Polymethyl Methacrylate (PMMA): 5 Risks, Uses, And Safety

Comprehensive guide to PMMA, its uses in dermatology, cosmetic fillers, and associated risks and treatments.

By Sneha Tete, Integrated MA, Certified Relationship Coach

Created on Jan 29, 2026

Comprehensive guide to PMMA, its uses in dermatology, cosmetic fillers, and associated risks and treatments.

Polymethyl methacrylate (PMMA) is a transparent thermoplastic, often referred to as acrylic or plexiglass, widely used as a permanent dermal filler in dermatology for correcting deep wrinkles, folds, and depressed scars. PMMA microspheres suspended in a collagen gel provide volume and stimulate collagen production for long-lasting results.

What is PMMA?

PMMA is a synthetic polymer derived from methyl methacrylate monomer. In dermatological applications, it consists of tiny PMMA microspheres (typically 30-50 micrometers in diameter) suspended in a bovine collagen carrier gel with 0.3% lidocaine for injection comfort. The microspheres are non-biodegradable, remaining permanently in the skin to support tissue structure, while the collagen gel provides initial volume and resorbs over 2-4 months.

PMMA’s biocompatibility stems from its inert nature and smooth spherical particles, which minimize immune responses compared to irregular fillers. It has been used medically since the 1940s, initially for intraocular lenses and bone cement, before cosmetic adoption in the 1980s.

Historical aspects

The use of PMMA in medicine dates to World War II, when British ophthalmologist Harold Ridley observed that PMMA fragments from shattered Spitfire canopies caused minimal inflammation in pilots’ eyes, unlike glass. This led to the first intraocular lens implant in 1949.

In orthopedics, PMMA bone cement was introduced in 1960 for hip arthroplasty fixation. Dermatological use began with collagen-PMMA mixtures like Artecoll (approved in Canada 1996, EU 1994) and Artefill (FDA-approved 2006 for nasolabial folds).

Chemical structure and properties

PMMA’s chemical formula is [CH₂C(CH₃)(COOCH₃)]_n. It is formed by free-radical polymerization of methyl methacrylate. Key properties include:

High transparency (92% light transmission)
Excellent biocompatibility and hemocompatibility
Brittle under impact but high compressive strength (85-110 MPa)
Low water absorption (<0.5%)
Biologically inert, non-absorbable

These make PMMA ideal for permanent implants.

Types of PMMA fillers

Artecoll® / Arteplast®: 25% PMMA microspheres in 75% collagen gel.

Artefill®: 20% PMMA in 80% collagen (purified, triple-filtered bovine collagen Types I and III). FDA-approved for HIV-related facial atrophy and nasolabial folds.

Indications

PMMA is indicated for:

Correction of severe nasolabial folds
Deep rhytides and atrophic acne scars
HIV-associated facial lipoatrophy
Volume restoration in cheeks, marionette lines, and oral commissures

Not suitable for lips, thin skin areas, or dynamic wrinkles.

Procedure

PMMA injection requires topical anesthesia, nerve blocks, or tumescent techniques. Using a 27-30G needle or 30G cannula:

Tunnel 3-4mm deep into mid-to-deep dermis/subcutis
Inject 0.1mL aliquots slowly while withdrawing (retrograde linear threading)
Massage to distribute evenly
Total volume per session: 1-4mL per area

Effects visible immediately; collagen gel resorbs in months, replaced by host collagen. Full results in 3-6 months; lasts 5+ years.

Contraindications

Bovine collagen allergy (requires pre-treatment skin test)
Active skin infection/inflammation
Keloid/hypertrophic scarring tendency
Autoimmune diseases
Pregnancy/breastfeeding
Immunosuppression

Avoid in mobile areas (lips, periorbit), vascular-rich zones, or thin skin.

Adverse reactions

PMMA complications (incidence 1-10%) include:

Reaction	Frequency	Onset
Persistent nodules/granulomas	Common	Weeks-months
Inflammatory reactions	Occasional	Immediate-delayed
Infection/abscess	Rare	Weeks
Vascular occlusion	Rare	Immediate
Tyndall effect	Rare	Weeks

Foreign body granulomas most common late complication.

Histopathology

Granulomas show palisading histiocytes around PMMA spheres with multinucleated giants, lymphocytes, and fibrosis. Early: acute inflammation; late: chronic granulomatous.

Prevention

Proper patient selection and skin testing
Conservative injection volumes/technique
Aseptic protocol
Post-care: ice, avoid pressure/massage 48hrs

Experienced injectors reduce risks.

Management

Conservative

Topical high-potency steroids ± occlusion
Intralesional triamcinolone (10-40mg/mL, 0.1mL/cm²)
5-FU (25-50mg/mL) or bleomycin
Minocycline/doxycycline 100mg BID
Allopurinol 100mg TID (anti-inflammatory)

Interventional

Corticosteroids ± 5-FU (60-80% success)
RF ablation/microneedling
Laser (CO2, Nd:YAG)
Surgical excision (nodular/scarring cases)

Response in 4-12 weeks; multiple sessions often needed. Recurrence possible.

Outcomes

PMMA provides superior longevity vs. HA fillers (5-15 years). 87% satisfaction at 2 years (Artefill trials). Risks higher in off-label use.

Alternatives

Filler	Duration	Reversibility
HA (Juvederm, Restylane)	6-18 months	Yes (hyaluronidase)
CaHA (Radiesse)	12-18 months	Partial
PLLA (Sculptra)	2 years	No
Autologous fat	Variable	Partial

HA preferred for safety/reversibility.

FAQ

Is PMMA permanent?

Yes, PMMA microspheres are non-biodegradable, lasting indefinitely. Collagen carrier resorbs.

Does PMMA migrate?

Rarely if injected properly (>3mm deep). Smaller particles or superficial placement increase risk.

Can PMMA be removed?

Partially via surgery/excision. No enzymatic dissolution.

Who should inject PMMA?

Experienced dermatologists/plastic surgeons only.

Cost comparison?

$800-1500/syringe; fewer treatments offset initial expense.

References

Introduction to the Properties and Uses of Polymethyl Methacrylate (PMMA) — NovusLS. 2023. https://www.novusls.com/post/introduction-to-the-properties-and-uses-of-polymethyl-methacrylate-pmma
Know Your Materials: Polymethyl Methacrylate (PMMA/Acrylic) — SyBridge Technologies. 2024. https://sybridge.com/polymethyl-methacrylate-pmma/
Poly(methyl methacrylate) — Wikipedia (citing primary sources). 2024. https://en.wikipedia.org/wiki/Poly(methyl_methacrylate)
Medical Polymethyl Methacrylate (PMMA) Suppliers — Qmed+. 2024. https://qmed.com/polymethyl-methacrylate-pmma-code006381.html
Polymethyl methacrylate Safety Profile — U.S. Food and Drug Administration (FDA). 2022-10-18. https://www.fda.gov/media/158494/download
What is PMMA and How Is It Used in Healthcare — Ansys. 2023. https://www.ansys.com/blog/what-is-pmma-how-it-is-used-healthcare

Author

Sneha TeteBeauty & Lifestyle Writer

Sneha is a relationships and lifestyle writer with a strong foundation in applied linguistics and certified training in relationship coaching. She brings over five years of writing experience to renewcure, crafting thoughtful, research-driven content that empowers readers to build healthier relationships, boost emotional well-being, and embrace holistic living.

Read full bio of Sneha Tete