss of facial volume, dark circles, and puffiness
Facial volume loss affects the cheeks, temples, and the area around the eyes. Dark circles and hollow under-eye areas—often hereditary or caused by fatigue—respond very well to injections into the tear trough. Preventing the signs of aging also involves these types of early corrective treatments, which help prevent the signs from becoming too pronounced.
Prices and Rates for Hyaluronic Acid Injections
The cost of hyaluronic acid injections varies depending on the treatment area, the amount of product used, and the practitioner’s experience. In Belgium, the rates charged by reputable clinics generally fall within the following ranges.
| Treated area | Estimated quantity | Average price (Belgium) |
|---|---|---|
| Lip Injections | 0.5 to 1 ml | starting at 250 € |
| Nasolabial folds | 1 to 2 ml | starting at 320 € |
| Dark circles and puffiness | 0.5 to 1 ml | starting at 350 € |
| Cheekbones and Facial Contour | 1 to 3 ml | starting at 380 € |
| Forehead and glabellar wrinkles | 0.5 to 1 ml | starting at 280 € |
| Complete Facial Treatment | 3 to 6 ml | based on a personalized quote |
These price ranges for hyaluronic acid injections are provided for informational purposes only. The final price for hyaluronic acid injections is determined during the initial consultation, based on your goals and the amounts needed. There will be no surprises on the day of your procedure.
Duration of Effects and Results: How Long Do They Last?
The duration of hyaluronic acid injections depends on several factors: the area being treated, the concentration of the product used, the patient’s metabolism, and their lifestyle. As a general rule, here’s what you can expect.
- Lips: between 6 and 9 months; this area is very mobile, so it resolves more quickly
- Nasolabial folds: between 9 and 15 months, depending on the depth of the wrinkle
- Dark circles and bags under the eyes: between 12 and 18 months, area with limited mobility
- Cheekbones and facial contour: up to 18 to 24 months with certain high-density products
The results of hyaluronic acid injections can be prolonged by undergoing a maintenance session before the product is completely absorbed. The injection session itself is very short: expect it to take between 20 and 45 minutes, depending on the areas being treated, including the consultation.
When will the results be visible?
The volumizing effect is immediate. A slight, temporary swelling may occur within 24 to 48 hours, particularly on the lips. The final result is visible after 10 to 15 days, once the skin has adjusted to the product and any residual swelling has completely subsided. Natural-looking results are the hallmark of a skilled practitioner and precise dosing. For further rejuvenation, facial PRP may be considered as a complementary treatment.
Risks, Side Effects, and Contraindications
Any medical procedure carries risks and side effects, and hyaluronic acid injections are no exception. It is essential to be aware of these before making your decision.
Common and temporary side effects
- Redness and mild pain at the injection site, which disappear within a few hours
- Localized swelling, most noticeable after lip injections
- Minor bruising may occur, which will subside within 5 to 10 days
- A slight initial asymmetry, which corrects itself as the product stabilizes
Risks of rare but serious side effects
Serious side effects are rare when the injection is performed by a qualified aesthetic medicine specialist. They include the formation of nodules, vascular occlusion in exceptional cases, or a Tyndall effect (bluish discoloration) if the product is injected too superficially.
Contraindications to injections
Contraindications for injections include, among others, pregnancy, breastfeeding, progressive autoimmune diseases, anticoagulant therapy, the presence of a local skin infection, and a history of reactions to dermal fillers. A comprehensive evaluation during the preliminary consultation helps identify these conditions.
Injection technique: a minimally invasive and natural procedure
Hyaluronic acid injections are performed using a minimally invasive technique that requires neither general anesthesia nor hospitalization. The procedure is performed in a doctor’s office under strict aseptic conditions.
Depending on the treatment area, the practitioner uses either a fine needle or a flexible cannula. The cannula has the advantage of significantly reducing the risk of bruising and vascular trauma. It is particularly recommended for dark circles and under-eye bags, as well as nasolabial folds. An anesthetic cream may be applied 20 minutes before the session to maximize comfort.
The natural-looking results achieved through this cosmetic procedure depend on the precision of the medical technique: the right amount of product, in the right place, with the right density. That is why the choice of practitioner is crucial.
Comparison with Other Cosmetic Treatments
Given the many options available for skin rejuvenation, it is helpful to consider hyaluronic acid injections as one of the alternatives.
| Treatment | Invasiveness | Duration of effects | Primary objective |
|---|---|---|---|
| Hyaluronic Acid Filler | Very low | 6 to 24 months | Volume, wrinkles, skin rejuvenation |
| Botulinum toxin | Very low | 3 to 6 months | Dynamic expression lines |
| Mesotherapy | Low | 3 to 6 months | Rehydrate the skin, radiance |
| Surgical Facelift | High | 5 to 10 years | Severe ptosis, structural correction |
| Skinbooster (hydration) | Very low | 4 to 6 months | Rehydrate the skin, texture |
Hyaluronic acid fillers are distinguished by their ability to both fill in wrinkles and correct volume asymmetries without surgery, with minimal recovery time. For overall skin rejuvenation, they are often combined with botulinum toxin as a complementary approach.
Choosing a Specialized Practitioner: Tips and Patient Testimonials
The success of a hyaluronic acid injection depends above all on the skills of the cosmetic physician performing the procedure. In Belgium, only physicians are legally authorized to perform these procedures. Here are the criteria to check before choosing a practitioner.
- Specialized training in aesthetic medicine or cosmetic dermatology
- Documented experience with before-and-after photos available upon request
- Mandatory preliminary consultation, with no obligation, to discuss your goals
- Use of CE-certified products from recognized medical brands
- Mastery of the hyaluronidase emergency dissolution protocol
- Complete transparency regarding the cost of hyaluronic acid injections and possible side effects
Our Safety and Quality Guarantees
- Prior medical consultation
- Exclusive, traceable, and certified medical-grade dermal fillers
- Pain management protocol incorporated into every session
- Product may be returned if you are not satisfied
- Practitioners trained in the latest cannula and microinjection techniques
FAQ: Your Questions About Hyaluronic Acid Injections
How much does a hyaluronic acid injection cost?
The price of a hyaluronic acid injection in Belgium starts at around €250 for half a milliliter used on the lips. Treatment for nasolabial folds starts at €320. Multi-area treatments qualify for volume discounts. A free preliminary consultation allows us to provide a personalized quote based on your specific needs.
What are the risks associated with hyaluronic acid injections?
Common side effects are mild: redness, temporary swelling, and small bruises. Serious complications, such as vascular occlusion, are very rare and occur almost exclusively when there is a lack of sufficient medical expertise. Choosing a trained and experienced cosmetic surgeon minimizes these risks to an absolute minimum.
Ready to take the plunge? Schedule an appointment at Claris Clinic
Hyaluronic acid injections are now one of the safest and most effective ways to restore a rested, harmonious, and natural-looking face—without surgery or prolonged downtime. Whether you want to reduce wrinkles, redefine your facial contours, or simply restore your skin’s radiance, our doctors specializing in aesthetic medicine will guide you through personalized treatment plans, using certified products and providing thorough follow-up care. Visit one of our clinics in Brussels, La Hulpe, or Liège, and leave with a treatment plan tailored to your goals.
