Rewrite (proofread and correct) a text in English

I have a text that was written by a non-native person and it turned out quite bad. The topic of the text is health and effective supplements and is about 11,900 words. I need someone to reword the unnatural phrases into a clear, natural and appealing text (and of course correct the grammar) Please bid only if you fulfill all the following conditions: - Your native language is English - You are good at proofreading and also have high writing skills - You have done such work before and have much experience with that.