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Does mayonnaise kill lice eggs?

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Active, live lice are crawling around causing itch and irritation; Dormant eggs are waiting to hatch. These two stages require different approaches in order to treat lice effectively, and timing is critical. If you take too long with one, you neglect the other and end up having to start all over. read more

It will not, however, kill any live lice eggs. As mayonnaise contains a lot of oil, this is why it can be used against head lice just as olive oil or vegetable oil. Of course, there are no scientific studies that prove the effectiveness of mayonnaise as a treatment for head lice. read more

However, the second problem with the mayonnaise is that, even if it kills head lice, it doesn’t kill lice eggs (nits). Eggs don’t breath and cannot be suffocated. Most lice experts will tell you that killing the eggs is the most challenging part of head-lice treatment. read more

Lice Head: Mature head lice are approximately the size of a sesame seed, don't hop or jump and lay eggs called nits that stick to the hair shaft. Main symptoms are severe itching especially at night when they feed. read more

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