K9 Advantix II Small Dog Flea, Tick & Mosquito Treatment — 4–10 lb, 1-Month Waterproof Spot-On

If you want fast, simple protection for a small dog without pills or collars, this single-dose topical delivers targeted pest control in seconds. The waterproof formula becomes rain-safe after 24 hours and starts killing fleas within about 12 hours of application. Use monthly to treat existing infestations and to reduce the chance of future flea activity by preventing adults from surviving to lay eggs.

How quickly will K9 Advantix II start working on fleas?

After applying the spot-on to your dog’s skin, active ingredients spread over the coat and skin surface. Flea mortality is typically seen within the first 12 hours; ticks and mosquitoes are also affected and repelled on contact. Because the product works on contact, fleas don’t have to bite to be killed.

• Starts killing fleas in roughly 12 hours after initial application
• Repels and helps kill ticks and mosquitoes on contact
• Topical distribution across coat surface for broad coverage

Is K9 Advantix II safe and easy to apply?

Application is a quick, spot-on routine: part the hair at the base of the neck and apply the formula directly to the skin. The product is fragrance-free and becomes waterproof after 24 hours, so normal outdoor activity is fine following that period. Always read and follow the printed label for correct use and safety information.

• Single small-dose tube designed for dogs 4–10 lbs
• Fragrance-free, spot-on application takes only seconds
• Waterproof after 24 hours; avoid bathing or swimming during that first day

How often should I use this treatment and are multiple packs available?

For ongoing protection, apply the treatment once every 30 days. The formula is offered over the counter in single-month, two-dose, four-dose, and six-dose packs so you can maintain continuous coverage without needing a prescription. Consistent monthly use helps reduce flea life-cycle activity in your dog’s immediate environment.

• Apply monthly — one tube provides about 30 days of protection
• Available in multi-dose packs to simplify year-round care
• Suitable for indoor and outdoor small dogs aged 7+ weeks

Who is this for? K9 Advantix II Small Dog is formulated for small-breed dogs weighing 4–10 pounds and aged at least 7 weeks. It’s intended for pet owners who want a fast, easy topical solution to reduce fleas, ticks, mosquitoes, biting flies and lice without oral medication or collars. If your dog spends time outdoors, rides in the car, or lives where fleas and ticks are common, monthly use provides a practical way to help manage pests. Always consult the product label and your veterinarian with any specific health concerns or questions about combining treatments.

• K9 Advantix II Small Dog 30-day treatment & prevention protects dogs 4-10 lbs. from fleas, ticks, mosquitoes, biting flies and lice
• Kills fleas within 12 hours of application
• Vet-recommended formula kills & repels on contact so fleas don’t have to bite your dog to die
• Easy-to-apply topical treatment is fragrance-free and waterproof after 24 hours
• No prescription needed

Ingredients

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