Hyaluronic Acid in Tel Aviv: How Long It Lasts and Choosing a Practitioner

Hyaluronic acid is now one of the most requested procedures in aesthetic medicine, and also one of the most misunderstood: how long does the result really last, what are the real risks, and above all, how do you recognize a serious practitioner before getting injected. Here are the key facts to know.

What hyaluronic acid actually is

Hyaluronic acid is a molecule naturally present in the skin, where it retains water and contributes to its hydration and firmness. Used in aesthetic medicine, it is injected as a resorbable gel to restore lost volume, correct a hollow, or smooth a fine line.

Unlike a permanent implant, this is a resorbable product: the body gradually eliminates it, which explains why results are not permanent and require periodic maintenance. Find full details on areas and protocols on the hyaluronic acid page of the site.

An ingredient the skin already makes, just in smaller amounts with age

Injected hyaluronic acid is nothing foreign to the body: it is a molecule the skin produces itself, in decreasing amounts over the years. This natural decline is precisely what explains the loss of volume and hydration seen with age. The injection therefore simply compensates for an ingredient the body already made in larger amounts when younger, which largely explains the natural-looking result.

Cross-linked or non-cross-linked gels: a texture choice depending on the area

Hyaluronic acid products are not all identical: their degree of cross-linking (how the molecules are bound together) determines their texture and how long they hold. A softer gel suits fine, mobile areas like the lips, while a firmer gel is reserved for areas that need structure, such as the cheekbones or jawline. Choosing the right product is as much a part of the practitioner's expertise as the technical gesture itself.

How long results actually last

This is the most common question, and the answer mainly depends on the area treated:

Area	Average duration
Lips	Towards the lower end of the range (very mobile area)
Cheekbones, jawline, chin	Towards the upper end of the range (low-mobility area)
Under-eye area	Variable depending on skin thickness

On average, the range is 9 to 15 months, depending on the area, the product used, and each patient's metabolism. A very mobile area like the lips mechanically stresses the product with every facial movement, which speeds up its breakdown compared with a more stable area like the cheekbones.

Which areas can be treated

The areas most commonly corrected with hyaluronic acid are:

• Lips: hydration, contour and volume.
• Jawline and chin: redefining the oval of the face.
• Under-eye hollows: reducing dark circles and hollows.
• Cheekbones: natural volume and contour.
• Nose: correcting small irregularities, without surgery.

What a session looks like

A typical session unfolds in three stages: a consultation that reviews your expectations and facial structure, the injection itself, performed with a technique suited to the area, then simple post-treatment advice to optimize the result.

The result is visible right after the session. Slight swelling may persist for 24 to 48 hours: the final result is generally assessed around day 15, once this swelling has subsided and the product has fully settled into the tissue.

How to choose the right practitioner

This is the most important point, and the one most often overlooked. Hyaluronic acid is a medical product, injected with a needle or cannula close to sensitive anatomical structures (blood vessels, nerves). A few simple criteria help you make an informed choice:

• A doctor, not just an "injector": medical training makes it possible to understand the facial vascular anatomy and respond in the event of a rare but possible complication (vascular occlusion in particular).
• A consultation before any injection, to assess your expectations, your facial structure and rule out any contraindication.
• A certified, traceable product, whose origin and batch can be disclosed.
• A measured approach: a serious practitioner also explains the limits of the product, not just its benefits.

At the practice, these criteria translate simply: every injection is performed by Dr Dylan Mergui in person, never delegated.

Questions to ask before saying yes

Before a first injection, a few simple questions help you gauge how serious the care is: who performs the procedure, and with what training; which product is used, and can its brand be disclosed; what happens in the event of an asymmetric result or a complication; and above all, is a reflection period offered rather than an injection right after the first consultation. A practitioner comfortable with these questions has nothing to hide.

The warning sign: the promise of immediate, unlimited volume

Be wary of a pitch that only talks about adding volume, without ever mentioning the product's limits, its actual duration, or the rare possible complications. Hyaluronic acid is a precise tool, not a universal solution: a serious practitioner also explains why some requests are not reasonable, even if that means directing you toward a more suitable treatment, such as thread lifts in the case of simple sagging without volume loss.

Key takeaway: the best hyaluronic acid result goes unnoticed. The goal is not to add volume, but to restore what time has erased, with a gesture performed by a doctor who knows facial anatomy.

Safety: what you need to know

The main contraindications are pregnancy, breastfeeding, an active skin infection in the area, unstabilized coagulation disorders, and a history of allergic reaction to a filler product. A serious practitioner will systematically ask you about these points before any injection.

In brief

• Hyaluronic acid is a resorbable product, with average results lasting 9 to 15 months depending on the area.
• Choosing the right practitioner matters as much as choosing the right product: favor a doctor, a prior consultation, and a traceable product.
• Hyaluronic acid and Botox address two different concerns (volume versus expression wrinkles) and are often combined, just like thread lifts for a lifting effect.

Would you like a medical opinion before a hyaluronic acid injection in Tel Aviv? Book an appointment at Dr Mergui's practice, 8A Frishman.

This article is for informational purposes only and does not replace a medical consultation. Only a consultation can assess your facial structure and rule out any contraindication.