Best Collagen Supplements of 2021

To get into what makes BlueBiology’s Marine Collagen unique, we have to take a look at what collagen actually is:

“Collagen is the main structural protein in the extracellular space in the various connective tissues in animal bodies.”

Basically, collagen is the glue that holds your body together.

Whether it’s repairing damage to existing structures in your body, such as your knees recovering from the daily wear of walking and running, or promoting the growth of healthy skin and hair – collagen is the fundamental building block that your body uses.

There are actually 28 different types of collagen in your body, but the most important variation is Type I Collagen.

Type I collagen is stronger than steel by weight and the most widely used collagen in your body. It makes up around 80% of the outer layer of your skin and is used in nearly all of your body’s rebuilding processes.

One of the reasons which led to BlueBiology’s Marine Collagen ranking #1 was that it contains exclusively Type I collagen.

While it may seem like a good idea to include as many different types of collagen as possible, a high dose of Type I collagen has been proven to be more effective for two reasons:

  1. Because Type I collagen is the most widely used collagen in the human body, we deplete our Type I stores much more quickly.
  2. When given a sufficiently high dose of a single type of collagen, the human body recognizes that it is ‘overstocked’ and triggers the ‘wound care response’ process to make use of the excess collagen. This causes your body to immediately begin repairing or replacing old or damaged cells throughout your body.

For these two reasons, exclusively Type I collagen supplements regularly yield much faster and more profound results.

Another important factor in the potency of a collagen supplement is the source of the collagen.

Although all living things store collagen, there are three creatures which store collagen in much higher concentrations: cows, pigs, and fish.

This is why most collagen supplements you find will be labeled as being bovine (cow), porcine (pig), or marine (fish) sourced.

While the amount of collagen, per gram, is generally the same among these sources, Marine collagen is much more effective as a supplement for two major reasons:

  1. Bovine and Porcine sourced collagen contains both Type I and Type III collagen, whereas Marine sourced collagen only contains versatile Type I collagen.
  2. Marine collagen has a much smaller particle size, which allows it to be absorbed up to 1.5 times faster than any other source of collagen.

This means that marine collagen is uniquely suited for use as a dietary supplement.

#1 BlueBiology Marine Collagen

What makes BlueBiology Marine Collagen the best?

The reasons why BlueBiology’s Marine Collagen consistently outperforms other marine collagen supplements are:

  1. BlueBiology’s Marine Collagen contains no additives, dyes, or fillers.
  2. There are 11,000 mg of Type I Marine Collagen per scoop, 10% more than the base effective daily amount.
  3. Most importantly, BlueBiology’s Marine Collagen is hydrolysed (see below).

The process of Hydrolysis is perhaps the most decisive factor in determining the quality and potency of a collagen supplement, and the reason why collagen supplements have only recently become so widely used. This is also the area in which BlueBiology really makes their mark.

Collagen Hydrolysis is the process of adding an H2O molecule to collagen, splitting the collagen into very small particles which your body can absorb much more efficiently. How small the resulting collagen particles are is completely dependant on the capability and precision of the equipment used and the engineers operating the equipment. This is the reason why all collagen supplements are NOT equal.

We’ve received overwhelmingly positive feedback from BlueBiology’s customers, so much that many of our staff members ordered it (myself included) and swear by it. But, of course, we would love to hear from you as well!

You can order BlueBiology Marine Collagen through their website, at

Please let us know what you think!

#2 Vitadirect Premium Grade Collagen Hydrolysate

VitaDirect’s Premium Grade Collagen Hydrolysate is a very popular collagen powder. Designed to be mixed into any liquid from coffee to soup, this collagen supplement is easily accessible for everyone and priced very fairly. Sourced from pasture-raised, grass fed bovine, you can depend on this supplement to be free from unnatural chemicals.

Vitadirect sells through, which means faster and more efficient shipping as well as possible bundling discounts. They have a great reputation as a company, although their supplement line is a little limited.


