Before getting hyaluronic acid, it's natural to want to know what to expect in the following days. The good news is that hyaluronic acid already exists naturally in your body, primarily in the skin and joints. This is why the body recognizes it as its own material, making it one of the safest injectables in aesthetic medicine. This doesn't mean there are no side effects. There are, but most are mild, expected, and temporary. The key is to distinguish what is considered a normal reaction and when it's worth calling the doctor.
Common Side Effects (mild and temporary) These are not truly “complications.” They are how your body reacts to the needle and the new material. Swelling (edema): The most common. It appears immediately after the injection and often peaks the next day. It gradually subsides within a few days, while in sensitive areas like the lips or around the eyes, it might last a bit longer. Small bruises (ecchymoses): Occur when the needle touches a small blood vessel. They are easily covered with makeup and resolve on their own. Redness and tenderness: The area may appear red or give you a sensation of warmth and tightness in the first few hours, until the material settles in the tissues. In most cases, these reactions subside within 2 to 14 days. Applying ice (wrapped in a cloth, never directly on the skin), keeping your head elevated when lying down, and avoiding strenuous exercise and heat helps them resolve faster.
Rare Complications Here we delve into cases that require medical attention. They are rare, but it's good to be aware of them. Allergic reaction: This is rare, as hyaluronic acid is biocompatible. When it occurs, it is usually due to one of the other ingredients in the preparation, not the hyaluronic acid itself. Asymmetry or overcorrection: When the result appears uneven or with more volume than desired. The good news is that it can be corrected: the doctor uses an enzyme, hyaluronidase, which breaks down the material and restores the area. Granulomas (nodules): Small hard lumps under the skin that may appear as the body's reaction to a foreign body. Vascular occlusion: The most serious and rarest. It happens when the material accidentally enters an artery and blocks blood flow. It causes intense pain, unusual skin discoloration, and requires immediate treatment.
How to reduce the risk The biggest difference between a smooth treatment and a complication lies in the doctor's experience. Choose a specialized doctor who has in-depth knowledge of facial anatomy, knows where the blood vessels run, and uses certified materials. Before the treatment, inform your doctor about any medications you are taking (especially anticoagulants or anti-inflammatories) and any history of allergies.
When to contact your doctor You don't need to worry about expected swelling. However, you should contact your doctor immediately if you notice: Severe, disproportionate pain that worsens Redness that spreads or a change in skin color Swelling that does not subside after two weeks Signs of infection, such as warmth and pus These are the indicators that distinguish a normal reaction from something that requires medical intervention.
Conclusion Side effects from hyaluronic acid in the face are overwhelmingly mild and temporary. A little swelling, perhaps a bruise, some redness, and then the result you were expecting. Serious complications exist, but are rare and avoided when you choose the right doctor and material. If you want to discuss what suits your face, the Facemed Clinic team can guide you. More Articles Morpheus 8 Athens: The Treatment that Rebuilds the Skin Facial Contouring with Hyaluronic Acid: How to Achieve a Defined Jawline 5 tips for protecting your facial skin in summer! Body Treatments with Machines When do the results of mesotherapy appear? Facial cleansing at home or professional? VIEW ALL
Is hyaluronic acid in the face dangerous?
When the treatment is performed by a specialized doctor, it is considered one of the safest aesthetic treatments. Serious complications are rare and mainly linked to incorrect technique or uncertified materials.
How long do the side effects last?
Mild side effects, such as swelling and redness, usually subside within 2 to 5 days. Minor bruises may take up to 10-14 days.
Can hyaluronic acid be removed if I don't like it?
Yes. Hyaluronidase breaks down the material and restores the area, so the result is not permanent.
