Marine Collagen: What is it and what are its benefits

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Beauty and health is a number one priority for many women and men, and with so many beauty supplements out there it can be difficult to distinguish between the good and the trendy ones. Marine Collagen is the newest beauty product on the market making its way to the top of the ‘must haves’ products. Collagen is a protein naturally produced in the body but as we age, that production slows down. Therefore, we may require a collagen supplement to support our bones, skin, hair and nails.

What is Marine Collagen?

There are about 16 types of collagen but 80-90% of collagen in the body is a type 1,2 or 3 making Marine Collagen the easiest to absorb as it is type 1 [1]. Marine collagen is made from collagen peptides found in fish and shellfish. These peptides are simply proteins found in fish that have incredible nutritional and physiological properties.

What is Marine Collagen good for?

It is most helpful in protecting, strengthening and improving bone and teeth density, joints, skin elasticity, hair and nails as well as reduce and delay onset of wrinkles.

Which is better Marine collagen or bovine?

Bovine collagen contains both type 1 and type 3 collagen. Type 1 is crucial for skin, hair and nails whereas type 3 mostly supports the digestive system. In addition, bovine collagen is a little cheaper than Marine but the ideal choice is actually Marine Collagen. It is much easier for digestion and faster absorbed by the body which makes it a perfect choice for anyone looking for a quick fix. This collagen is also environmentally friendly as it derives from parts of fish that normally go to waste. So if you care about our beautiful planet then a great choice is Marine Collagen.

Amazon features the most popular collagen products. You can purchase it in a form of capsules or powder. This marine collagen in a form of capsules is great as it also contains vitamin C and E which improves the natural production of collagen. But there are also supplements in a powdered form one which is preferable as it can be mixed to meals and shakes. However, if you’d like to take collagen to improve digestion then Bovine collagen is a better choice. A popular Bovine hydrolysed collagen can be bought on Amazon here. However, our favourite is the 100% pure and unflavoured, hydrolysed collagen with a resealable pouch, you can purchase it here.

Evidence-based benefits of Marine Collagen

beautiful natural skin

1. Improves bone strength and density

Fish collagen has shown to increase not only the body’s natural collagen production but also improve the absorption of calcium. Calcium is a vital mineral for bone and teeth health. A study has shown that the collagen peptides also contain anti-inflammatory properties. This may be particularly helpful for people with osteoarthritis [2] [3].

2. May improve skin with anti-ageing properties

Marine collagen is directly involved in the structure of skin, hair and nails. It helps cells to renew and repair naturally. Studies show that people who supplement with fish collagen find their skin feeling fresh, moisturised, more elastic and rejuvenated with less visibility of wrinkles [4] [5] [6].

3. May improve wound healing and reduce visibility of scars

As mentioned above, type 1 collagen is vital for the health and vitality of skin. Therefore, any skin problems like scars, rashes or burns can be dealt with using Marine Collagen. The peptides may also speed up the process of healing as it helps to regenerate and restructure the skin [7] [8].

4. May regulate blood sugar levels

Research on whether or not fish collagen can regulate blood sugar levels is still under investigation. However, early research suggests that it may be helpful for regulating sugar levels in people with type 2 diabetes [9] [10].

5. Reduces inflammation to reduce joint pain

Studies show that Collagen reduces the risk of joint problems. It helps joints to move more swiftly as it covers them with its gel-like form. This may be particularly helpful to athletes and elderly [11][12].

Side effects

Side effects of taking collagen include heartburn and bad taste in the mouth.

Moreover, if you are pregnant or breastfeeding then speak to your doctor prior to taking collagen. There have been no studies looking into the safety of this kind of supplementation on the baby.

Some people have reported digestive problems like an upset stomach and constipation as well as headaches and breakouts. This may occur if a person already produces enough collagen or simply isn’t used to supplements. If you experience any side effects then you should speak to your GP or lower your dosage. You can gradually increase the dosage to help the body to adapt. This will help to reduce side effects.

If you are looking to take any sort of supplements, it is always recommended to speak to a doctor.


In summary, Marine collagen is the best type of collagen to take for skin, hair and nails. It is the easiest to absorb and directly involved in skin formation and rejuvenation. If you want to improve skin, hair and nails then this may be a great product for you. It is widely available for purchase online, and you can find some great products on Amazon, either in a capsule or powder form.

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