"despite the fact that everything we sell has been tested and approved for sale by both manufacturers and also all relevant regulatory bodies, we nevertheless l

"despite the fact that everything we sell has been tested and approved for sale by both manufacturers and also all relevant regulatory bodies, we nevertheless look out for the well-being of our customers by staging roll-outs of new products in small test markets, to measure both customer reactions and to monitor for any consumer complaints or health/safety concerns." sounds fine to me.