Sharks have been living on the earth for many years, and they can survive the Holocaust without extinction. Therefore, they have attracted the attention of the world's scientific community. Dr. williamlane, a famous American biologist, published an academic work on "sharks don't get cancer", which was translated into 15 languages and published. Germany and other relevant research examples prove that Dr. lanen's theory and practice have great persuasiveness. Dr. lan'en's theory has triggered an upsurge of countries all over the world competing to develop shark cartilage products.

Experiments have proved that shark bone chondroitin sulfate can activate human connective tissue, activate cells, delay aging and improve body immunity. Specific explanations are as follows:

1. activate the production of antibodies in the body, activate lymphoid macrophages, enhance immunity and delay aging.

2. reduce joint inflammation and relieve pain, such as osteoarthritis, rheumatoid arthritis, hyperosteogeny, lumbar disc herniation, etc.

3. activate human connective tissue and cells, maintain and repair cartilage tissue, and prevent degradation of articular cartilage.

4. supplement calcium, prevent osteoporosis, and effectively improve middle-aged and elderly low back pain, arthritis, periarthritis of shoulder, etc.

5. maintain corneal transparency, maintain the normal function of lens and cornea, and improve cataract, presbyopia and visual impairment.