Marine Collagen Supplements

Our marine collagen range is built around hydrolysed type I marine collagen, with carefully selected complementary nutrients that build a more complete nutritional foundation for healthier looking skin, hair and nails.

For a broader routine, explore the rest of our range here: beauty supplements complements. These formulas can be used along with marine collagen to provide additional targeted nutritional support.

What Marine Collagen Is and Where It Comes From

Marine collagen used in supplements is commonly sourced from fish skin and scales, then hydrolysed into shorter peptide chains. Hydrolysis breaks the long collagen proteins into smaller collagen peptides, the form commonly used in oral collagen supplements. Fish-derived marine collagen is predominantly type I collagen, the major collagen type found in human skin and many connective tissues.

Marine Collagen Compared with Bovine, Chicken, Eggshell and Vegan Collagen

The source of a collagen supplement determines which types of collagen it naturally provides, so the best choice depends on what you want from your supplement.

Marine collagen is sourced from fish and is predominantly type I collagen, the main collagen type in skin and one of the most abundant structural proteins in the body. This makes marine collagen an especially logical choice for beauty-focused formulas designed around skin and connective tissue. It is also suitable for pescatarians and people who prefer to avoid bovine or porcine ingredients.

Bovine collagen is usually derived from cattle hide and typically supplies types I and III collagen. It is a popular general-purpose collagen source, but it is not suitable for pescatarians or anyone who avoids beef-derived ingredients.

Chicken collagen is most commonly derived from cartilage and is particularly associated with type II collagen, the principal collagen type in cartilage. For that reason, chicken cartilage collagen is more commonly found in joint-focused products than beauty formulas.

Eggshell membrane is a different poultry-derived ingredient. The thin membrane inside a hen’s eggshell naturally contains several structural compounds, including predominantly type I collagen alongside types V and X. It is therefore more than simply a source of purified collagen peptides and is used in its own right as a multi-component eggshell-membrane ingredient.

Vegan “collagen” products do not contain collagen at all. Because collagen is an animal protein, vegan formulas instead provide nutrients and amino acids intended to support the body’s own collagen production. They are the appropriate choice for people following a plant-based diet, but they are not a plant-derived equivalent of hydrolysed marine collagen peptides.

If you are looking specifically for a beauty-focused source of hydrolysed type I collagen without using beef or pork, marine collagen is the clear fit.

Who Marine Collagen Supplements Are Suited To

Marine collagen can be particularly relevant at times when changes in age, hormones, diet or body composition make skin, hair, bones and connective tissues more of a priority.

• Women in perimenopause and menopause. Falling oestrogen is associated with a reduction in skin collagen, thickness, elasticity and hydration. That makes collagen an especially relevant addition to a beauty and nutrition routine during midlife.
• People losing significant amounts of weight, including those using GLP-1 medicines. GLP-1 treatments can substantially reduce appetite and overall food intake, while rapid weight loss itself can be accompanied by changes in the appearance of the face, skin and hair. A well-designed collagen supplement can provide collagen peptides alongside selected beauty nutrients at a time when getting enough nutrition from a smaller diet may require more attention.
• Men noticing the visible effects of ageing. The amount of collagen in skin naturally declines with age. Marine collagen provides a convenient daily source of hydrolysed type I collagen for people who want to make collagen a consistent part of their long-term beauty routine.
• People wanting tosupport joint and bone health. Collagen is not just a skin protein: it is also an important structural component of bone, tendons, ligaments and other connective tissues. Marine collagen can therefore fit naturally into a broader beauty, healthy-ageing or joint support routine.
• Active adults. If running, strength training, impact exercise or simply staying mobile as you age has made you more conscious of bones, tendons and connective tissue, a daily collagen formula can be a useful addition to a wider nutrition routine.
• Pescatarians and people avoiding bovine or porcine collagen. Because marine collagen comes from fish, it provides genuine animal-derived collagen peptides without using beef or pork.

In other words, marine collagen is not only for someone who wants “better skin”. It is particularly relevant during the life stages and lifestyle changes when maintaining skin, hair, bone and connective tissue becomes a bigger nutritional priority.

Marine collagen is not suitable for vegetarians, vegans or anyone with a fish allergy.

How to Judge the Quality of a Marine Collagen Supplement

These are the criteria worth checking before you buy:

• Source and traceability: look for a clearly identified marine source, responsible sourcing information and reputable manufacture. “Wild-caught” or “farmed” alone is not a meaningful measure of supplement quality; traceability and quality control matter more.
• Form: look for hydrolysed collagen peptides. Hydrolysis breaks collagen into smaller peptide fragments and is the form most commonly used in oral collagen supplements.
• Supporting nutrients: a well-designed beauty formula can provide considerably more than collagen alone. Vitamin C contributes to normal collagen formation for the normal function of skin; biotin contributes to the maintenance of normal hair and skin; zinc contributes to the maintenance of normal hair, nails and skin; and copper contributes to the maintenance of normal connective tissues.
• Testing and manufacturing: look for GMP-certified manufacture and independent laboratory testing. Swallow supplements are made in the UK in GMP-certified facilities and independently third-party tested, including testing through Intertek.
• Label transparency: look for clearly stated ingredient amounts, an unambiguous allergen declaration and a formula that tells you exactly what you are taking rather than hiding key ingredients inside proprietary blends.

Safety, Allergens, and Dietary Suitability

Marine collagen is derived from fish, so it is not suitable for people with a fish allergy, vegetarians or vegans. Always follow the stated daily dose and check the allergen and ingredient information on the individual product before use.

Food supplements are not a substitute for a varied, balanced diet or a healthy lifestyle, and are not intended for anyone under 18. Anyone pregnant, breastfeeding, taking prescribed medication, or awaiting surgery should speak to their GP first.

Shop Marine Collagen Supplements From Swallow

Swallow marine collagen products are built around hydrolysed type I marine collagen rather than collagen alone. Our Pro Marine Collagen Peptides formula combines collagen with PureWay-C vitamin C, biotin, zinc and copper, alongside further carefully selected beauty nutrients. Vitamin C contributes to normal collagen formation for the normal function of skin, while biotin, zinc and copper provide authorised nutritional support for normal skin, hair, nails and connective tissue.

Our supplements are made in GMP-certified UK facilities and independently third-party tested. Every order is backed by our 6-month money-back guarantee, with free UK delivery.

Browse Pro Marine Collagen Peptides, or pair it with Magnesium and Collagen Support or the Hair, Skin, and Nails bundle for a complete routine. If you want help choosing between our collagen formulas, contact our nutrition team before you buy.