What Is Silka Cream? Uses, Dosage, and What You Need to Know in 2026

Silka Antifungal Cream is one of the most effective over-the-counter treatments for fungal skin infections available in the United States today. It contains 1% terbinafine hydrochloride — a fast-acting antifungal agent that kills the fungus rather than just slowing its growth. Here's everything a patient needs to know about using it correctly in 2026.

What Is Silka Cream?

Silka Antifungal Cream is an OTC (over-the-counter) topical medication distributed by Genomma Lab USA, Inc. The active ingredient is terbinafine hydrochloride 1%, which belongs to a class of drugs called allylamines. It is available in a 1 oz (30g) tube at major retailers including Walmart, CVS, Walgreens, and Amazon.

Silka is marketed as providing up to 4x faster relief compared to older antifungals (such as those requiring 4 weeks of treatment), because terbinafine actively kills the fungus, allowing infections to clear in as little as 1 week.

What Is Silka Cream Used For?

Silka Cream is used to treat three types of common fungal skin infections:

1. Athlete's foot (tinea pedis): A fungal infection of the feet, most commonly between the toes. Characterized by itching, burning, cracking, scaling, and sometimes blistering.
2. Jock itch (tinea cruris): A fungal infection of the groin, inner thighs, and buttocks. Causes a red, itchy, ring-shaped rash. More common in men and in people who sweat heavily.
3. Ringworm (tinea corporis): A fungal infection of the body (not an actual worm). Causes ring-shaped, scaly patches on the skin.

Silka Cream is

NOT intended for: Nail fungus (toenail/fingernail), scalp infections (tinea capitis), or vaginal yeast infections. These require different treatments.

How Do You Use Silka Cream? (Dosage and Application)

Before applying, wash the affected area with soap and water and dry completely. Then follow these instructions based on your condition:

• Athlete's foot between the toes: Apply twice daily (morning and night) for 1 week
• Athlete's foot on bottom or sides of the foot: Apply twice daily (morning and night) for 2 weeks
• Jock itch: Apply once daily (morning or night) for 1 week
• Ringworm: Apply once daily (morning or night) for 1 week

Wash your hands after each application. For athlete's foot, wear well-fitting, ventilated shoes and change your socks daily. Continue treatment for the full recommended duration even if symptoms improve early — stopping too soon can allow the infection to return.

Who Can Use Silka Cream?

Silka Cream is labeled for adults and children 12 years of age and older. For children under 12, consult a doctor before use.

Do not use Silka Cream if you are allergic to terbinafine or any of its inactive ingredients (benzyl alcohol, cetyl alcohol, cetyl palmitate, isopropyl myristate, polysorbate 60, sodium hydroxide, sorbitan monostearate, stearyl alcohol).

How Long Does Silka Cream Take to Work?

Many patients notice symptom relief (reduced itching and burning) within the first few days of use. However, clinical cure — meaning the fungus is completely eliminated — takes the full treatment course to achieve. Stopping treatment early because symptoms seem better is one of the most common reasons infections return.

Compared to antifungals requiring 4 weeks of treatment (clotrimazole, tolnaftate), Silka's terbinafine active ingredient can achieve a complete cure in as little as 1 week for between-toes athlete's foot and jock itch — and 2 weeks for bottom/sides-of-foot athlete's foot.

What Is the Active Ingredient in Silka Cream?

The active ingredient is terbinafine hydrochloride 1% (1g per 100g of cream). Terbinafine belongs to the allylamine class of antifungals and works by inhibiting an enzyme called squalene epoxidase, which is essential for fungal cell membrane synthesis. This makes it fungicidal — it kills the fungus outright rather than just stopping it from growing.

Where Can You Buy Silka Cream?

Silka Cream is available at Walmart ($10.50–$14.94), CVS, Walgreens, and Amazon. No prescription is needed. If your local store is out of stock, medfinder can call pharmacies near you to find where it's available. It is also FSA/HSA eligible.

Want to understand the science behind how it works? Read: How Does Silka Cream Work? Mechanism of Action Explained.