SEO friendly text for web site

Num. of words: 300
Website url: www.backbliss.com
Information for the blog/website: I sell lotion applicators to help people get creams and lotions to the middle of their backs.
Industry: Lifestyle/Travel
Num. of web pages: 7
Description of every page: I have identified seven areas to target my product towards Medical, Mobility, Sun Tanning, Self Tan, Body Care, Black Skin & Men and I want unique text written for each of the above categories but also including some pre identified keywords.
Tone: Informal/Casual
Outline & Structure: The text needs to be SEO friendly and include terms that each particular category are familiar with (I can supply key words and terms).
The structure should cover the reasons why people need the product, I understand their challenges, how this affects their live
What happens if they don't use my product to help themselves
How they feel if they do use my product and what benefits it brings them.
Also a short list of of the products features
Call to action
Extra notes: It is very important that as each page is about essentially the same product that each page is totally unique with no duplicated text.

I tried writing these pages myself but basically copied and pasted the same page over each time just changing a few sentences here and there. (Can make these available) I have been told that having any duplicate text within the web site is a completely no-no with Google, so I have removed the pages immediately before I get penalised. I would like to get these pages re written as soon as possible.