4.8 Average Rating (45 reviews)

Marine Collagen Capsules

Patented peptides · Fish collagen type I · Ideal on the go

Marine Collagen Capsules
The 90-day protocol: collagen type I – month 1 start daily, month 2 keep going, month 3 routine established
Collagen type I from fish, neutral taste
The routine: 6 capsules a day – 90-day protocol: 3 jars of 30 days
From collagen to bioactive peptides: type I from fish, split by enzymes
Quality standard: one study with 76 women; no flavourings, sweeteners or colourings; filled in Germany
Kollagen Institut marine protocol: collagen type I from fish

In stock · Delivery in 1–3 working days

  • Made in Germany
  • Free shipping from €50

What it is

Marine Collagen Capsules — fish collagen in capsule form

Marine collagen as capsules: hydrolysed fish collagen with bioactive type I collagen peptides – practical on the go and for a fixed daily routine.

  • Pure fish collagen

    Collagen hydrolysate from fish – no added flavourings, sweeteners or colours. Capsule shell made of cellulose (HPMC).

  • Bioactive marine peptides

    Hydrolysed type I collagen peptides from fish.

  • Ideal on the go

    180 capsules per jar – for 30 days at 6 capsules daily.

  • Clinically studied peptides

    One study with 76 women over 8 weeks – randomised and placebo-controlled.

Why it matters

Marine collagen or bovine collagen?

Fish collagen provides type I – an alternative for anyone who doesn’t want beef.

… The capsules are pleasant to take and the customer service has been top so far too.

PaulaMarine Capsules, December 2024

What to expect

A collagen protocol takes time.The research took time. So does building a routine.

Collagen peptide studies run for weeks or months. That is why a protocol needs one thing above all: consistency.

Clinical studies How long the studies ran

8
weeks

Studied over weeks

In a clinical study, 76 women aged 50 to 70 took this peptide type daily for 8 weeks.

12
weeks

Studied over months

Randomised and placebo-controlled: the fish collagen study ran for 12 weeks – 8 weeks of intake, 4 weeks of follow-up.

13
weeks

Our protocol

90 days of daily intake – longer than in the study. We have no longer studies of this peptide type from fish.

Reviews What customers describe, in their own words

8 weeks

The daily routine takes shape.

“The capsules are easy to take (in terms of size), … the delivery was very fast and the ordering process itself very simple.”
Tetiana · Marine Capsules4 of 5 stars

12 weeks

Taking it becomes a habit.

“… I am very satisfied and taking the capsules is also much easier for me than powder.”
Kirstin · Marine Capsules5 of 5 stars

13 weeks

The protocol is a fixed part of everyday life.

“… The pills are relatively large but easy to swallow. …”
Moosberg · Marine Capsules5 of 5 stars

The study on this peptide type: 8 weeks of intake, 4 weeks of follow-up.

That's why the Kollagen Institut protocol is designed for 90 days.

Choose your protocol

Based on the duration of clinical studies on collagen peptides.

The Kollagen Institut method

The right product. The right dose. The right duration.

  1. A Your goal

    A protocol foryour daily routine.

    Source and collagen type are fixed: type I collagen peptides from fish.

  2. B Your daily dose

    A fixeddaily serving.

    6 capsules a day – approx. 3 g of type I collagen peptides from fish. 180 capsules per jar, exactly 30 daily servings.

  3. C The duration

    The duration: 90 days, three jars.the length of the protocol.

    The study ran for 8 weeks. Our protocol is set longer, at 90 days – three jars of 180 capsules.

Your protocol: Marine Collagen Capsules

Marine collagen peptides. Hydrolysed, from fish.

6 capsules daily 90 days

How our collagen peptides are made

From collagen to bioactive peptides.

Fish collagen is split by enzymes into short, easily soluble peptides. The result: specific bioactive type I collagen peptides with a defined peptide profile – examined in a clinical study.
Step 1The raw material.

Fish collagen is the starting point.

Step 2Split by enzymes.

Enzymes break the long collagen chains down into short, easily soluble peptides.

