lice preventative

Common ingredients include essential oils such as peppermint, tea tree, rosemary, lavender, citronella and lemongrass. Some formulas also list other ingredients like sodium chloride and keratin.

Many treatment kits include a fine-tooth or professional lice-removal comb to help remove dead lice and nits after treatment.

Minimum ages vary by product. Some list minimums as young as 6 months, many specify 1 or 2 years, and others list 6 years as the minimum.

Timing varies by product: some shampoos and lotions list about a 10-minute treatment to kill lice and eggs, sprays are described as killing on contact or are applied and allowed to air dry, and some listings do not specify a treatment time.

Common warnings include avoiding eye contact, keeping products out of reach of children, observing minimum-age restrictions (for example, not for children under certain ages), and consulting a doctor if pregnant or nursing.

Common scents and essential oils used include peppermint, lavender, rosemary, tea tree, citronella and lemongrass.