The most effective route is likely to try get seller support to change it rather than through submitting buyer complaints and the like, which don't have as direct an avenue to change detail pages.
(If I was home I'd this, but...) Someone with a seller account can add the ASIN to their inventory, and submit a change to the product description. Then contact Amazon support by phone so you can be sure you are dealing with a competent English speaker, and explain the issue. This description is likely not being submitted by the brand owner so the catalog team will have the power to override the current winning contribution and switch it the catalog team's submission.