PlainPill

Marine Collagen

People mainly take Marine Collagen for skin & hair, recovery. Based on 6 first-hand reports and 3 meta-analyses & systematic reviews in the medical literature. Ranked #552 of 1,974 overall.

25
User score
Mostly positive
50% positive33% mixed0% negative17% unclear

Of reports that state an outcome, 60% are positive.

Clinical research
BModerate research base
3
meta-analyses
5
RCTs
203
papers

What Marine Collagen does, according to users

Of the people who reported each effect, the share who said it got better.

What the research says

Systematic reviews and meta-analyses from PubMed, with their published conclusions.

BModerate research base

At least one meta-analysis, or 5+ randomized controlled trials. The grade measures how much human research exists — read the conclusions below for what it found.

Mar Biotechnol (NY) · 2021 · Meta-analysis / systematic review
Collagen from Marine Sources and Skin Wound Healing in Animal Experimental Studies: a Systematic Review

Conclusion: The results were based mainly on histological analysis and it demonstrated that Col-based treatment resulted in a higher deposition of granulation tissue, stimulation of re-epitalization and neoangiogenesis and increased amount of Col of the wound, culminating in a more mature morphological aspect. In conclusion, this review demonstrates that marine Col from different species presented positive effects on the process of wound skin healing in experimental models used, demonstrating the huge potential of this biomaterial for tissue engineering proposals.

PubMed 33404918 ↗

Dosage people report

As stated by users — not a recommendation. Follow the label or your doctor.

dailyas reported

Reported side effects

How often each side effect came up across all reports.

No side effects reported so far.

What users say

Verbatim quotes, shortened only — each links to the original discussion.

“Supplements: Vitamin D, niacin, potassium, marine collagen.”
Source discussion ↗
“Collagen capsules are usually dosed so low, best to get the powder form.”
Source discussion ↗
“Marine collagen is usually of better quality than bovine but it works fine for me.”
Source discussion ↗
“Marine collagen in coffee for a few years now, no noticeable changes to skin, hair or nails, but considerable benefits to knees and joints.”
Source discussion ↗
“I have been taking marine collegan for a couple of years and have 100% noticed a difference in my skin and nails. With my hair it's hard to say, but definitely I look more hydrated.”
Source discussion ↗
Top discussions (5)

Other options for skin & hair

User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate