Marine collagen is a form of collagen that is derived from the skin, scales, and bones of fish. It is a type I collagen, which is the same type of collagen found in human skin and bones. 

Marine collagen has several advantages over other forms of collagen, including: 

High bioavailability:  

• Marine collagen is easily absorbed by the body, making it more bioavailable than other forms of collagen. 
• Sustainable sourcing: Marine collagen is a byproduct of the fish processing industry, which means it is a sustainable and environmentally friendly source of collagen. 
• Improved skin health: Marine collagen has been shown to improve skin hydration, elasticity, and thickness, which can help to reduce the signs of aging. 
• Joint health: Marine collagen has been shown to improve joint pain and mobility, making it a useful supplement for people with arthritis or other joint-related conditions. 

Overall, marine collagen is a highly bioavailable and sustainable source of collagen that offers several health benefits, including improved skin and joint health. 

Yes, marine collagen has been shown to improve hair and nail health. Collagen is an important component of hair and nails, and supplementing with marine collagen can help to strengthen and improve their condition. Marine collagen contains amino acids, such as glycine and proline, which are important building blocks for hair and nail proteins. Studies have shown that supplementing with marine collagen can lead to improvements in hair thickness, texture, and growth, as well as nail strength and health.