What’s Inside a Dermal Filler? Understanding Crosslinking & Lidocaine

The Science Behind Dermal Fillers

Dermal fillers have revolutionized aesthetic medicine, providing a non-surgical way to enhance facial volume, smooth wrinkles, and contour features. But what exactly is inside these injectables?

The bottom line is that not all dermal fillers are created equal. Their performance, safety, and longevity depend on crosslinking technology, lidocaine content, and the quality of hyaluronic acid (HA) used. In this article, we break down these crucial components and explore how they influence treatment outcomes.

Hyaluronic Acid: The Backbone of Most Fillers

Hyaluronic acid is the key ingredient in most dermal fillers, offering hydration and volume retention. But here’s something interesting:

• HA naturally occurs in the human body, but it degrades quickly.
• To make it last longer in fillers, manufacturers use crosslinking technology to stabilize the HA molecules.
• This process transforms HA into a gel-like structure, making it ideal for long-lasting facial volume enhancement.

Did You Know?

Some of the most popular Korean HA fillers include Revolax Deep, Neuramis Deep, and Rejeunesse Shape. These brands use advanced crosslinking techniques to ensure longevity while maintaining a natural feel.

Crosslinking Technology: Why It Matters

Crosslinking refers to how HA molecules are stabilized to slow down their degradation. Without crosslinking, HA would dissolve within days!

Here’s what you need to know:

• BDDE (1,4-butanediol diglycidyl ether) is the most commonly used crosslinking agent in HA fillers.
• The degree of crosslinking affects gel viscosity, cohesiveness, and longevity.
• Some fillers use dual crosslinking systems, combining HA molecules of different sizes to improve flexibility and integration.

Types of Crosslinking Technologies

How Crosslinking Affects Longevity

• Lightly crosslinked fillers last 3-6 months, making them suitable for fine lines (e.g., Neuramis Light).
• Moderately crosslinked fillers last 6-12 months (e.g., Revolax Deep, Rejeunesse Fine).
• Highly crosslinked fillers can last 12-24 months, ideal for deep volume restoration (e.g., Revolax Sub-Q, Neuramis Volume).

Lidocaine in Dermal Fillers: Is It Necessary?

Did You Know? Studies find that patients treated with lidocaine-based fillers report an average of 35% less pain compared to those receiving non-lidocaine fillers.

Lidocaine is a local anesthetic commonly added to dermal fillers to reduce pain and discomfort during injections. But is it always necessary? Let’s break it down:

Benefits of Lidocaine in Fillers

• Enhances patient comfort by minimizing pain at the injection site.
• Reduces the need for separate numbing creams or anesthesia.
• Provides a smoother injection experience for practitioners.

Lidocaine vs. Non-Lidocaine Fillers

• Lidocaine fillers are ideal for patients who prefer pain-free procedures.
• Non-lidocaine fillers are preferred for patients allergic to anesthetics or who require higher precision injections.

Why Some Fillers Do and Don’t Include Lidocaine

While many modern dermal fillers contain lidocaine, some manufacturers still produce non-lidocaine versions for specific reasons:

• Regulatory Approvals: Certain countries, including regions in the EU, impose stricter regulations on lidocaine-containing fillers, requiring additional testing and certification. This leads some brands to offer non-lidocaine alternatives to ensure broader market availability.
• Doctor Preferences: Some aesthetic practitioners prefer non-lidocaine fillers because they offer more precise control during injections, particularly in delicate areas like the tear troughs. Without lidocaine, the filler retains its original viscosity, making placement easier for experienced injectors.
• Patient Considerations: A subset of patients may have allergic reactions or sensitivities to lidocaine, making non-lidocaine fillers the preferred choice. Others undergoing regional nerve blocks or numbing cream applications may not need additional lidocaine in their injectables.
• Product Versatility: Some high-viscosity fillers are formulated without lidocaine to maintain maximum lifting capacity, while others, like Neuramis Lidocaine, prioritize patient comfort during the procedure.

How to Choose the Right Filler for Each Treatment Area

Picking the right filler depends on the treatment area, desired results, and patient preference. Here’s a quick guide:

Regulatory Standards: Why Authenticity Matters

The MFDS (Ministry of Food and Drug Safety) in Korea enforces strict regulations on filler manufacturing, ensuring:

• Purity & safety standards are met before approval.
• Batch testing & clinical trials are completed.
• High molecular integrity & sterility in production.

Authenticity is critical. Lumo Medical guarantees 100% authentic fillers sourced from official Korean filler manufacturers, with a 1000% refund policy if a product is found to be fake.

Final Takeaways: What You Need to Know

• Crosslinking technology determines how long a filler lasts and how well it integrates into tissue.
• Lidocaine fillers enhance patient comfort but are not always necessary.
• Product selection should match the treatment area, balancing volume, flexibility, and longevity.
• MFDS approval ensures the highest safety standards, making Korean fillers a trusted choice worldwide.

Browse our selection and compare top dermal filler brands to find the best solutions for your clinic. Or inquire with our experts today if you have questions on anything at all!