How does the Barss flea product work on dogs? - briefly
The Barss flea formula delivers an insecticide that disrupts flea nerve function, causing quick paralysis and death upon contact with the dog’s skin. The active ingredient spreads through the animal’s natural oils, maintaining protection for several weeks.
How does the Barss flea product work on dogs? - in detail
Barss flea control for dogs relies on a systemic insecticide that is absorbed through the skin after topical application. The active ingredient, a synthetic pyrethroid, penetrates the epidermis and distributes via the bloodstream to reach parasites feeding on the animal’s blood. When a flea bites, it ingests the compound, which interferes with the insect’s nervous system, causing rapid paralysis and death.
The process occurs in several stages:
- Absorption: The liquid formulation spreads across the coat, entering the skin within minutes.
- Distribution: The substance binds to plasma proteins, circulating throughout the body for up to four weeks.
- Exposure: Fleas that attach to the dog ingest the chemical during blood meals.
- Neurotoxic effect: The pyrethroid disrupts sodium channel function in flea neurons, leading to uncontrolled firing, loss of coordination, and eventual mortality.
- Residual activity: After the initial kill, the product remains at lethal concentrations, preventing new infestations for the duration of the dosing interval.
Efficacy depends on proper application to a clean, dry surface, ensuring full coverage from the neck to the tail base. The formulation is designed to resist wash‑off from normal grooming or light rain, maintaining potency until the next scheduled dose.