Guide · 2 min read

Toenail Fungus Ingredients Explained: Terbinafine, Itraconazole, Efinaconazole, Ciclopirox & DMSO

Last updated November 4, 2026 · How we handle reviews · Owned by Vuret

The short answer

Terbinafine (an allylamine) and itraconazole and efinaconazole (azoles) attack fungus in different ways; ciclopirox is a broad-spectrum antifungal used in nail lacquers; DMSO is a penetration enhancer. Vuret Original combines terbinafine, itraconazole and DMSO; Vuret 2.0 combines efinaconazole and ciclopirox.

Ingredient guide

Ingredient	Class	Role	Found in
Terbinafine	Allylamine antifungal	Disrupts fungal cell-membrane production	Vuret Original (1.5%)
Itraconazole	Azole antifungal	Broad-spectrum; blocks a different step in membrane production	Vuret Original (1.5%)
Efinaconazole	Triazole antifungal	Antifungal developed for topical nail use	Vuret 2.0 (10%)
Ciclopirox olamine	Hydroxypyridone antifungal	Broad-spectrum; long used in nail lacquers	Vuret 2.0 (8%)
DMSO	Solvent / penetration enhancer	Intended to help actives move through the nail	Vuret Original

Why combine antifungals?

Combining agents from different classes means two different mechanisms working at once. Both Vuret formulas take this approach: Vuret Original pairs an allylamine with an azole, and Vuret 2.0 pairs an azole with ciclopirox.

Which formula is right for me?

That's the physician's call, based on your history. In general, Vuret Original is a common starting point, and Vuret 2.0 is often considered for stubborn cases or when another treatment has stalled.

Ready to start?

Complete a short online visit. A U.S.-licensed physician reviews it, and you're not charged for medication unless your prescription is approved.

Start with Vuret Original Start with Vuret 2.0

Treatments mentioned

Toenail fungus treatment Vuret Original Itraconazole 1.5% · Terbinafine 1.5% · DMSO ★★★★★ 4.3 (7) Read reviews → Toenail fungus treatment Vuret 2.0 Efinaconazole 10% · Ciclopirox olamine 8% ★★★★★ 4.3 (7) Read reviews →

Frequently asked questions

Is terbinafine better as a pill or topical?

Oral terbinafine is well studied but involves systemic exposure and often liver monitoring. Topical use avoids the pill but requires months of daily application.

What does DMSO do?

DMSO is a solvent used as a penetration enhancer, intended to help other ingredients move through the nail.

Sources

Product facts retrieved November 4, 2026.