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Brush-on liquid

Nail Formula by Hongo Killer

4.4 out of 5 · 80 ratings

A 1.0 fl oz (30 mL) brush-on cosmetic for the look of discolored fingernails and toenails. Its carton states that the product does not contain a drug.

Active ingredient
None. A cosmetic, not a drug
Net contents
1.0 fl oz (30 mL)
Form
Brush-on liquid, brush applicator
Sold for
The look of discolored nails

$7.87$7.87 per fl oz

Take It Home on Amazon

1 bottle · 1.0 fl oz (30 mL) · price updated 7 October 2026

Good for

  • Cleaning keratin debris from a discolored nail, as the label describes
  • A brush-on routine twice daily, morning and night
  • Buying in quantity: multi-packs are sold

Look elsewhere for

  • Treating a fungal nail infection: this is not a drug
  • Athlete's foot or ringworm: see the products with a Drug Facts panel
  • Children under 2 years of age: the label says not to use it

The label

On the Nail Formula label

All Drug Facts panels

  • Twice dailyMorning and night, on clean, dry skin.

  • Not under 2 yearsNot for children under 2 years of age.

  • Not a drugThe carton states that the product does not contain a drug.

  • External use onlyAvoid contact with the eyes.

On the label

Indications

Nail Formula by Hongo Killer® helps restore color to dicolored fingernails and toenails and helps maintain healthy looking nails by removing keratin debris through cleaning.

Warnings

For external use only.

Supervise children in the use of this product.

Do not use on children under 2 years of age.

When using this product avoid contact with the eyes and mucous membrane.

Keep out of reach of children.

If swallowed, get medical help or contact a Poison Control Center right away.

If pregnant o breast-feeding, consult a professional health care, before using this product.

This product does not contain a drug nor claim any actions as defined by the United States Food and Drug Administration. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Directions

  • Clean the affected area and dry thoroughly
  • Apply a thin layer of Hongo Killer® Nail Formula over the affected area twice daily (morning and night).

Ingredients Purified water, acetic acid, glycerin, propylene glycol, aloe vera, xanthan gum and fragrance.

Label text as printed. Source: Product label published by Efficient Laboratories. Read 7 October 2026.

Directions for every form

X or Y

Nail Formula or Antifungal Solution

ComparedNail FormulaAntifungal Solution
Active ingredientNo drug ingredientUndecylenic acid 25%
FormBrush-on liquidBrush-on liquid
Net contents1.0 fl oz (30 mL)1 fl oz (30 mL)
Labeled forThe look of the nailAthlete's foot, Ringworm
Flammable warningNoYes
Price$7.87$17.12 for 2
Per ounce$7.87 per fl oz$8.56 per fl oz

Take Nail Formula for the look of the nail: a cosmetic with 7 ingredients and no drug. Take Antifungal Solution for skin around the nail: undecylenic acid 25% with a Drug Facts panel.

Questions

About Nail Formula

Does Hongo Killer Nail Formula contain tolnaftate?

No. The label lists 7 ingredients: purified water, acetic acid, glycerin, propylene glycol, aloe vera, xanthan gum and fragrance. It names no active ingredient, and the carton says the product does not contain a drug.

What does Hongo Killer Nail Formula do?

By its label, it helps restore color to discolored fingernails and toenails by removing keratin debris through cleaning. The bottle holds 1.0 fl oz (30 mL) and is applied 2 times a day.

In buyers' words

Buyers on Nail Formula

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

Excellent Product

I used this product several time and always worked.

Oscar · October 20, 2017

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