Botox vs fillers: differences, how long they last and which areas

Botox vs fillers is not really a contest, because they do different jobs. Botox (botulinum toxin) relaxes the muscles that create expression lines on the forehead, between the brows and around the eyes. Hyaluronic acid fillers add volume to folds, lips, cheeks and the under-eye hollow. So the answer to “which is better” depends on the area and the type of line, and many faces benefit from a mix of both. Below we cover the differences, how long each lasts, the risks, and how they fit in if you are travelling to Yerevan, Armenia, for another treatment.

What is the difference between Botox and fillers?

Botulinum toxin type A is a prescription medicine that temporarily blocks the signal between nerve and muscle. The muscle contracts less, so the skin above it creases less. It works on dynamic lines, the ones you see when you frown, smile or raise your brows.

Hyaluronic acid is a substance your body already contains, prepared as a gel. It is injected to fill a fold, replace lost volume or shape a feature. It works on static lines, visible at rest, and on volume loss.

Botox vs filler for the forehead, frown lines and crow’s feet

For forehead lines, frown lines (the “11s”) and crow’s feet, Botox is usually the first choice because these lines come from movement. If a frown line is etched in even at rest, a tiny amount of soft filler is sometimes added, but this is a delicate area and needs a cautious injector.

On the forehead, less is often more: over-relaxing the frontalis muscle can drop the brows and make the eyes look heavier.

Lips, smile lines and under-eyes: where fillers lead

For smile lines, lips, tear troughs, cheeks and chin, hyaluronic acid filler is normally the tool. A few practical points:

• Smile lines (nasolabial folds): often better improved by restoring cheek volume than by filling the fold itself.
• Lips: filler adds volume and definition. A small Botox “lip flip” only rolls the upper lip out slightly; it does not add volume.
• Under-eyes: filler can help a tear-trough hollow in selected people; with bags or loose skin it is not the answer and can make things look worse.
• Marionette lines and jawline: filler can soften and define, but it does not lift advanced sagging.

How long do Botox and fillers last, and what drives the cost?

Botox typically lasts about 3 to 4 months, and with regular sessions some people find it lasts a little longer. Hyaluronic acid usually lasts 6 to 12 months: shorter in mobile areas like the lips, longer in deeper areas such as cheeks or chin, depending on the product.

A common search is “is filler or Botox more expensive”. Botox cost depends on the number of areas and units; filler cost depends on the number of syringes and the product. Rather than comparing price per area, compare who injects, which product is used and whether you are shown the packaging.

Botox and filler risks: what you should know

Both are routine, but both are medical procedures. With Botox the usual side effects are small bruises and a mild headache; less commonly asymmetry or a temporary droop of the eyelid or brow, which recovers within weeks.

With fillers, swelling and bruising are common, and lumps, product migration or infection can occur. The most serious complication, which is rare, is blocking a blood vessel, which can damage the skin or, very rarely, affect vision. That is why the injector should be a doctor with solid anatomical knowledge and hyaluronidase on hand.

Before treatment, it is fair to ask your injector which product will be used and whether you can see the packaging, how many units or millilitres are planned and why, whether hyaluronidase and a protocol for vascular complications are available, and how the follow-up and any touch-up will work.

Does it make sense to have injectables in Yerevan?

To be honest, flying to Armenia only for a Botox top-up or a syringe of filler rarely makes sense. It fits better as an add-on to another treatment, such as facial surgery or eyelid surgery, with your doctor deciding the order. Injections are usually avoided in an area that will be operated on in the weeks before surgery.

If you are treated in Yerevan, the Botox review happens at about two weeks, by photo or video call if you are already home. After Botox, avoid lying flat for a few hours, rubbing the area and intense exercise for the first day; after filler, avoid saunas, heat and firm pressure for a few days. Flying is usually fine the next day. Medarmenia checks which clinic and doctor will treat you and which products they use, and fits it into your stay. See our services.

Frequently asked questions

Which is better for wrinkles, Botox or fillers?

For expression lines on the forehead, between the brows and around the eyes, Botox. For deep folds and lost volume, hyaluronic acid filler.

Can Botox and fillers be done together?

Yes, very often in the same session or a few weeks apart. Your doctor plans the order based on the areas treated.

Can fillers be dissolved?

Hyaluronic acid fillers can be dissolved with an enzyme called hyaluronidase. Botox cannot be reversed, but it wears off on its own within months.

Do Botox and fillers hurt?

They involve quick injections; many fillers contain a local anaesthetic and numbing cream can be used. Discomfort is mild and short-lived.

When does Botox start working?

You usually notice it after 3 to 5 days, with the full effect at around two weeks.

Coming to Yerevan for another treatment and wondering whether adding Botox or filler makes sense? Tell us through our contact page and we will arrange a free online consultation and a personal estimate.

This article is for general information and does not replace a consultation with a qualified doctor.