You can feed your Bichon Frize some carrots, egg yolks, salmon, and kelp powder regularly. You can also give your Bichon Frize some lecithin to help prevent skin diseases and make the hair look better. You can also choose a hair-beautifying dog food for your Bichon Frize. The ingredients should contain deep-sea fish oil, which is beneficial to the smoothness of the dog's hair.

In addition to diet, you can also make the Bichon Frize's hair whiter from the following aspects:

1. Parents can also groom their dogs more in their daily lives. This can effectively promote blood circulation in the dog's body and further promote hair growth.

2. It is best to bathe your Bichon Frize once a week, use a dog-specific shower gel, blow dry immediately after washing, and comb while blowing, so that the hair will look good.
3. If you want to have better-looking hair than a bear, regular deworming is necessary. Parasites will erode the dog's nutrition. Without nutrition, the Bichon Frize's hair will become rough, rough and ugly. Therefore, if you want to have whiter and better-looking hair than a bear, you must deworm your dog regularly.

4. Sunbathing is also a very good method. Sunlight can actually promote the absorption of nutrients in the dog's body. Don't be too comfortable while strolling under the warm sunshine.