Like Google SEO, Amazon SEO is somewhat keyword driven. Before writing your product descriptions, you should take some time to decide which keywords you want to include. In order to choose the right keywords, you need to take the time to think about the words and phrases that people might think of when searching for products.
In order to determine which keywords to include, start by checking the homepage. This is where the most popular items for each category appear. Take the time to read the employee data descriptions of some top-selling products in your category, and you can get a better idea of what keywords you should include in your product descriptions. Create a list of 10-20 of the best items in your category and carefully review their descriptions. This will give you a good idea of what you should include in yours.
Also try using different variations of long-tail keywords. For example, if you're selling "novelty toys," you might try other variations of that keyword, such as "novelty toys for kids" or "novelty toys for teens." Finally, you should update your descriptions regularly. Rather than just creating them and never revising them, if you're not getting the results you want, you should update your descriptions and change the keywords as needed. A/B testing is excellent in this regard.