Bayer takes one female multivitamin a day from the United States, because this product is produced by Bayer Company in the United States. Headquartered in Pittsburgh, USA, Bayer is a world-renowned pharmaceutical and chemical company, and its various health care products and medicines are world-renowned. In the production process, Bayer will strictly control the quality of products to ensure the safety and effectiveness of products. In addition, there is a great demand for health care products in the American market, so Bayer positioned its products for sale in the American market.