Marine Collagen Peptides
Also known as: fish collagen, hydrolyzed fish collagen, marine collagen peptides, Naticol
Hydrolyzed type I collagen from fish skin and scales, positioned as a pescatarian-friendly and lower-molecular-weight alternative to bovine collagen. It is used mainly in skin, hair, and nail formulas, and several of the trials pooled in collagen skin meta-analyses used fish-derived peptides at 2.5–10 g/day. It carries a fish allergen declaration and typically costs more than bovine material.
Research summary
Absorbed collagen dipeptides and tripeptides may stimulate dermal fibroblast collagen synthesis; supplies glycine, proline, and hydroxyproline.
Dosage
Daily amounts, of compound.
| Lowest studied | Typical range | Highest studied | Upper limit |
|---|---|---|---|
| 2.5 g | 2.5–10 g | 10 g | — |
2.5–10 g/day for 8–12 weeks is the studied range for skin outcomes. As with bovine peptides, it is an incomplete protein and should not be counted toward muscle protein targets.
Standardization: Specify average molecular weight (commonly 1–3 kDa) and fish species or origin
Source material: fish skin and scales (cod, tilapia, pangasius)
Forms of Collagen
| Form | Typical dose | Element % | Formats | Price |
|---|---|---|---|---|
| Marine Collagen Peptides | 2.5–10 g | — | Powder, Capsule, Tablet, Liquid, Gummy | high |
| Collagen Peptides (Bovine, Type I/III) | 2.5–15 g | — | Powder, Capsule, Tablet, Liquid, Gummy | mid |
| Hydrolyzed Collagen (Gummy Grade) | 100–500 mg | — | Gummy | mid |
Format suitability
- Capsule
- Powder
- Tablet
- Softgel
- Gummy
- Liquid
Highly soluble but can carry a faint fishy note; deodorized grades and citrus flavoring are common. Studied doses exceed what capsules and gummies can carry.
Formulation notes
Paired with vitamin C, hyaluronic acid, and biotin in beauty formulas. Requires a fish allergen statement; verify species for kosher positioning.
- Allergen: fish
Sources
Related ingredients
Collagen Peptides (Bovine, Type I/III)
ProteinEnzymatically hydrolyzed collagen from bovine hide or bone, delivering short peptides rich in glycine, proline, and hydroxyproline.
Typical: 2.5–15 g
Bamboo Extract (Silica)
BotanicalAn extract of bamboo stem and leaf standardized to a high silica content, typically about 70%, making it the most concentrated botanical silica source and a staple of hair, skin, and nail formulas.
Typical: 100–500 mg
Zinc Gluconate
MineralThe most common zinc salt in multivitamins, lozenges, and immune products, containing about 14.3% elemental zinc.
Typical: 10–25 mg
Zinc Picolinate
MineralZinc chelated with picolinic acid, a tryptophan metabolite that is proposed to aid mineral transport across the gut wall.
Typical: 10–25 mg
Biotin
VitaminBiotin is a water-soluble B vitamin that serves as the cofactor for five carboxylase enzymes in fatty acid, glucose, and amino acid metabolism.
Typical: 300–5,000 mcg