There are many different ways
you can request a product review.
Below is an example of a product review request letter.
Greetings,
My name is {insert your name}, and I am the
owner/author of {insert blog name and address}.
{insert a description of your blog here}.
I have read and heard much about {insert product
name} and am very interested in trying it because
{insert reason here}. {Describe why you would
be interested in trying the product}.
My readers are {provide information about your
readership} and I believe they would love enjoy the
information I could provide through a review of {insert
product name}. If you can provide a sample, I would be
delighted to review it for you on my blog!
My blog receive {insert number} pageviews per
day/month and {insert number} subscribe to my feed,
so I think a review on my site would be very beneficial to your
company.
At your request, I can let you preview the review before it is
published. This will allow for any questions or comments to be
answered by {insert company name}.
Thank you for your time. I hope we can work together!
{Insert Your Name}
{Insert Blog Title} {Insert Blog url}
{Insert Your Street Address}
{Insert Your City, State, Zip}
{Insert Your Phone Number}