Marine collagen is hydrolysed type I and type III collagen from fish skin, broken into small peptides your body absorbs.
- Skin hydration improved within 6 weeks in a clinical study of fish collagen peptides in women aged 40 to 60.
- Wrinkles and elasticity improved within 12 weeks in the same study.
- 26 randomised trials with 1,721 participants found better skin hydration and elasticity with daily collagen.
of 106 women said their skin looked better after 8 weeks on our liquid marine collagen.
- 87%fewer fine lines and wrinkles
- 86%healthier hair
- 76%stronger nails
What is marine collagen?
Marine collagen is collagen taken from fish skin and hydrolysed, which means it is broken down into short chains called collagen peptides. It is rich in type I collagen, the same type that makes up 80% to 90% of the collagen in human skin, alongside type III, which sits next to it in young skin.1
Because the peptides are small, they dissolve completely in liquid, which makes marine collagen well suited to a ready-to-drink portion with nothing to stir and nothing to swallow whole.
assets/img/blog/mc-ingredient.webpWhy do women take marine collagen?
Women take marine collagen because skin makes less of its own collagen with age, the protein that keeps skin firm, plump and springy: from early adulthood the skin makes about 1.0% to 1.5% less of it every year,1 and the change speeds up later, with as much as 30% of skin collagen lost in the first five years after menopause.2
For that reason a daily collagen habit appeals to women from their thirties onward. You are giving your body a steady supply of the same peptides its own collagen is built from every day.
Does your body absorb marine collagen?
Yes, hydrolysed collagen is absorbed. When researchers gave volunteers hydrolysed collagen to drink, collagen peptides appeared in their blood and peaked within one to two hours.3 The peptides travel through the bloodstream to the skin, where collagen is made.
Native collagen is a large molecule of around 300,000 daltons, while the marine collagen in Core™ is hydrolysed down to a low molecular weight of about 1,500 daltons, roughly 200 times smaller, so every portion arrives in a form that is ready to be absorbed.10
What does marine collagen do for skin?
Studies of daily collagen in women recorded better skin hydration first and then smoother, firmer, more elastic skin, and skin is where the evidence is deepest.
Hydration up by week 6, wrinkles and elasticity by week 12
Women taking 1,000 mg of low-molecular-weight fish collagen peptide a day had significantly higher skin hydration than the placebo group after 6 weeks. By week 12, crow's-feet wrinkling and skin elasticity had improved significantly too.4
64 women aged 40 to 60 · randomised, double-blind, placebo-controlled
Wrinkle score down 35% on one side of the face
Women taking 10 g of hydrolysed fish collagen a day saw their wrinkle score fall 35% from baseline on the right side of the face, a 24% greater reduction than placebo.5
Women aged 45 to 60 · randomised, triple-blind, placebo-controlled
Better hydration and elasticity across 1,721 people
A 2023 analysis pooled 26 randomised controlled trials and found that oral collagen significantly improved both skin hydration and skin elasticity compared with placebo. The hydration effect was larger when collagen was taken for more than 8 weeks.7
26 randomised controlled trials · 1,721 participants
90 days: fewer wrinkles, more elasticity
A 2021 analysis of 19 double-blind trials, with participants who were about 95% women, concluded that 90 days of hydrolysed collagen reduced wrinkles and improved skin elasticity and hydration.8
19 randomised controlled trials · 1,125 participants aged 20 to 70
Skin after 12 weeks of daily collagen peptides
Change from the start of the study, collagen drink compared with placebo. 72 women aged 35 and over.
View as a table
| Measure | Collagen drink | Placebo |
|---|---|---|
| Skin hydration | +28.0% | +9.0% |
| Skin density | +24.8% | +6.8% |
| Wrinkle depth (roughness) | −26.8% | −6.4% |
Does marine collagen help hair and nails?
Women who take collagen consistently report healthier hair and stronger nails, and one 24-week study of daily collagen peptides measured faster nail growth and fewer broken nails. Hair and nails are built from protein.
- Nails: in a 24-week study of daily collagen peptides, nail growth rate rose 12% and the frequency of broken nails fell 42%. Eight in ten participants agreed their nails looked better.9
- Hair: in the 8-week trial of our liquid marine collagen, 86% of 106 women reported healthier hair.10
- Nails, again: in that same trial, 76% reported stronger nails.10
Core™ adds biotin and selenium to the same portion. Biotin contributes to the maintenance of normal hair and skin, and selenium to the maintenance of normal hair and nails.
