4.8 Average Rating (45 reviews)

Marine Collagen Capsules

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

Marine Collagen Capsules

90 days 69,95 € 0,78 € per day

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

    The same peptide type – here in capsule form.

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.

Verified 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.”
Tetiana4 of 5 stars

12 weeks

Taking it becomes a habit.

“Ordering and delivery went quickly and smoothly! I cannot judge the effect yet, I have only been taking it a short time!”
Marina5 of 5 stars

13 weeks

The protocol is a fixed part of everyday life.

“Great product”
Alexandra5 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 contain approx. 3 g of collagen. The study used 5 g a day.

  3. C The duration

    The research determinesthe length of the protocol.

    The length of use follows the duration of clinical studies. That is why this protocol is set at 90 days.

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
1.25 g
0.04 g
Collagen hydrolysate
100 g
3 g
Amino acid profile

Alanine: 10,600

Arginine: 8,400

Aspartic acid: 5,400

Glutamic acid: 10,300

Glycine: 21,600

Histidine: 800

Isoleucine: 1,100

Leucine: 2,400

Lysine: 3,400

Hydroxylysine: 2,100

Methionine: 1,000

Phenylalanine: 2,100

Proline: 12,000

Hydroxyproline: 10,600

Serine: 3,300

Threonine: 2,600

Tyrosine: 200

Valine: 2,100

All values per 100 g

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.

Beauty 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.

Beauty Collagen
Multi Collagen Capsules Type I, II, III, V, X

Type I, II, III, V & X in one daily routine.

Multi Collagen

90 days · 6 capsules daily

Type I, II, III, V & X in one daily routine.

Best ifYou want all five collagen types in one routine.

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

  • Very good marine collagen. Top value for money. Very fast shipping.
    CordulaMarine Powder
  • This collagen is really great. I can recommend it.
    galMarine Powder
  • Great!
    NatalieMarine Capsules
  • A great product, I can highly recommend it … Thank you!
    TatjanaMarine Powder

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

Where fish collagen comes from, 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 source and collagen type.

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

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.

How do I take the collagen?

Powder:
Stir the stated daily amount into a drink. The powder is unflavoured and soluble, so it fits easily into your daily routine.

Capsules:
Take the recommended daily amount with enough liquid.

What can I expect from the protocol?

A fixed daily serving, a clearly defined period and bioactive collagen peptides that have been studied in clinical trials. You can read how these studies were designed in the 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?

Clinical studies on collagen peptides examine intake over several weeks to several months. 90 days is a clearly defined period within this range.

Our collagen protocols are based on the intake periods examined in clinical studies and combine them with a defined daily serving.

The duration is therefore a fixed part of the protocol – alongside the right product and the defined daily serving.

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.

Taken every day, with your goal in mind.

Start your protocol