What is a liquid facelift? Who it suits, what to expect and how it differs from surgery

"Liquid facelift" is an approach, not a product

A liquid facelift is not a standard medical product or a single procedure. Different clinics use the term for hyaluronic acid fillers, collagen-stimulating (biostimulator) products or combinations of these. A better question than "should I have a liquid facelift?" is: which tissue in my face needs what, and which product will be used for that purpose?

In our practice, a liquid facelift mainly refers to treatments with poly-L-lactic acid (PLLA) and calcium hydroxylapatite (CaHA) that aim at a collagen response. Where needed, hyaluronic acid filler can be planned separately for a specific volume or contour need.

How does it work?

With age the skin thins, collagen decreases, facial fat pads shrink and bone support changes. The result is hollowing of the cheeks, less defined contours and lower skin quality.

• PLLA: contains biodegradable microparticles. Over time it aims to support the body's own collagen production, gradually adding volume and tissue quality. The fullness in the first days is largely due to the preparation fluid and swelling, and is not a measure of the final result.
• CaHA: contains microspheres in a carrier gel. Depending on its form and dilution it can give structural support early on, and a collagen response may develop over time.

The two products are not interchangeable; the choice depends on the findings at consultation.

How it differs from a surgical facelift, fillers and mesotherapy

Injections do not remove excess skin. In advanced sagging, simply using more product can make the face look heavy and unnatural; surgical options are then discussed as well.

Who may it suit?

It is usually considered for adults who:

• have mild to moderate volume loss in the cheeks and mid-face
• have thinner skin with reduced elasticity
• prefer a gradual, natural result rather than a quick, obvious change
• can attend more than one session and follow-up visits

When it may not be suitable or should be postponed: allergy to product components or a history of severe allergy, a tendency to keloid or thick scars, active infection or inflammation at the treatment site, pregnancy and breastfeeding. Autoimmune disease, immunosuppressive treatment and bleeding disorders are assessed separately at consultation. If you take blood thinners, do not stop them on your own; discuss this with your doctor.

What happens on the day?

1. Consultation and planning: skin thickness, volume loss, degree of sagging and any previous fillers or procedures are assessed; the product, areas and session plan are decided.
2. Preparation: the skin is cleansed; depending on the product and area, a local anaesthetic cream or an anaesthetic-containing formulation may be used.
3. Treatment: the product is placed at the planned depth with a fine needle or cannula. It usually takes 30–60 minutes.
4. Afterwards: product-specific care and massage instructions are given; most people return to daily activities the same day.

When are results visible and how long do they last?

The fullness and swelling of the first days are temporary. With PLLA the collagen response develops gradually, so results are assessed over weeks and months; several spaced sessions are usually planned. With CaHA the initial effect depends on the form and dilution used, and collagen-related change may develop later.

Although some studies report long-lasting effects, duration varies with the person, product, age and lifestyle. No one can promise the same number of months or years to everyone.

Risks and what to watch for

The most common effects are bruising, swelling, tenderness and mild asymmetry, which usually settle within days. Less often, small lumps (nodules) felt later, granulomas or infection can develop.

Injection into a blood vessel is rare but serious. If you notice sudden severe pain, whitening or purplish discoloration of the skin, or any change in vision after treatment, contact your doctor immediately or go to an emergency department.

Unlike hyaluronic acid fillers, PLLA and CaHA cannot be dissolved with an enzyme. This makes careful patient selection, use in line with the product instructions and experienced technique especially important.