You'll see brands marketing collagen by type as if more types mean more benefits. It doesn't. Type is simply a reflection of the source. Chicken sternum gives you Type II. Bovine hide gives you Type I and III. Marine gives you Type I, the most abundant collagen in the human body, accounting for over 90% of your body's total collagen.

What actually matters is source, purity, and bioavailability. TruMarine® is Premium Select Grade Type I marine collagen, wild-caught, single source, and clinically proven to deliver 1.5x greater bioavailability than other leading brands. Chosen for purity and potency, not categorized for marketing purposes.

Type is a category. Source is everything.

Learn more about why source matters HERE

Visibly firmer, more hydrated skin. Stronger hair and nails. Reduced joint pain and improved mobility. Better bone density over time. And because TruMarine® has 1.5x greater bioavailability than other leading brands, your body actually absorbs and uses what you're taking.

Learn more here.

Not all collagen is created equal.

When it comes to collagen, the source matters. withinUs® TruMarine® Collagen is derived exclusively from the scales of wild-caught fish, a sustainable and premium source. Collagen peptides from wild-caught fish scales are clinically shown to be among the purest and most bioavailable forms available. This means TruMarine® Collagen is absorbed more efficiently into the bloodstream, allowing for a lower daily serving while still delivering superior results.

If you've tried a different collagen brand before and didn't notice a difference, source and absorption are likely why.

TruMarine® is wild-caught from the deep, clean waters of the South Pacific, sustainably sourced, and ultra-pure, with a low molecular weight that allows your body to absorb and use significantly more than any bovine, porcine, or avian source.

Not all marine collagen is equal either. TruMarine® is the only Premium Select Grade marine collagen in North America, clinically proven to deliver 1.5x greater bioavailability than other leading brands. That difference shows up in your serving size. TruMarine® delivers results at just 5 grams daily. Many bovine collagens require 10 to 20 grams to achieve a comparable effect, and pills or gummies absorb even less.

You'll also see multi-collagen products marketing a blend of types as a benefit. Combining collagen from multiple animal sources doesn't multiply the benefits; it dilutes the purity. You have no way of knowing the quality of each source, how they interact, or what you're actually absorbing. A single, ultra-pure source at the right dose will always outperform a cocktail of mixed animal origins.

Collagen sourced from land animals comes from skin and bones, which absorb contaminants and impurities from the animals' environment and food supply. Those impurities affect the final product, which is why so many bovine and porcine collagens have an unpleasant odour or taste and need to be flavoured or sold in capsule form to mask it.

TruMarine is virtually tasteless and odourless and dissolves completely. That's a reflection of purity.

withinUs TruMarine® Collagen is verified, tested, and transparent at every step.

Every lot produces a Certificate of Analysis, meaning every batch is tested and documented before it ever reaches you. It is manufactured in Canada under strict Good Manufacturing Practices, in a sterile facility free of gluten, nuts, soy, and common allergens.

Wild-caught and sustainably sourced. Third-party tested. Non-GMO Project Verified. Kosher certified. Health Canada NPN licensed.

withinUs is B Corp certified at the brand level, meaning our commitment to quality, people, and the environment is independently verified.

Testing is not something we do to check a box. It is how we have operated since day one, and it is not something we will ever compromise on.

TruMarine® is virtually tasteless and odourless, so it works in almost anything without changing the flavour.

Add it to hot or cold liquids, stir it into food, or blend it into a smoothie. It dissolves instantly with no gritty texture or aftertaste.

Our favourites: coffee, tea, lemon water, smoothies, juice, yogurt, and oatmeal.

No. TruMarine® Collagen is sourced exclusively from wild-caught, sustainably sourced fish and contains no shellfish or shellfish derivatives of any kind.

TruMarine® is sourced exclusively from the deep, clean waters of the South Pacific, wild-caught from small, independently managed fisheries committed to preventing overfishing. It is Premium Select Grade, the highest purity standard available, and the only marine collagen of its kind in North America.

Crafted into peptides using a proprietary, chemical-free method with pure volcanic spring water.

No preservatives. No stabilizers. Nothing added.

withinUs TruMarine® Collagen has undergone extensive third-party, double-blind studies to ensure clinically proven results. Every person is different, and TruMarine® is not a quick fix. Clinical studies show that people taking 5 grams daily typically notice benefits within 4 to 8 weeks. But the deeper benefits, stronger bones, improved joint comfort, and long-term skin health, build over time with consistency.

This is a foundation supplement. The results compound the longer you take it.

Clinical studies support 5 grams daily of TruMarine Collagen, approximately one scoop or stick pack, as the effective dose for most people. For joint health specifically, we recommend starting with 10 grams daily for the first four weeks, then dropping to 5 grams as a maintenance dose.

Taking more than 5 to 10 grams daily is not harmful, but consistency at the right dose matters more than quantity. Five grams every day will always outperform ten grams taken sporadically.

TruMarine® Collagen is a naturally sourced product with no artificial ingredients, fillers, or additives. That said, every pregnancy and postpartum journey is different. We always recommend consulting your healthcare practitioner or midwife before adding any supplement to your routine during pregnancy or while breastfeeding. They can advise based on your individual health needs and the most current Health Canada guidelines.

Your body's natural collagen production begins to slow in your mid-twenties, but there is no reason you can't start earlier as a preventative measure. TruMarine® is a naturally sourced product with no artificial ingredients, fillers, or additives. As with any supplement for children or teenagers, we recommend consulting with a healthcare practitioner if you have specific questions or concerns.

Not even close. TruMarine Collagen is the most abundant protein in your body, found wherever there is structure: skin, joints, bones, gut lining, organ linings, hair, and nails. People take TruMarine® daily for many different reasons: to reduce joint pain, support post-workout recovery, strengthen hair and nails, improve skin hydration and elasticity, and support bone density over time.

What often surprises people is how much it supports from the inside out. Glycine, one of TruMarine®'s key amino acids, has a natural calming effect on the nervous system and supports deeper sleep. TruMarine Collagen also plays a critical role in gut health by supporting the integrity of the gut lining and in immune function, since a healthy gut is foundational to a strong immune system.

The benefits compound the longer you take it consistently.

TruMarine® is a naturally sourced marine collagen peptide with no artificial ingredients, fillers, or additives. Side effects are rare. As with any supplement, some people may experience mild gastrointestinal sensitivity, particularly when first introducing it. If you have specific health concerns, are pregnant or breastfeeding, or take prescription medications, we recommend consulting your healthcare practitioner before use.