How to choose a shampoo for lice? - briefly
Choose a shampoo that lists an FDA‑approved pediculicide (e.g., pyrethrin, permethrin) and is labeled safe for the intended age group and scalp use. Verify that the product includes clear application directions, avoids unnecessary harsh chemicals, and has documented efficacy against head lice.
How to choose a shampoo for lice? - in detail
Choosing an effective lice‑removing shampoo requires attention to active ingredients, formulation type, safety profile, and usage instructions.
First, verify that the product contains a proven pediculicide. Permethrin (1 %) and pyrethrin are the most common, while dimethicone works by suffocating lice without neurotoxic effects. Products with spinosad or malathion are alternatives for resistant infestations.
Second, examine the concentration and delivery system. A liquid shampoo that lathers easily ensures uniform coverage of hair and scalp. Cream‑based formulations may be preferable for thick or curly hair, as they remain in place longer.
Third, assess safety considerations. Look for FDA‑registered or EMA‑approved status, clear labeling of contraindications (e.g., infants under two months, known allergies), and absence of harsh surfactants that can irritate sensitive skin.
Fourth, review the recommended application protocol. Effective regimens typically involve:
- Wetting hair thoroughly.
- Applying the shampoo from roots to tips, ensuring full scalp contact.
- Leaving the product on for the specified duration (usually 5–10 minutes).
- Rinsing completely, then repeating the treatment after 7–10 days to target newly hatched lice.
Fifth, consider supplemental measures. A fine‑toothed nit comb used after each wash removes dead insects and eggs, improving overall efficacy.
Finally, evaluate cost and availability. Over‑the‑counter options are generally cheaper and accessible, while prescription‑only products may be necessary for resistant cases but require medical supervision.
By systematically checking these criteria—active ingredient, formulation, safety, usage directions, adjunct tools, and practicality—you can select a shampoo that maximizes lice eradication while minimizing adverse effects.