Article Writing - Anti-Aging / Skin Care

I want 10 articles on the topic of anti-aging and skin care: - Each should be 500 words - I'll give you the topic and keyword for each article. I'll have some requirement on the keyword (i.e. appear appropriately within the article) - Please also write a 2 sentence summary for each article - These articles will be submitted to article directories, with best effect to drive people read along the article and best to click the links at the end of the article. So at the end of each article, there will be two links linking to my site - (Optional) If you have experience and can help to submit the articles to EzineArticles then it'll be great. But this is only an optional requirement, so just state in your bid whether you can do it or not. Along with your bid, please tell me whether you'll be using UK or US English. Price and previous work history are my main concern for this project. It is best if you can provide me previous work sample. There will be upcoming projects if this one is well done.