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Head-to-head evidence comparison — which supplement is right for you?
Marine Collagen wins 1 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
6 of 6 studies with measurable effects showed benefit.
Top outcomes
Verdict
Mostly mechanism / observational
Top outcomes
Shared outcomes (1)
Outcomes where both Marine Collagen and Panthenol (provitamin B5) have evidence — compare verdict strength side-by-side.
5-10g daily
Morning or evening, Can add to beverages or food
Hydrolyzed marine collagen powder
Topical cosmetic only. Panthenol/dexpanthenol is used at roughly 1-5% in moisturizers, soothing creams, and after-procedure ointments, applied to the skin as directed. There is no oral, injectable, or systemic dose in this context — oral vitamin B5 is separate. This library does not provide an ingestion protocol.
any
Leave-on moisturizer or soothing/repair cream containing panthenol (≈1-5%)
8-12 weeks
8-12 weeks
4-8 weeks
12-16 weeks
Throughout
1-4 weeks
1-2 weeks
Throughout
Marine collagen and its derivatives: Versatile and sustainable bio-resources for healthcare
Materials science & engineering. C, Materials for biological applications (2020) · Systematic review
Particular attention is given to the bioactive properties of marine collagen that are being explored in preclinical and clinical studies, and pave the way to an increased demand for this biomaterial in the next future.
Collagen and gelatin
Annual review of food science and technology (2015) · Systematic review
Numerous studies have investigated the bioactivities and biological effects of collagen, gelatin, and their hydrolysis peptides, using both in vitro and in vivo assay models.
Recent Advancements in Marine Collagen: Exploring New Sources, Processing Approaches, and Nutritional Applications
Marine drugs (2025) · Systematic review
Hence, recent interest has propelled research in identifying novel collagen sources and advancing technologies to produce marine collagen-based products.
A new topical panthenol-containing emollient: Results from two randomized controlled studies assessing its skin moisturization and barrier restoration potential, and the effect on skin microflora.
J Dermatolog Treat (2017) · Rct · n=23
3-week intra-individual RCT (n=23): a panthenol-containing emollient vs control on SDS-challenged skin
Dexpanthenol enhances skin barrier repair and reduces inflammation after sodium lauryl sulphate-induced irritation.
J Dermatolog Treat (2002) · Rct
In an SLS-irritation model, dexpanthenol cream twice daily accelerated barrier repair significantly more than vehicle or untreated skin
Accelerated wound healing with a dexpanthenol-containing ointment after fractional ablative CO2 laser resurfacing of photo-damaged skin in a randomized prospective clinical trial.
Cutan Ocul Toxicol (2019) · Rct · n=38
Split-area trial (n=38) after fractional CO2 laser: dexpanthenol ointment vs petroleum jelly
Based on systematic reviews of marine collagen for skin applications. Studies show variable results with 8-12 week protocols. Fish source and peptide size affect bioavailability. Most studies used 5-10g daily doses.
AI-estimated from published studies. Interpret as directional guidance.
Marine Collagen has a higher evidence score (6/10 vs 6/10) and wins in 1 of 3 categories.
Both Marine Collagen and Panthenol (provitamin B5) score equally (60) for skin hydration & glow.
No known interactions between Marine Collagen and Panthenol (provitamin B5) have been documented in our database. However, always consult a healthcare provider before combining supplements.