Back to Ingredient Dictionary

DELTAMETHRIN

Description

Deltamethrin is a synthetic pyrethroid insecticide widely used in agriculture and public health programs. However, it has found applications in certain haircare formulations due to its potent anti-parasitic properties. This compound is particularly effective against head lice and other ectoparasites that can infest the scalp and hair.

In haircare products, deltamethrin is typically used in low concentrations, ranging from 0.02% to 0.05%. Its molecular structure allows it to bind to keratin in hair shafts, providing residual protection against reinfestation. The compound works by disrupting the nervous system of parasites, leading to paralysis and death.

While effective, deltamethrin requires careful formulation to minimize potential side effects. It can cause mild skin irritation or sensitization in some individuals, particularly with prolonged or frequent use. Formulations often include soothing agents to counteract these effects. It's important to note that deltamethrin is not intended for regular use in haircare routines and should only be applied as directed for specific parasitic infestations. Professional guidance is recommended when considering products containing this ingredient to ensure proper application and safety.