Hey Lynn,
Having the Yotpo widgets on your site will not negatively affect your SEO and you won't be penalized by Google. The fact that you have product pages without reviews will in no way affect your ranking within Google. We have a strong partnership with Google and our rich snippet integration perfectly matches their guidelines so using Yotpo on your site will not affect your SEO.
If you have any other questions then please let me know or email support@yotpo.com.
