Buyers, published writers and women in our 8-week user trial describe changes in skin on this page, and several accounts mention hair and nails too.
- Verified buyers of our liquid marine collagen, as sold under our manufacturer's own label, write about skin, nails, hair and taste.
- Beauty editors and writers published first-person accounts of marine collagen after two to six months of use.
- 106 women took our liquid marine collagen daily for 8 weeks and reported what changed.
of 106 women felt the appearance of their skin improved after 8 weeks on our liquid marine collagen.
- 89%reported more moisture and glow
- 87%noticed fewer fine lines and wrinkles
- 86%reported healthier hair
What do women say about liquid marine collagen?
Women describe their skin first: in our 8-week user trial, 95% of 106 women felt the appearance of their skin improved, and the buyers and writers quoted on this page lead with skin too, in star ratings, magazine features and trial percentages. Those are different kinds of evidence, and each answers a different question, so we keep them apart.
The three kinds of account below each carry a label saying what it is:
- Buyer reviews. Short, personal and written by someone who paid for the pack. These are reviews of our liquid marine collagen as sold under our manufacturer's own label.
- Published accounts. Longer pieces by named writers who took marine collagen for months and wrote up what happened. They chose their own supplements, and their articles are independent of us.
- Our user trial. 106 women took our liquid marine collagen every day for 8 weeks and reported what they noticed.1
Read them in any order. The quotes are printed as written.
What do verified buyers say?
Verified buyers of our liquid marine collagen write about their skin in every review quoted on this page, with nails coming up in two and hair in one. A buyer review is the plainest account there is, a few lines from one person about one pack. These were left by verified buyers in Germany, France and the United Kingdom, and one buyer was 45 when she wrote hers.
“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.
Suzanne's review starts with taste, and that matters for a daily habit. Core™ has a natural berry flavour and is sugar free and fat free. You shake the pack, pour a portion into the cap, and drink it straight or stir it into water or a smoothie.
What did beauty editors and writers report?
The four beauty editors and writers quoted here each took marine collagen for at least two months and reported plumper, more hydrated or more radiant skin, with softer fine lines, less brittle nails and thicker hair also mentioned, so their pieces add time to the picture. These are their own published accounts of the supplements they chose, included because they describe the ingredient this page is about, taken for months.
“And truthfully? My skin looks better than ever.”
She calls herself a sceptic. After two months of marine collagen every day she found her skin plumper, healthier and noticeably more radiant.
Shannon LawlorBeauty editor, writing in Marie Claire UK2
“To my surprise, these worked.”
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 Stylist3
“My nails were the best I had ever had in my whole life.”
She began after turning 40. Her skin was 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 & Healthy4
“The fine lines have definitely softened.”
Three months of daily marine collagen. Softer, smoother skin from the first month, then plumper and glowier.
Eleanor VousdenBeauty editor, writing in Who What Wear UK5
Independent first-person accounts of marine collagen, published by the outlets named. Each writer describes the supplement she chose herself.
The accounts differ in length. Shannon Lawlor wrote after two months2 and Eleanor Vousden after three.5 Charlotte Bitmead wrote after around six months.3 Charlotte Dormon followed hers to month six.4
assets/img/blog/rv-read.webpWhat did 106 women report in our trial?
In our user trial, 95% of 106 women felt the appearance of their skin improved and 89% reported more moisture and glow after taking our liquid marine collagen every day for 8 weeks.1 A single review tells you about one person, while a trial asks the same questions of a whole group at once. Each figure below is the share of those women who gave that answer. How the studies were run is set out in how our collagen is tested.
felt that the appearance of their skin improved.
reported more moisture and glow.
noticed a reduction in fine lines and wrinkles.
reported healthier hair.
reported firmer skin.
reported stronger nails.
found it easy to include in their daily routine.
8-week user trial of our liquid marine collagen, 106 women. Figures are shares of participants.
A daily drink gets its 8 weeks when you take it every day, and the last tile shows that 99% of the women in the trial found it easy to include in their daily routine.
On timing, women in the trial described visible results in as little as 4 weeks, with further improvement by week 8.1 Participants also reported more energy and better joint flexibility.1
What do the before and after photos show?
The photos show three pairs from the user trial, one each for skin, hair and nails, a second record of the trial beside the words and percentages. They let you see what it looked like for women in our studies.1
Participants in the 8-week user trial of our liquid marine collagen, photographed before and after. The figures are shares of all 106 participants.
The full set, including the skin-imaging pairs from the clinical study, is in collagen before and after.
How do you read a collagen review?
Read any collagen review by asking three questions, wherever you find it: who wrote it, what she took, and for how long. Every account on this page answers all three.
- Who wrote it? A buyer, a journalist and a trial participant are all worth hearing, for different reasons. A buyer chose and paid, a writer kept notes over months, and a participant answered the same questions as everyone else in her group.
- What did she take? Look for the source and the amount. Charlotte Bitmead names hers: 10,000 mg of marine collagen a day.3
- For how long? The trial ran for 8 weeks.1 The published accounts here cover two to six months of use.
A review that answers those questions gives you something to compare. Reviews sit alongside the placebo-controlled research, which we set out in do collagen supplements work.
If you would like to start your own daily portion, Core™ is a one-off purchase with no subscription.
Questions about collagen reviews
What do reviews say about liquid marine collagen?
Reviews of liquid marine collagen describe skin first. In our 8-week user trial, 95% of 106 women felt the appearance of their skin improved, and the verified buyers quoted here write about skin, nails and hair.
Are the buyer reviews on this page verified?
Yes, each buyer review on this page is marked as a verified purchase and shows the country and the date it was posted. They are reviews of our liquid marine collagen as sold under our manufacturer's own label.
Which collagen did the beauty editors and writers take?
Each writer describes the marine collagen supplement she chose herself. Their articles are independent first-person accounts, published by the outlets named in the Sources list.
How long did the women take collagen before they reported results?
In our user trial, women reported visible results in as little as 4 weeks, with further improvement by week 8. The four published writers each took marine collagen for between two and six months.
What does liquid marine collagen taste like?
Core™, our liquid marine collagen, has a natural berry flavour, and one verified buyer wrote “The taste is amazing and it is sugar free!” You can drink the portion straight or stir it into water or a smoothie.
What did the 8-week trial ask women about?
The 8-week trial asked women about skin appearance, moisture and glow, fine lines and wrinkles, firmness, hair, nails, and how easy the drink was to fit into the day. 106 women answered after taking our liquid marine collagen daily for 8 weeks.
