​I have a list of 190K active email subscribers but sales are almost $0. What am I doing wrong?

We have an e-commerce store in the health & wellness niche with 6 products (supplements, skincare, DNA test & face masks) + 2 accessories. We have an email list of 270K of which we can message 190k. We send 2 newsletters a week + campaigns on the spot here and there. We have every possible flow imaginable set up to automate specific customer behaviour (abandoned cart, browsed product, etc…).

My problem is that we sell very little and cannot figure out how to change this. Our open rates are on average above 50% and click rates about 1-2%. We cannot convert the last bit it seems. Do you have any recommendations? Is it because there is no novelty or..?

EDIT:

sales are very low for the email marketing channel; our customers are super loyal but we are struggling with email marketing lately (it not used to be like this) this is the website: www.u-earth.store we have been in the space for about 5 years now