using product description as meta description

Hi friends,
Please anybody tell me can I use my product description as meta description in eCommerce site , its effect on ranking?

Thanks

No. 28% only effect your ranking strategy. So, you need change meta description for your each product page. Sure 'll get some changes in SERP.

Example Product Meta Description

Target Search Term for the Page: amber earrings

Page Title: Amber Earrings

Meta Description: Amber Earrings, price: $17.50 US, category: amber jewelry, availability: in-stock

On-page you can call the product whatever you want, but tune the page for its target search terms.

<h1>Moonlight Amber Earrings</h1>

The amber earrings feature a stunning array of...

... tune for exact match on target search term

Meta description should not be too big, just summarized the description and insert keywords.