Don't you love those articles that on first glance seem like "objective" news, with quotes from people only to later have claims and have a postscript this is paid content. This is after reading an article in the Canadian national post. I suppose the 97 to 100% cure rate or the phrase "super lice" in the article should've given it away. However, I have not tried the product and cannot say anything bad about it. In school I learned about one product that the French ban fearing toxicity.

Its silicone solution does the job so thoroughly that there is no risk of a recurring infestation, the company says.

"Even super lice do not develop immunity to the dimeticone-based solution in NYDA."

http://www.nationalpost.com/m/search/blog.html?b=news.nationalpost.com/life/secret-to-getting-rid-of-head-lice-kill-their-eggs&q=pharmacist

 This content was produced by Postmedia Works on behalf of Pediapharm for commercial purposes. Postmedia’s editorial departments had no involvement in the creation of this content. Its silicone solution does the job so thoroughly that there is no risk of a recurring infestation, the company says.