Not all MARINE collagen is created equal

The popularity of collagen products continues to grow. We knew when we were one of the first companies to bring a premium-select grade, granular powder marine collagen (to North America) that this was not a fad.  Rather, a critical supplement that would enhance our overall well-being and as millions have done all over the wold, we would become educated and incorporate a high-quality collagen peptide into our daily regimen. 

People are becoming familiar with hydrolyzed collagen powder and understand the benefits. We used to get questions such as: "Is this something you inject into your lips?". Five years later, we are noticing that there is a shift in the kind of questions we receive as people are educating themselves on the different sources, grades and quality of collagen products on the market.


The source and purity of hydrolyzed collagen powder determines taste, smell, bioavailability, and overall effectiveness.

Marine collagen is graded as follows:

LOW GRADE - fish skin collagen / shellfish / shark cartilage 

Fish skin collagen is proven to have lower bioavailability (ie: absorption rate) when compared to premium grade fish scale collagen.

Shellfish and shark cartilage collagen has very high level of calcium, which you want to avoid. These products are also often not sustainable.  

MID-GRADE - combination of fish skin and scale

Mid-grade marine collagen is a combination of high grade and low grade marine collagen. The ratio of fish skin and fish scale is often unknown.

PREMIUM GRADE - exclusively fish scale (no skin).

PREMIUM-SELECT GRADE -wild-caught, exclusively fish scale (no skin), one source of fish vs multiple types of fish.

withinUs TruMarine™ Collagen is the highest grade of marine collagen available, which is why it is Premium-Select Grade. It is Ultra Pure and a sustainable source of collagen. Fish scales contains NO oils, which is the main contributing factor to the lower quality due to the impurities. withinUs TruMarine™ is in granular form, which is categorized as very fine and therefore dissolves completely in hot and cold beverages.

  • STRINGENTLY TESTED - withinUs TruMarine Collagen is stringently tested  (independent/third party) for impurities and contaminants, including lead and mercury.  As a result, our product is considered Ultra-Pure, dissolves clear, and is virtually tasteless and odourless.  
  • ULTRA PURE - The process that creates a hydrolyzed TruMarine Collagen is the global leader in the industry using a proprietary method using no harsh acids or chemicals but rather a natural enzymatic process to obtain the highest quality and purest form of collagen.
  • SUPERIOR BIOAVAILABILITY - Marine collagen sourced exclusively from the scales from wild-caught fish has been proven to have superior bioavailability (1.5 times higher absorption rate) in comparison to other sources of all collagen including low grade and marine collagen sourced from fish skin. 
  • LESS IS MORE - The daily recommended serving for withinUs TruMarine™ Collagen is 5 grams (1 scoop), which is less than half of the recommended serving size of other collagen products. Our superior absorption rate (bioavailability) means fewer grams daily for all the proven benefits.  

 We are proud to offer a high quality product and offer transparency and honesty.  We strive to offer our customers the best of the best.


withinUs Team 

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