Step 3A defined peptide profile.

Specific bioactive collagen peptides, type I – examined in a clinical study.

Step 1Step 2Step 3

From fish collagen to a defined peptide profile.

Made in Germany.

Clinical studies

Research, disclosed.

Studied: the peptide type in this product – one study, 76 women aged 50 to 70. Randomised and placebo-controlled – 5 g a day for 8 weeks, then 4 weeks without intake.

76

women took part

1

study, randomised and placebo-controlled

8

weeks of intake + 4 weeks of follow-up

2020

published in Nutrafoods

AUTHORS FROM

Kiel

Marine Collagen Capsules

Clinically studied peptides. A defined daily serving.

Every study with design, number of participants and original source.

Study details

The study was carried out with collagen peptides from fish – the same peptide type as in this product. Peer-reviewed, published in 2020 in the journal Nutrafoods. We have no further studies on this peptide type.

Product details

Recommended use

Stir 5 g into 250 ml of water, juice or a drink of your choice once a day.

6 capsules daily with a meal and enough water.

Ingredients

Collagen hydrolysate ( fish) and Capsule shell: hydroxypropyl methylcellulose (HPMC, transparent, vegan)

Allergens are marked in bold (EU Food Information Regulation, Annex II).

Nutritional values
Nutrition
per 100 g capsule contents
per daily serving
(6 capsules)
Energy
1581 kJ / 372 kcal
47 kJ / 11 kcal
Fat
0 g
0 g
of which saturates
0 g
0 g
Carbohydrate
0 g
0 g
of which sugars
0 g
0 g
Protein
93 g
2.8 g
Salt
0.5 g
0.02 g
Collagen hydrolysate
100 g
3 g
Amino acid profile
Alanine
10,600 mg
Arginine
8,400 mg
Aspartic acid
5,400 mg
Glutamic acid
10,300 mg
Glycine
21,600 mg
Histidine
800 mg
Isoleucine
1,100 mg
Leucine
2,400 mg
Lysine
3,400 mg
Hydroxylysine
2,100 mg
Methionine
1,000 mg
Phenylalanine
2,100 mg
Proline
12,000 mg
Hydroxyproline
10,600 mg
Serine
3,300 mg
Threonine
2,600 mg
Tyrosine
200 mg
Valine
2,100 mg

All values per 100 g protein

Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the stated recommended daily intake. Keep out of the reach of young children.

Protocol guide

Which collagen protocol fits your goal?

Not all collagen is the same. That’s why every protocol starts with one question: what is your goal?

Marine Collagen Capsules

Current protocol

Marine Collagen

Type I from fish in one daily routine.

Best ifyou prefer collagen from fish.

Also available as Powder →
Hair, Skin, Nails Collagen Capsules

Types I and III from pork in one daily routine.

Skin · Hair · Nails Collagen

90 days · 6 capsules daily

Types I and III from pork in one daily routine.

Best ifyour focus is on skin, hair and nails.

Skin · Hair · Nails Collagen
Multi Collagen Capsules Type I, II, III, V, X

Types I, II, III, V and X from five sources.

Multi Collagen

90 days · 6 capsules daily

Types I, II, III, V and X from five sources.

Best ifyou want all five collagen types in one serving.

Multi Collagen

Prefer powder? Marine Collagen Powder →

Explore all 7 protocols

What customers say

How marine collagen fits into everyday life.

4.8/ 5

Based on 45 reviews

How we check reviews

We collect reviews through the Judge.me service. Reviews marked “Verified” could be matched to an order in our shop. For reviews without this mark, we cannot check whether the person bought or used the product. We show positive and negative reviews and do not change their text. Reviews of different pack sizes of the same product appear together. English and French versions are translated automatically; you can show the original on each review.

