There are many different types of collagen on the market making it confusing on where to begin. Type I, II or III - is there really a difference? Let us break it down for you.

In our bodies, there are numerous types of collagen. Over 90% of our bodies collagen consists of types I and III. Type I is by far the most dominant, followed by type III. You will also hear mention of type II collagen. Type II collagen is found in cartilage making it a valuable contributor to joint health. So where do you get the different types of collagen from? It all depends on the source of collagen. Sproos sources its premium collagen from marine (fish), grass-fed (bovine) and chicken bone broth sources to ensure you can access the collagen that is the best fit for you.


As the name suggests, marine collagen is sourced from fish. It comes from the parts of the fish (scales and skin) that would usually be discarded during processing. Marine collagen is a source of type I collagen. Type I is the most plentiful collagen in our bodies. It can be found in our skin, tendons, bones, teeth, ligaments and connective tissues.

Collagen is often associated with skin health and rightly so! Type I collagen is the main component of our skin and is a key building block for maintaining its elasticity and firmness. That's why marine collagen has long been touted in the cosmetic industry for its skin enhancing benefits. Marine collagen is slightly more expensive than other types of collagen, but it has the greatest bioavailability. Gram for gram, marine collagen will deliver the greatest impact.


Grass-fed collagen comes the hides of cattle. It is also known as "bovine collagen". Bovine collagen is an excellent source of collagen types I and III. Type I collagen is the most dominant type of collagen in the body and type III is found in our muscles, digestive system, blood vessels and skin. This makes grass-fed collagen great for all-round body health and recovery from injuries.


Chicken bone broth collagen, of course, comes from chickens. Chicken bone broth collagen is a great source of type II collagen. Type II collagen is present in our bodies in much smaller amounts than types I and III. Type II is found in our cartilage, making it a valuable contributor to joint health.

The Bottom Line

To your body, collagen is collagen. What matters most is making collagen part of your daily routine. So when it comes to what collagen to buy, it boils down to personal choice and your main motivation for taking collagen. If you don't eat meat or have a sensitivity to fish, the choice is easy. Beyond that, if you want to improve your skin, hair and nail health, then you should opt for marine collagen, hands down. If your goal is to support your overall body health and recovery, then grass-fed collagen is a great option for you. If you want the full spectrum benefits from all three main types of collagen then a multi-collagen blend like our Performance Multi-Collagen is your winner.

Back to blogs

Leave a comment