8-week results: 106 women, before and after
Jadenmoor Core™ is made for us in Sweden by one of Europe's largest producers of liquid collagen, and our liquid marine collagen has been through two rounds of testing with women: an 8-week user trial with 106 women, and an 8-week clinical study with skin-imaging analysis.10
felt that the appearance of their skin improved.
reported more moisture and glow.
noticed a reduction in fine lines and wrinkles.
reported firmer skin.
reported healthier hair.
found it easy to include in their daily routine.
User trial of 106 women taking our liquid marine collagen daily for 8 weeks.10
Participants in the 8-week user trial of our liquid marine collagen, photographed before and after.
The clinical study: wrinkles and spots under skin imaging
In the clinical study, ten women took our liquid marine collagen daily for 8 weeks and had their skin analysed with imaging before and after. The results showed a visible reduction in multiple signs of skin ageing, including eye and forehead wrinkles, pigmentation, redness and spots, along with improved skin texture.10
Clinical study of 10 women after daily intake of our liquid marine collagen for 8 weeks.
What women say about marine collagen
Women describe plumper, more hydrated and more radiant skin, softer fine lines and better nails and hair, in the words of beauty writers who tested marine collagen and published what happened, and of verified buyers of our liquid marine collagen.
“And truthfully? My skin looks better than ever.”
A self-confessed sceptic, she took marine collagen every day for two months and found her skin plumper, healthier and noticeably more radiant.
Shannon LawlorBeauty editor, writing in Marie Claire UK11
“To my surprise, these worked.”
After around six months on 10,000 mg of marine collagen a day, she reported glowier, more even skin that held on to hydration for longer, and nails that were less brittle.
Charlotte BitmeadWriting in Stylist12
“My nails were the best I had ever had in my whole life.”
She started marine collagen after turning 40. Her skin looked more hydrated within the first month, fine lines had almost faded by month three, and by month six her hair felt thicker and fuller.
Charlotte DormonWriting in Hip & Healthy13
Independent first-person accounts of marine collagen, published by the outlets named. Each writer tested a marine collagen of her own choosing.
“I can really see the visible changes in my skin and nails.”
Check4YouVerified purchase · Amazon, Germany · 27 December 2023
“My skin looks great, with no fine lines. I'm 45 and will definitely keep using it.”
FrédériqueVerified purchase · Amazon, France · 18 May 2024
“The taste is amazing and it is sugar free! Love what it does to my hair, nails and skin.”
Suzanne H.Verified purchase · Amazon, United Kingdom · 26 August 2024
Verified buyer reviews of our liquid marine collagen, as sold under our manufacturer's own label.
How to take marine collagen, and how long to give it
Take marine collagen once a day, every day, over a 60-day course. The studies above used between 1 g and 10 g of collagen peptides daily. One portion of Core™ gives you 11,000 mg, so a single measure covers it.
- When: any time you will remember, and morning with breakfast is the easiest habit to keep.
- How: shake, pour into the cap, drink it straight or stir it into water or a smoothie.
- How long: hydration improved by week 6 in the clinical studies, and wrinkles and elasticity by weeks 8 to 12. Plan on a 60-day course.
assets/img/blog/mc-routine.webpQuestions about marine collagen
How long does marine collagen take to work?
Skin hydration improved within 6 weeks in a clinical study of fish collagen peptides, and wrinkles and elasticity within 12 weeks. In our own 8-week user trial, women reported visible results in as little as 4 weeks, with further improvement by week 8.
What does marine collagen do for women?
In studies in women, daily collagen improved skin hydration, elasticity, density and wrinkle depth, and women also report stronger nails and healthier hair. Marine collagen supplies type I and type III collagen peptides, the types found in skin.
Is marine collagen a good choice for skin?
Yes, marine collagen is a good choice for skin because it is rich in type I, the type that makes up 80% to 90% of skin collagen. The authors of a 2023 meta-analysis of 26 trials described fish as the optimal source of collagen for improving skin hydration.
How much marine collagen should I take a day?
Clinical studies have used 1 g to 10 g of collagen peptides a day. Jadenmoor Core™ provides 11,000 mg of hydrolysed marine collagen in one portion.
Should I take vitamin C with marine collagen?
Yes, and Core™ already includes 120 mg of vitamin C, which is 150% of the daily reference value, in the same portion as the collagen. Vitamin C contributes to normal collagen formation for the normal function of skin.
Is liquid marine collagen better than powder or capsules?
Liquid marine collagen is the easier format to take, because it is already dissolved, so there is nothing to mix and nothing to swallow whole. A single portion of Core™ carries 11,000 mg, a dose that would take a handful of capsules to match.
