Over-the-counter antifungals

Hongo Killer antifungal powder, spray and cream

Pick the form you will use twice a day. Each Hongo Killer product is here with its active ingredient, its Drug Facts panel and its price per ounce.

Find your formCompare the line

Active ingredients
tolnaftate 1% · undecylenic acid 20% and 25% · miconazole nitrate 2%
Labeled for
athlete's foot · jock itch · ringworm
Prices from
$6.88
Hongo Killer line on a coffee table beside a bare foot

Most bought

Most popular Hongo Killer products

The ones with the most buyer ratings.

Start with the form

Powder, spray, cream or brush-on

The form decides how the product goes on and where it is easy to use.

  • Powders

    Dry forms for feet that spend the day in closed shoes: shake it on, or spray it on from a can.

    2 products · Tolnaftate 1%

    from $12.93

  • Sprays

    Nothing to rub in: a small pump bottle for the gym bag, or a tall aerosol can that sprays at any angle.

    2 products · Undecylenic acid 20% and Miconazole nitrate 2%

    from $8.87

  • Creams

    For a patch of skin you can reach and want to cover exactly. One tube size for the bag, one for the cabinet.

    2 products · Tolnaftate 1%

    from $6.88

  • Liquids

    A brush in the cap puts a thin liquid where you point it: along the edge of a nail or between two toes.

    2 products · Undecylenic acid 25%

    from $7.87

About the brand

What Hongo Killer is

Hongo Killer cream, powder, spray powder, Ultra spray liquid, pump spray and solution side by side

A name that says what it is for

Hongo is the Spanish word for fungus, and the Hongo Killer trademark registration gives that translation in so many words. The mark has been on the U.S. register since 1993 for one kind of product: treatment for the athlete's foot.

The packs speak both languages. A carton reads Cream on one face and Crema on the other, Powder and Polvo, Spray and Rociador, Nail Formula and Fórmula para las Uñas. The Drug Facts panel is printed in English, and the cream and spray cartons print a Spanish panel beside it.

Hongo Killer is a short line. It does not sell socks, insoles or foot soaks. It sells antifungals for the skin in the forms a drugstore shelf carries, plus one cosmetic for nails.

Side by side

The Hongo Killer line on one board

Active ingredient, form, net contents, labeled uses and price per ounce for every product in the line.

Every pack size
ProductActive ingredientFormNet contentsLabeled forPricePer ounce
Ultra Spray LiquidMiconazole nitrate 2%Aerosol liquid5.3 oz (150 g)Athlete's foot, Jock itch, Ringworm$8.87$1.67 / oz
Antifungal PowderTolnaftate 1%Shake-on powder7.05 oz (200 g)Athlete's foot, Jock itch, Ringworm$14.80$2.10 / oz
Spray PowderTolnaftate 1%Aerosol powder4.6 oz (130 g)Athlete's foot, Jock itch, Ringworm$12.93$2.81 / oz
Cream Family SizeTolnaftate 1%Cream1.0 oz (28 g)Athlete's foot, Ringworm$12.24$12.24 / oz
Antifungal CreamTolnaftate 1%Cream0.5 oz (14 g)Athlete's foot, Ringworm$6.88$13.76 / oz
Nail FormulaNo drug ingredientBrush-on liquid1.0 fl oz (30 mL)Nail appearance$7.87$7.87 / fl oz
Antifungal SolutionUndecylenic acid 25%Brush-on liquid1 fl oz (30 mL)Athlete's foot, Ringworm$17.12 for 2$8.56 / fl oz
Antifungal SprayUndecylenic acid 20%Pump spray1.5 fl oz (44 mL)Athlete's foot, Ringworm$13.16$8.77 / fl oz

The active ingredients

Read the top line of each Drug Facts panel and the line sorts itself into three groups. Hongo Killer puts tolnaftate 1% in its powder, its spray powder and both of its creams. Ultra Spray Liquid carries miconazole nitrate 2%. The pump spray and the brush-on solution carry undecylenic acid, at 20% and 25%.

All three are on the FDA's list of active ingredients for over-the-counter antifungals for the skin, at these strengths. That list also decides what a label may claim. It explains why the Uses on a Hongo Killer panel read much like the Uses on any other brand with the same ingredient.

So the first choice is the ingredient, and the panel is where you find it. The name on the front of the pack tells you the form.

By the label

Shop by what the label is for

7 Hongo Killer panels list athlete's foot under Uses, 7 list ringworm and 3 list jock itch.

  • Athlete's foot

    Tinea pedis: the feet and the skin between the toes.

    7 products labeled for it

  • Jock itch

    Tinea cruris: the groin and the inner thighs.

    3 products labeled for it

  • Ringworm

    Tinea corporis: ring-shaped patches on the body.

    7 products labeled for it

  • Around the nail

    Antifungal Solution is labeled for skin around and next to the nails. Nail Formula is a cosmetic for the look of the nail, with no drug in it.

