Botulinum Toxin Botox and Dermal Fillers: What to Know for Natural-Looking Results
Learn about botulinum toxin and dermal fillers. This guide explains how these non-surgical treatments work, who can have them, and what results to expect.

Botulinum Toxin and Dermal Fillers: What to Know for Natural-Looking Results
Medically reviewed by Dr. Nayim Karadogan · Last reviewed August 11, 2026 · 7 min read
Botulinum toxin and dermal fillers are both non-surgical aesthetic treatments used to address signs of aging. Botulinum toxin can smooth wrinkles caused by muscle movement, while dermal fillers can restore lost volume and soften deeper lines. When performed by a qualified doctor, both treatments aim to achieve subtle, natural-looking results.
What are botulinum toxin and dermal fillers?
Botulinum toxin is a purified protein that, when injected in small amounts, temporarily relaxes specific facial muscles. This can reduce the appearance of dynamic wrinkles, which are lines that form when you make facial expressions, such as frown lines between the eyebrows or crow's feet around the eyes. One well-known brand name for botulinum toxin is Botox.
Dermal fillers are gel-like substances injected beneath the skin to restore lost volume, smooth lines, and enhance facial contours. Most dermal fillers are made with hyaluronic acid, a substance naturally found in the body that helps skin stay hydrated and plump. Fillers can address concerns such as deep lines around the mouth, thinning lips, or hollow areas under the eyes and in the cheeks.
These treatments can improve the appearance of wrinkles and volume loss. They cannot, however, change your underlying bone structure, correct severe skin sagging, or achieve the same outcomes as surgical procedures.
Who is suitable for botulinum toxin and dermal fillers?
People considering botulinum toxin or dermal fillers are generally in good health and have realistic expectations about the outcomes. They may wish to soften facial lines, restore lost volume, or improve facial symmetry.
A careful qualified doctor would turn away certain individuals. You should not have these treatments if you are pregnant or breastfeeding, as this is a contraindication, meaning a medical reason not to have the treatment. People with certain neurological conditions or allergies to any components of the injections may also not be suitable for botulinum toxin. Likewise, those with active skin infections at the proposed injection site should wait until the infection clears. It is important to discuss your full medical history with your doctor during the consultation.
How do these treatments work?
The Consultation
Your treatment journey begins with a consultation with a qualified doctor. During this meeting, you will discuss your aesthetic goals and concerns. The doctor will review your medical history, examine your facial structure, and assess your skin condition. This is also when you will learn about the potential risks and benefits of the treatments, helping you decide if they are right for you.
The Appointment Itself
Before the injections, the qualified doctor or a nurse may apply a topical anesthetic, which is a numbing cream, to the areas to be treated. This helps to reduce discomfort. The doctor will then use very fine needles or a cannula, which is a blunt tube used instead of a sharp needle, to precisely inject the product into the target areas. For botulinum toxin, the injections are made into specific muscles to relax them. For dermal fillers, the product is injected under the skin to add volume or fill lines. The process is usually quick, often taking less than an hour, depending on the number of areas being treated.
The Hours and Days After
After the treatment, you may notice some temporary effects at the injection site, such as redness, swelling, or bruising. These are common and usually mild. Your doctor will provide you with aftercare instructions, which are guidelines on what to do and what to avoid in the days after your treatment. These often include avoiding strenuous exercise, excessive heat, alcohol, and rubbing the treated areas for a short period. Following these instructions helps ensure proper healing and good results.
How long do the results last?
The results from both botulinum toxin and dermal fillers are temporary. Botulinum toxin effects typically become noticeable within a few days and gradually fade as the treated muscles regain their activity. Many people consider a top-up session when they notice the effects starting to wear off. The exact duration of effect varies by individual and the treated area.
Dermal fillers, particularly those made with hyaluronic acid, are naturally broken down by the body over time. The longevity of filler results can depend on the product used, the injection site, and individual metabolism. Many patients discuss a top-up session with their doctor when they observe the volume diminishing. Your qualified doctor can advise you on the expected duration based on your specific treatment.
What are the risks and limits?
Like all medical procedures, botulinum toxin and dermal filler treatments carry potential risks, though many are mild and temporary. Common side effects include bruising, swelling, redness, and tenderness at the injection site. Sometimes, slight asymmetry, where one side of the face looks different from the other, can occur. These usually resolve as the initial swelling subsides.
Less common risks for fillers include the formation of a nodule, which is a small firm lump under the skin, or filler migration, where the filler moves away from where it was placed. A rare but serious risk with dermal fillers is vascular occlusion. This occurs when filler accidentally blocks a blood vessel and requires urgent medical care. Signs of vascular occlusion include sudden, severe pain, blanching (whitening) of the skin, or a mottled (patchy) appearance in the treated area or nearby. If you notice any of these signs, you must contact your clinic or doctor immediately.
For botulinum toxin, rare side effects can include temporary drooping of an eyelid or eyebrow. The extent of these risks and how long the results last can vary significantly from patient to patient. Always discuss any concerns with your qualified doctor.
Frequently asked questions
Does the treatment hurt?
Most patients report that the injections cause only mild discomfort. The use of a topical anesthetic, and some fillers containing a local anesthetic, helps to make the experience more comfortable. Many describe the feeling as a brief pinch or sting.
How long is the downtime?
Downtime, which is the time before you can go back to your normal activities, is usually minimal for these treatments. Most people can return to their daily routine immediately. However, you might experience some swelling or bruising for a few days, which can be easily covered with makeup.
Can I combine botulinum toxin and dermal fillers?
Yes, it is common for qualified doctors to use both botulinum toxin and dermal fillers in combination. They address different types of concerns – botulinum toxin for dynamic wrinkles and fillers for volume loss and static lines – allowing for a more complete facial rejuvenation plan.
What if I don't like the results of dermal filler?
If you are unhappy with the results of a hyaluronic acid-based dermal filler, a qualified doctor can often inject hyaluronidase. This is an enzyme that dissolves the hyaluronic acid, allowing the filler to be removed or adjusted. The effects of botulinum toxin are temporary and will naturally wear off over time.
How much do these treatments cost?
The cost of botulinum toxin and dermal filler treatments varies. It depends on several factors, including the type and amount of product used, the number of areas treated, and the fees charged by the qualified doctor and clinic. During your consultation, your doctor can provide a personalized quote based on your specific treatment plan.



