What is the recommended Type Scale for E-commerce sites?

I'm a designer, working on a project to redesign an E-commerce site.

To improve readability, I would like to increase the font size as well as white space etc.

I would like to use a Type scale to do this, so the scale between H1-Body feels natural.

I'm currently using the 'Major Third' but I was wondering if anyone could shed some light on the most common used Type scale for E-commerce sites?