May 29, 2026

Which Collagen Is Your Type?

You’ve probably heard of collagen—it’s listed as an ingredient in skincare products, smoothies, and even bone broth. But what’s all the hype about? Well, there's a good reason everyone's obsessed. Simply put, collagen is basically your body's scaffolding; it’s the protein that keeps your bones, skin, hair, and nails in top shape.

So, why is it so popular? Here's where it gets interesting. In the supplement world, collagen isn't just collagen. Scientists have found 28 different types so far, each with its own unique role. But don’t stress, you absolutely don't need to know all 28. But getting familiar with the main ones can help you pick the right collagen supplement to meet your wellness goals.

Let’s break it down.

Yes, there’s a lot of collagen out there, but most of us only really need to know about a few types. Why? Because Type I makes up around 90% of the collagen in your body, and other types—like II, III, V, and X—fill in the gaps to cover nearly all the benefits you’d want, from support for hair, skin, and nails to joints*.

Here’s a quick guide on each type of collagen .

Collagen Type I

The heavy hitter. Type I is the most common type of collagen and is found in your skin, hair, and nails. In supplements, you’ll usually see it sourced from bovine (cow) or marine (fish) sources.

Collagen Type II

Type II is all about cartilage. If you’re looking for joint support, this is the one for you.* It’s usually sourced from chicken.

Collagen Type III

Often paired with Type I, Type III is found in skin, muscles, and blood vessels. Together, Types I and III make up a lot of your connective tissue, meaning they’re often paired together in a lot of collagen supplements.

Collagen Type V

A little less common but still important. Type V is found in the skin and the cornea of your eye. In supplements, it often comes from eggshell membranes.

Collagen Type X

If you need support for bone and cartilage formation, Type X is your go-to.* You’ll see it in multi-collagen complexes alongside Types I–III and V.

Now that we’ve covered the different types of collagen, let’s talk about where they come from. It’s important to know because your choice of collagen will depend on your lifestyle and wellness goals.

Marine Collagen

Marine collagen is sourced from fish, specifically the skin and scales. It’s rich in Type I, making it a great choice if your focus is on improving your hair, skin, and nails*. It’s also pescatarian-friendly, which is a big plus if you don’t eat meat!

Bovine Collagen

Made from cows, bovine collagen naturally contains Types I and III. That makes it versatile, supporting everything from skin to joints*. It also happens to be one of the most common sources of collagen you’ll find in supplements.

Chicken Collagen

Chicken collagen is usually where Type II comes from. It’s more specialized, showing up in supplements focused on joint health. Eggshell membrane collagen also contributes Types V and X, rounding out multi-collagen products that promise broader coverage.

The short answer? Yes! Sports Research collagen supplements are designed to be easily absorbed in your body.* If you’re curious, here’s how it works:

Your body has to break down collagen before it can actually use it. That's why our supplements come as hydrolyzed peptides, which are already broken into small pieces for easier digestion.*
Those little fragments? They're like messengers telling your body “hey, we need more collagen over here!”. So you're not just getting the collagen you ingested—you're kickstarting your own production too.*
More collagen floating around = better support for everything from your skin to your hair, joints, and nails*.

And there are studies to back this all up.

In one trial, adults taking daily collagen peptides showed measurable improvements in key skin measures compared with placebo. The same goes for nails—a study found that people taking specific collagen peptides saw improvements in nail growth and brittleness.

And then there are joints. In a study on active young adults, collagen supplementation helped with activity-related joint pain. For hair, the research is newer but promising. A recent trial of hydrolyzed collagen and vitamin C together reported positive scalp and hair outcomes.

Collagen isn’t a quick fix, but these studies do suggest that consistent use supports your body’s natural systems—helping you feel your best over time*.

So here’s what we’re working with. At Sports Research, we’ve developed several different collagen products to fit different lifestyles. Whether you like the convenience of capsules or prefer mixing your collagen into your morning smoothie, there's something in the lineup for everyone.

Sports Research Collagen Peptides

Classic unflavored collagen with Types I and III from bovine. Dissolves easily in anything—coffee, smoothies, even your morning oatmeal. Mix 1 scoop into your drink or food 1–2 times daily, or as recommended by a qualified healthcare professional.

Sports Research Collagen Peptides Flavored

All the benefits of the classic peptides (Types I and III) with flavor options like chocolate or vanilla. A good fit if you want your collagen to double as a sweet treat! Mix 1 scoop into your drink or food 1–2 times daily, or as recommended by a qualified healthcare professional.

Sports Research Organic Collagen Peptides

Certified USDA Organic and made from grass-fed bovine. Same Types I & III as the original peptides, but also certified USDA Organic, you can trust you’re getting the best. Mix 1 scoop into your favorite drink 1–2 times daily, or as recommended by a qualified healthcare professional.

Sports Research Multi Collagen Powder

The all-in-one powder with 5 types of collagen (I, II, III, V, and X) for people who want everything covered. Mix 1 scoop into your post-workout shake or morning coffee once daily, or as recommended by a qualified healthcare professional.

Sports Research Marine Collagen Peptides

Sourced from wild-caught fish, rich in Types I and III. A pescatarian-friendly option that supports hair, skin, and nails*. Unflavored and easy to mix, 1 scoop into your favorite beverage or meal once daily, or as recommended by a qualified healthcare professional.

Sports Research Marine Collagen Peptides Dark Chocolate

The same marine collagen profile with a dark chocolate twist. This pescatarian option actually tastes like a treat—perfect for making collagen hot cocoa or for adding sweetness to smoothies. Take 1 scoop once daily or as recommended by a qualified healthcare professional.