Unfortunately, there is no ‘correct’ way to dispose of products containing microplastic ingredients. We always recommend two options: the first is to send the product back to the manufacturer and describe why you decided not to use it and that you will stop buying this product as long as it includes microplastics; the second option would be to dispose of your products in the regular house-trash. Please note that it will be taken to a landfill or will be incinerated, neither of which are environmentally friendly options.  
 
Check out our ZERO products lists to see which products are free of microplastics!