  • Powder that can be mixed into any liquid
  • 11 grams of collagen per serving
  • Contains 18 different amino acids

What’s Special?

  • Hydrolyzed
  • Type 1 and 3 (not type 2)
  • Sourced from Grass-fed cattle
  • Include vitamin C and Hyaluronic Acid



#3 Perfotek Hydrolyzed Collagen

If you’re looking for a collagen supplement that’s designed to renew youthful energy, restore your skin, hair, and nails, and support your joints as you grow older, you may want to look into Perfotek Hydrolyzed Collagen. This 11 gram-per-serving collagen supplement offers everything we expect from a collagen and more, including easy-to-mix powder; pasture-raise, grass fed bovine sourcing; and hydrolyzation for ready absorption.

One of the more cost effective brands available, this can be purchased online at either or their brand website. Perfotek is a lesser known supplement brand, so as always, be sure to check their return policy so you know if it fits your needs. 


  • Powder that can be mixed into any liquid
  • 11 grams of collagen per serving
  • Kosher

What’s Special?

  • Benefits for joints and cartilage, hair, skin, and nails
  • Revive and renew
  • From Pasture-raised, grass-fed cattle


100% Natural Hydrolyzed Collagen Peptides



#4 Sport Research Collagen Peptides

Sports Research is one of our favorite sports and fitness nutrition brands. We were particularly happy to see that they have formulated a collagen supplement. Too often collagens are designed only as preventive care for aging, and it’s important for people of all ages to remember to take good care of their skin and joints. This supplement has everything you want to see in collagen from hydrolyzation to 11 grams per serving and absolutely no binders and emulsifiers. Sourced from pasture raised, grass fed bovine, you can rely on Sports Research for a clean supplement.

Sports Research has also gone the extra mile in offer more specific suggestions for the type of liquid to use as your mixer, pointing out that collagen may clump in colder liquids. We appreciate this level of customer support, and give these our good-to-go thumbs up.


  • Powder that can be mixed into any liquid, but works best in warm or hot liquid
  • 11 grams of collagen per serving
  • Grass fed, pasture raised

What’s Special? 

  • Designed for Sports Nutrition
  • Supports Joint and Skin Health
  • Type 1 & 3 Collagen 




Grass-fed, pasture-raised, bovine hide collagen peptides.

Label information:

#5 G-Biotics Natural Marine Collagen Complex

G-Biotics Natural Marine Collagen Complex is a little different from the other collagens we have reviewed here in that it comes in capsule form and the company seems to be based in the UK. Never fear, they are both easy-to-swallow and available on for US customers. 

This supplement is specifically formulated to promote healthy skin, and gears all of it’s ingredients towards this goal. It includes hyaluronic acid to help retain moisture, Vitamin C for skin health and Vitamin E for the combined benefits of skin health and aiding absorption. This supplement only include Type 1 collagen, from a marine source. This emphasizes the skin-health focus of this supplement, as without other types of collagen it won’t double as a joint or bone health supplement.

If you’re looking for an easy way to boost the health of your skin, G-Biotics Natural Marine Collagen Complex may be right for you.


  • Easy-to-swallow capsules
  • Added vitamins for better results
  • Marine-sourced

What’s Special?

  • Supports skin health, helps protect from UV damage, helps retain moisture, and may reverse some effects of aging
  • Include hyaluronic acid to help retain moisture
  • Offers bundle and shipment incentives




Marine Collagen Prep (Hydrolyzed Marine Collagen Type 1, Citric Acid, Natural Flavourings, Maltodextrin) (Fish, Molluscs, Crustaceans), Capsule Shell: Hydroxy Propyl Methyl Cellulose, Hyaluronic Acid, Vitamin C Prep (Ascorbic Acid, Hydroxy Propyl Methyl Cellulose), Vitamin E (D-Alpha Tocopherol Succinate).