Health Benefits of Fish Collagen Peptides
Collagen Overview
Collagen, also known as the (acmetea) repair factor, is a high-molecular-weight functional protein. It is the primary structural component of the skin, making up about 80% of the dermis. Within the skin, collagen forms a delicate elastic network that locks in moisture and provides structural support.
Collagen is a fibrous protein composed of three peptide chains twisted into a helical structure, and it is also the most abundant protein in the human body, accounting for more than 30% of total protein. Rich in amino acids such as proline and hydroxyproline, collagen plays an essential role in cellular function, particularly within the extracellular matrix of the skin. For this reason, collagen has become one of the most sought-after ingredients in the beauty industry across developed countries.
Fish Collagen Peptides
Fish collagen peptide is a natural health product derived from fish skin and scales, with collagen as its main component. Once consumed, collagen peptides can be directly absorbed without requiring digestion, allowing full utilization by body tissues. Compared to ordinary peptides, marine collagen peptides have a much smaller molecular weight—often just 2–4 amino acids—making them easier for the human body to absorb. Among all types, fish collagen peptides are the most bioavailable because their protein structure is closest to that of human collagen.
These peptides feature an LOC elastic mesh three-dimensional water-locking system that continuously releases hydrating groups for up to 12 hours, creating a “dermal reservoir” for long-lasting moisture. In addition, they repair damaged elastic fibers, rebuild skin structure, smooth wrinkles, fight free radicals, and slow down aging. They also help firm the skin, enhance elasticity, reduce redness, inhibit melanin formation, and promote cell renewal for brighter, clearer, and healthier-looking skin.
Benefits of Fish Collagen Peptides
Research shows that fish collagen peptides provide a wide range of physiological benefits, including:
Protecting vascular endothelial cells: Studies demonstrate that fish collagen peptides (3–10kD) can repair and protect endothelial cell damage caused by LDL, with effectiveness increasing alongside concentration.
Antioxidant activity: Collagen peptides enhance superoxide dismutase (SOD) activity, helping neutralize excess free radicals and combat oxidative stress—key factors in aging and disease.
Blood pressure regulation: Certain collagen peptide mixtures inhibit angiotensin I-converting enzyme (ACEI), thereby reducing blood pressure and promoting cardiovascular health.
Bone and joint support: Evidence also suggests improved bone density and strength with regular intake.
Collagen Extraction Methods
Traditionally, collagen has been extracted from animal skin and bone (such as pigs and cattle). However, concerns over limited absorption rates and risks of diseases like BSE (mad cow disease) and avian flu have led to a shift toward safer marine sources.
Collagen from fish scales: Mainly sourced from tilapia, which is hardy, fast-growing, and cost-effective under farmed conditions.
Collagen from deep-sea fish skin: Commonly extracted from cod, a widely harvested fish found in cold waters of the Pacific and North Atlantic. Deep-sea cod collagen is free from risks of animal-borne diseases, drug residues, and additionally contains unique antifreeze proteins, making it highly valued and trusted in global beauty markets.
Modern Collagen Processing
The extraction process involves mixing raw materials (fish scales, skin, or bones) with water, then applying high-temperature steaming and enzymatic hydrolysis under controlled pH conditions. The filtrate is then concentrated and dehydrated before being spray-dried into a fine collagen powder. This modern process ensures purity, safety, and high bioavailability of the final product.
