Bovine collagen comes from cow hide and provides Type I and III collagen, while marine collagen is sourced from fish skin and scales and is predominantly Type I. Marine collagen peptides are often marketed as having a smaller molecular size, which some brands suggest may make them easier for the body to absorb. Both are commonly used to support skin and joint health as part of a balanced diet, so the right choice often comes down to dietary preference.

A typical daily serving is often around 10g, usually one scoop, though this varies by brand and product. Bovine collagen powder is generally mixed into hot or cold drinks, coffee, smoothies or food. Always check the specific product's label for its recommended serving size.