Anti-Wrinkle Injections vs Dermal Fillers: What’s the Difference and Which Do You Need?

Patients often ask about injectable aesthetic treatments without realising that different injectables work in very different ways. Two of the most commonly confused treatments are anti-wrinkle injections and dermal fillers.

Although both are injectable treatments, they address different causes of facial ageing. Understanding the distinction is important in choosing the most appropriate and safest option.

What Are Anti-Wrinkle Injections?

Anti-wrinkle injections are prescription-only treatments that work by relaxing specific facial muscles. These muscles are responsible for expression lines that develop over time through repeated movement.

They are commonly used to soften:

• Forehead lines

• Frown lines between the eyebrows

• Lines around the outer corners of the eyes

By reducing excessive muscle contraction, the skin overlying these muscles appears smoother and more relaxed.

Anti-wrinkle injections do not:

• Add volume

• Fill deep folds

• Replace lost facial structure

What Are Dermal Fillers?

Dermal fillers are injectable gels, most commonly composed of hyaluronic acid, a substance naturally present in the skin. Fillers work by restoring volume, supporting facial structure, and improving contour.

They are typically used to:

• Restore cheek volume

• Improve jawline definition

• Enhance lips

• Soften deeper static lines visible at rest

Fillers do not affect muscle movement.

The Key Differences Explained Simply

Anti-Wrinkle Injections	Dermal Fillers
Reduce muscle activity	Restore volume and structure
Best for expression lines	Best for static lines and contour
No volume added	Adds support and shape
Temporary effect	Temporary but longer-lasting

Which Treatment Is Right for You?

The most important factor is what is causing the concern.

• Lines caused by repeated movement → anti-wrinkle injections

• Lines or hollows visible at rest → dermal fillers

• Facial volume loss → dermal fillers

• Muscle overactivity → anti-wrinkle injections

In many cases, a combined approach may be appropriate, but this should always follow a medical assessment.

Common Misunderstandings

• Anti-wrinkle injections do not “fill” lines

• Dermal fillers do not freeze facial movement

• Not everyone needs filler

• More treatment does not mean better results

Most poor outcomes occur when the wrong treatment is selected rather than from the treatment itself.

Why Medical Assessment Is Essential

Injectable treatments affect muscles, blood vessels and facial balance. UK guidance emphasises that prescription injectables should only be provided following appropriate medical consultation.

A thorough assessment should include:

• Facial analysis at rest and in movement

• Discussion of medical history

• Conservative treatment planning

Final Thought

The goal of aesthetic treatment should always be subtle, balanced, and appropriate for your individual facial anatomy.

Sources

• British College of Aesthetic Medicine (BCAM)

• General Medical Council (GMC) – Prescribing guidance

• American Academy of Dermatology – Injectable treatments overview

• NHS – Cosmetic procedure information