    2 brush-on bottles

Four bare feet on a table around three Hongo Killer bottles

The same ingredient in four carriers

Tolnaftate 1% comes four ways in the Hongo Killer range: a shake-on powder, an aerosol powder, a half-ounce cream and a one-ounce cream. The ingredient and its strength do not change. What changes is how it goes on and how much you get.

A powder covers a whole foot and the inside of a shoe line in one shake. A cream stays where you put it, which suits a small patch. An aerosol reaches without touching the skin. The price per ounce follows the form: $2.10 per oz for the powder against $13.76 per oz for the small cream.

The tolnaftate products are also the only ones in the line whose panels mention prevention of athlete's foot with daily use. The FDA's rule allows that claim for tolnaftate alone.

The rest of the line

More Hongo Killer forms

Where every label draws the line

Each Hongo Killer drug label ends its directions with the same sentence: this product is not effective on the scalp or nails. Each one says not to use it on children under 2 years of age unless a doctor directs it.

Each one also sets a stopping point. If there is no improvement within 4 weeks for athlete's foot or ringworm, or within 2 weeks for jock itch, the panel says to stop and ask a doctor. The sprays and the solution carry a flammability warning as well.

Nail Formula by Hongo Killer stands apart from the rest. Its carton states that it does not contain a drug. It is sold for the look of discolored nails, and it has no Drug Facts panel.

Twice a day

How the labels say to use them

The same three steps run through every Drug Facts panel in the line.

Directions by form

  1. Clean and dry

    Wash the affected area and dry it thoroughly. On feet, that includes the spaces between the toes.

  2. Apply a thin layer

    Put a thin layer over the affected area twice daily, morning and night, or as directed by a doctor.

  3. Keep to the label

    The panels give 4 weeks of daily use for athlete's foot and ringworm, and 2 weeks for jock itch. If the condition persists longer, they tell you to consult a doctor.

Ultra Spray Liquid held above a bare foot

One bottle or a few

Most of the range is sold one pack at a time, and several products also come in multi-packs. A multi-pack lowers the price of each ounce only some of the time, so check the per-ounce figure beside every pack size.

Prices move. The figures here were last updated on 7 October 2026, and the price you pay is the one shown at checkout.

Questions

Hongo Killer in short

What is the active ingredient in Hongo Killer?

It depends on the product: tolnaftate 1% in the powder, the spray powder and both creams, miconazole nitrate 2% in Ultra Spray Liquid. The pump spray and the solution contain undecylenic acid, at 20% and 25%.

See every Drug Facts panel

What is Hongo Killer used for?

Hongo Killer is a line of over-the-counter antifungals for the skin. 7 of its products list athlete's foot and ringworm under Uses on the Drug Facts panel, and 3 of them also list jock itch.

Shop by condition

Which Hongo Killer product costs the least per ounce?

By weight, Ultra Spray Liquid: $1.62 per ounce in the pack of 9. Among the liquids sold by the fluid ounce, Nail Formula: $7.10 per fluid ounce in the pack of 12.

Compare the whole line

Brand passport

Hongo Killer at a glance

Hongo Killer is a brand of over-the-counter antifungal products, sold on Amazon, known for its Ultra Spray Liquid.

Hongo-Killer.com is an independent shop guide to Hongo Killer antifungal products: every powder, spray, cream and brush-on in the line with its Drug Facts panel, its net contents and its price per ounce.

Trademark
HONGO KILLER, U.S. Reg. No. 1,776,197, registered June 15, 1993
The name
The registration gives the English translation of "hongo" as "fungus"
Lines
Powders, Sprays, Creams, Liquids
Where it is sold
On Amazon
Known for
Ultra Spray Liquid

About the brand and its trademark

In buyers' words

What buyers say about the forms

Buyers describe their own experience with the form, the smell and the feel. What each product treats is on its Drug Facts panel.

All buyer reviews

and it smells like rubbing alcohol now as well

The formula has changed since I last bought this a few years ago. It used to smell purely medicinal, and now it has some scents and perfumes added to it, and it's consistency is a LOT thinner, and it smells like rubbing alcohol now as well. It still works, but it's a completely different formula than the one made a few years ago, so beware. I'm not sure it works quite as well as the old formula, but it does keep your feet smelling nice all day long, even though it's really strong at first.

Pickles · July 14, 2017 · Antifungal Solution

Use as directed, read the tiny print.

This product is not to be confused with the larger spray can. The liquid in this small pump spray bottle is different. This stuff smells very strong and tends to work rather well. 3 or 4 pumps per foot at most. ONLY apply this to your FEET and TOES. It will feel like being sterilized by fire on the more tender parts of your body. I think my bean bag pulled up somewhere behind my liver.

SoleGrave · May 30, 2026 · Antifungal Spray

Does the job!

It has a funny name, Hongo Killer, but it does a great job. Daily use helps keep the areas dry and protected. The price and quakity are spot on. I really like Hongo Killer Antifungal Powde.

Gary L. Phillips · November 15, 2025 · Antifungal Powder

Like product, but ceased spraying

I love the product, but two cans ceased spraying even though they were both more than half full.

John D Nunes · April 22, 2026 · Spray Powder