I glanced at it yesterday and personally, there's a whole lot you need to do before even considering
SEO work.
Just a few...
Spellcheck your site.
One product I looked at claimed a "Lifetime Guarantee" that is not published anywhere.
Some of your images are being called via http: and causing a security popup on your https: pages.
I stopped there. Getting visitors to your site via
SEO work isn't going to help you if once they get there they don't buy because the site does not instill/create confidence.
Dave