The Best Marine Collagen Supplements

Smaller peptides, pescatarian-friendly, and the type most studied specifically for skin.

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Marine collagen is derived from fish rather than bovine sources, with a smaller peptide size that's often claimed to absorb more readily. It's also predominantly type I — the type most abundant in skin.

It costs more than bovine collagen, so the question is whether the difference justifies it for your goals. For skin specifically, the case is reasonable.

Our picks

  1. 1
    100
    ExcellentHealth Score 100 out of 100 — Excellent
    Best overall

    Sports Research Wild-Caught Marine Collagen Peptides

    A single-ingredient powder from wild-caught barramundi and red snapper, with the dose stated per scoop and Informed Sport certification — meaning an independent lab verifies what is in the tub, not merely that the fish was wild. For a marine collagen, where sourcing is the whole proposition, that verification is the difference that matters.

    How this scored 100/100
    • Formula transparency25/25

      Full ingredient list published and screened.

    • Restricted substances30/30

      Nothing on the EU banned or restricted lists, and no common contact sensitizers.

    • Independent verification20/20

      An independent lab verifies the contents (Informed Sport).

    • Dose disclosure25/25

      Active concentration stated by the manufacturer — rare, and the strongest signal here.

    What’s in it

    Full ingredient list publishedInformed Sport1 thing to know
    • Hydrolyzed marine collagen peptides, 10g per scoop
    • Wild-caught barramundi and/or red snapper
    • Note: Contains fish — not suitable if you have a fish allergy.
    Check price on Amazon
  2. 2
    90
    ExcellentHealth Score 90 out of 100 — Excellent
    Largest serving

    Vital Proteins Marine Collagen Peptides

    Snapper-scale collagen at 12g per serving, the highest dose here, from the brand most widely stocked. Sourcing is disclosed and the label is a single ingredient — but its certification covers non-GMO status rather than independently verifying the contents, which is what separates it from the pick above.

    How this scored 90/100
    • Formula transparency25/25

      Full ingredient list published and screened.

    • Restricted substances30/30

      Nothing on the EU banned or restricted lists, and no common contact sensitizers.

    • Independent verification10/20

      Non-GMO Project Verified certifies a single attribute, not the purity or dose of what's in the tub.

    • Dose disclosure25/25

      Active concentration stated by the manufacturer — rare, and the strongest signal here.

    What’s in it

    Full ingredient list publishedNon-GMO Project Verified2 things to know
    • Snapper scale collagen peptides, 12g per serving
    • Note: Non-GMO Project Verified certifies GMO status only — it is not an independent check of purity or contents.
    • Note: Contains fish — not suitable if you have a fish allergy.
    Check price on Amazon

What we weighed

Ingredients that matter

Type I marine collagen
The dominant collagen type in skin.
Vitamin C
Supports the body's own synthesis. Frequently bundled.