hey, glad to see you, it is the first time that i see the word hitleap, so i am a little misunderstand about it, about you question, i am glad to help you, i have to say sorry i do not know.
Its a lie - the traffic from NataschaNixon is NOT adsense safe at all!I'm not affiliated nor am I endorsing the following service but give it a visit:
http://www.blackhatworld.com/blackhat-seo/misc/659447-flood-your-site-targeted-traffic-free-reviews.html
According to comment #3, all of the traffic is "AdSense Safe" and there are some good reviews so this might be a good option for you. In regards to HitLeap, I've never used them before so I couldn't give you an opinion on them.