Most mentioned

  • … The capsules are easy to take (in terms of size), they have no taste …
    TetianaMarine Capsules
  • Fast delivery, good high-quality glass and capsules. Capsules pleasant to swallow. …
    JeannieMarine Capsules
  • … I much prefer capsules to powder because I always forget the powder. the capsules sit on my desk so I always think of them.
    TKNMarine Capsules
  • Ordering and delivery went quickly and smoothly! …
    MarinaMarine Capsules

All reviews

  • AndreaVerifiedJun 2026
    ★★★★★

    Fast delivery, good product

    The main reason for my order was to support my knee joint a little – and after only a few days I noticed that the complaints were lessening, and lastingly so. The delivery arrived very quickly. Many thanks, happy to order again!

    Translated from German

  • SofiaVerifiedDec 2025
    ★★★★☆

    A good effect on the nails

    I have not been taking the Marine Collagen capsules very long, but I have already noticed a clear improvement in my nails – they have become stronger. With hair and skin I cannot detect any clear change so far. As I am still young and my skin had no problems, that is hard to judge. My hair has not grown faster so far, but I have also only been taking the collagen a short time. All in all the product makes a good impression, so I will keep taking it.

    Translated from German

  • IyadVerifiedNov 2025
    ★★★★★

    Marine Collagen Capsules – 100% pure

    Translated from German

  • AlexandraVerifiedNov 2025
    ★★★★★

    Great product

    Translated from German

  • KirstinVerifiedSep 2025
    ★★★★★

    great

    I have now been taking the fish collagen capsules for a year and I notice an improvement in my skin. Generally I have the feeling that the capsules help me keep my body healthy. I am very satisfied and taking the capsules is also much easier for me than powder.

    Translated from German

  • RasulVerifiedAug 2025
    ★★★★★

    3 x Marine Collagen Capsules – 100% pure

    Translated from German

Showing 1–6 of 45

25,000+ customers choose Kollagen Institut

Questions about marine collagen

What marine collagen is, how it differs from bovine collagen, and how to take it daily.

What is marine collagen?

Marine collagen is collagen from fish. It consists almost entirely of type I collagen.

In our products it comes in hydrolysed form: the collagen has been broken down enzymatically into smaller peptides. These peptides are rich in glycine, proline and hydroxyproline — the amino acids that make up the bulk of the collagen molecule.

Marine collagen or bovine collagen?

The two differ in their source – fish or beef.

Marine collagen is obtained from fish and consists almost entirely of type I. Our bovine collagen is type I as well.

Which one suits you is mainly a question of preference: anyone who would rather not consume beef chooses fish – unless they have a fish allergy.

Where does the fish collagen come from?

From the skin of warm-water fish. It is split enzymatically into short type I collagen peptides – with no beef or pork components. Every batch of the collagen raw material is tested before delivery.

How do I take the collagen?

Powder:
Stir 5 g – that is 2 teaspoons – once a day into 250 ml of water, juice or a drink of your choice; the same daily amount as in the study. Unflavoured and soluble, in your morning coffee too.

Capsules:
6 capsules a day with a meal and enough water – about 3 g in total, handy on the go. Prefer to follow the 5 g used in the study? Then the powder is the right choice for you – at the same price per day.

Powder or capsules: one jar lasts 30 days.

What can I expect from the protocol?

The same serving every day – 5 g of powder or 6 capsules – for 90 days, so three jars. And full transparency: this page shows how the ingredients in this product were studied – participants, study design, duration and original sources.

Why do you show studies instead of promises?

Because the decision should be yours. We disclose what was studied – with study design, number of participants and original source. We leave the judgement to you.

Why is the protocol designed for 90 days?

In the study on this peptide type, intake lasted 8 weeks. One jar lasts 30 days – only the 90-day protocol with three jars covers the full study period. That is why we recommend it to start.

Why bioactive peptides — and not just collagen?

“Collagen” alone does not tell you which specific peptides a product contains. Enzymatic hydrolysis splits collagen into smaller collagen peptides, producing peptides with different properties.

For our protocols we deliberately select specific bioactive collagen peptides, taking into account the peptides, doses and intake periods that have been studied.

This is how we link the choice of peptides to clinical studies – matched to each goal.

Type I collagen from fish. 6 capsules a day. 90 days.

Start your protocol