Lunavia Antifungal Pen vs. Kerasal Nail Renewal

Fungal toenails aren’t just ugly—they’re frustrating, slow to heal, and deeply personal. In our clinic, we hear it every day:
“What over-the-counter product should I try first?”

Two names dominate the space: Lunavia Antifungal Pen and Kerasal Nail Renewal. Both are Amazon bestsellers, but their purpose and approach are entirely different. If you’re trying to choose between them, this in-depth guide will help you make the right call based on science, clinical insight, and actual patient experience.

What Is Lunavia Antifungal Pen?

Lunavia Antifungal Pen is a topical treatment made to kill toenail fungus at the source. It contains 25% Undecylenic Acid, an FDA-compliant antifungal agent, delivered through a pen-style applicator for clean, targeted use.

Alongside its main ingredient, it includes natural oils like Tea Tree, Clove Bud, Jojoba, and Lavender—known for calming skin, reducing irritation, and helping restore nail health.

Users apply it twice daily to clean, dry nails. Many see improvements in color and texture within weeks. Unlike cosmetic solutions, Lunavia is built to fight the infection, not just mask it.

✅ Key Active Ingredient

• 25% Undecylenic Acid: A well-known FDA-compliant antifungal agent, effective against common fungi like Trichophyton rubrum and Candida.

🌿 Natural Supportive Oils

• Tea Tree Oil
• Jojoba Oil
• Clove Bud Oil
• Lavender Oil
  These oils have antimicrobial and soothing properties to support the skin and nail bed.

🖊️ Application Method

• Precision pen-style applicator ensures clean, mess-free application.
• Apply a thin layer twice daily on clean, dry nails and the surrounding skin.

⏱️ Expected Results

• Most users report visible improvement in 2–4 weeks with consistent use.
• Best for mild to moderate infections caught early.

⚠️ Possible Side Effects

While generally well-tolerated, some users may experience:

• Mild skin irritation or redness
• Rare reactions like itching, nausea, or fatigue (typically if over-applied)

🧠 Clinic Tip: If there’s burning or rash, stop immediately and consult a dermatologist.

What Is Kerasal Nail Renewal?

Kerasal Nail Renewal is a topical solution designed to improve the appearance of nails damaged by fungus or psoriasis. It’s not an antifungal, meaning it doesn’t kill the infection—just helps restore the look of the nail.

Its formula blends urea, lactic acid, and propylene glycol, which soften, exfoliate, and hydrate the nail. This helps reduce discoloration, brittleness, and thickness.

Applied twice daily for the first week, then nightly, Kerasal works best as a cosmetic fix for damaged nails, not as a cure for fungal infections.

🧪 Key Ingredients

• Urea: Softens and thins the nail plate (keratolytic)
• Propylene Glycol & Lactic Acid: Hydrate and exfoliate, improving nail texture and color

❌ No Antifungal Properties

• Kerasal does not kill or prevent fungal growth.
• Its label is clear: this is for improving appearance, not curing infection.

💧 Application Method

• Apply a thin layer twice daily for 1 week, then once nightly for 8+ weeks.
• Focus under the nail’s free edge and surface.

⏱️ Expected Results

• Some patients notice cosmetic improvements within 1 week.
• Works well for nails damaged after fungal infections, trauma, or psoriasis.

⚠️ Possible Side Effects

• Occasional itching, stinging, or mild burning.
• No systemic risks since it doesn’t penetrate deep tissue or bloodstream.

🧠 Clinic Tip: It’s safe for long-term use, even for diabetics or sensitive skin types.

Head-to-Head: Lunavia vs. Kerasal

🧠 Expert Clinic Recommendation

As a toenail clinic owner, here’s how I advise patients based on 10+ years of treating toenail fungus:

💥 Use Lunavia If:

• You see yellow, thickened, brittle nails
• You’re in the early stages of fungal infection
• You want a targeted, non-prescription antifungal treatment

💅 Use Kerasal If:

• Your nail is damaged but the fungus is gone
• You’re dealing with psoriatic or trauma-related nail changes
• You want faster cosmetic results

🔄 Use Both (Smart Combo Approach):

• Start with Lunavia to kill the infection
• After 2–4 weeks, layer Kerasal for visible restoration
• This dual approach tackles both infection and nail damage

🚨 One Last Word: Don’t Wait Too Long

Toenail fungus rarely goes away on its own—and the longer it lives, the deeper it grows. These topical options work only in early to moderate cases. If your nails are lifting, blackened, or painful, it’s time to see a podiatrist for oral antifungal medication or laser treatment.

✅ Final Verdict

• Lunavia Antifungal Pen is your go-to for killing fungus
• Kerasal Nail Renewal is ideal for restoring nail beauty
• Use one or both based on where your nail is in its recovery journey

Want clinic-tested guidance for your specific case? Check out our other treatment reviews or book a virtual consult—we help patients around the world fight back against stubborn nail fungus and win.

👉 Let your next step be one toward clear, clean nails.