TruFact: Not all collagen is created equal

Collagen (like most supplements) have various sources, grades, and benefits. With the growing abundance of collagen products on the market, we understand the difficulty in identifying high quality products. 

Research is key when choosing a supplement.

At withinUs Natural Health, we are proud to provide only premium-select grade products to our customers and retailers. We can help educate our customers by providing 100% transparency and sharing information as well as scientific research and independent clinical trials on our marine collagen. We fully believe that knowledge is power, and objective information should be the deciding factor when choosing what goes into your body. Below we have listed a few key factors in identifying high quality collagen products. 


One of the main factors in determining the quality of a collagen product is the raw material source. Collagen can only be sourced from animals such as cows, pigs, chicken, and fish (never from plant-based sources). Marine collagen is considered to be the most premium source of collagen and wild-sourced is considered more favorable than farmed sourced.  Independent clinical studies have proven that marine collagen sourced specifically from fish scales has higher bioavailability than other collagen sources. Bioavailability is a fancy word to describe how effectively the product is absorbed into the bloodstream. 

The source of collagen also affects the product's purity. Collagen products sourced from land animals have a greater risk for impurities as oils from the skin and bones, which can be found in the final product.  This is also true with collagen sourced from fish skin, as this is where the oils are found. Impurities affect the color (i.e. yellow), smell and taste of the final product, which is why many collagen products on the market are flavored or sweetened.  


As with many products, there are various grades available.  Marine collagen is graded as follows:

LOW GRADE - fish skin collagen

MID-GRADE - mix of fish skin and scale

PREMIUM GRADE - exclusively fish scale (no skin)

withinUs TruMarine™ Collagen is a premium-select grade collagen, sourced exclusively from the scales of sustainable, wild-caught fish - fish scales are a very pure, clean, abundant source of collagen.  In addition, withinUs TruMarine Collagen is stringently tested for impurities and contaminants, including lead and mercury.  As a result, our product is Ultra-Pure - dissolving crystal clear and virtually tasteless and odorless.  

The daily recommended serving is 5 grams (1 scoop), which is less than half the recommended dosage of other collagen products. Our greater absorption rate/bioavailability means fewer grams daily for more benefits.



We talked a little bit about bioavailability already, but this is such an important factor, that we want to expand with more detail.

The source of the raw material plays an important role in bioavailability (wild fish scale vs other sources), but it is not the only contributing factor. The molecular weight of a product is also important; this refers to how 'broken down' the product is, think of it as 'pre-digested.' The less work your body has to do to break down the product, the easier (and quicker) it is to absorb.

withinUs TruMarine™ Collagen is broken down using a natural enzymatic hydrolyzation process. Using enzymes rather than harsh acids or heat to break down the marine collagen produces a low molecular weight - about 3000-5000 Daltons - which makes the product highly bioavailable. Other popular consumable sources of collagen, and even bone broth, cartilage and fish skin, have a much higher molecular weight, making it difficult for the body to break down and absorb effectively. The hydrolyzation process that withinUs TruMarine™ Collagen undergoes is an important process that ensures maximum absorption, allowing your body to utilize as much of the product as possible. 


Ultra-Pure withinUs TruMarine™ Collagen is characterized by its unique amino acid composition, offering a high concentration of specific amino acids essential for collagen regeneration and production within the body. These amino acids are broken down into amino acid chains, and these specific chain builds are rare to find in other food and supplement sources and provide the body with many benefits associated with health and beauty.


Collagen promotes joint health by helping to repair joint matrix degeneration and improves long-term joint comfort and mobility.

In comparison to other supplements recommended for pain related to joint degeneration, withinUs TruMarine™ Collagen is proven to help improve overall joint health, as opposed to temporarily relieving pain. Collagen works from within the joints, enhancing joint comfort and mobility, and ultimately reducing joint pain. withinUs TruMarine™ Collagen improves joint health by strengthening cartilage and overall joint structure. 

withinUs TruMarine™ Collagen also helps maintain bone health and bone mineral density, which reduces the risk of pain and stiffness associated with osteopenia and osteoarthritis. 


Our product slows down the aging process by providing the body with the nutritional building blocks it needs. In particular, marine collagen contains a higher level of the amino acids glycine, proline, and hydroxyproline than other protein sources. These key amino acids have been clinically proven for promoting healthy tissue growth by the cells themselves.

In addition to slowing the aging process, withinUs TruMarine™ Collagen helps reduce fine lines and wrinkles, reduces UVB-induced skin damage and increases skin hydration and suppleness, all are paramount for overall skin health.


It is important to know exactly what you are putting into your body- what it is made from, where it comes from, and the bioavailability. We are proud to be a transparent company, offering as much information possible to our customers, making your research easy.

Knowledge IS power, so take the time and do the research. Your body will thank you! 

If you have any questions, our withinUs team would be happy to answer and always enjoy hearing from our customers.  Feel free to comment below or email us directly at:


withinUs Team

1 comment

  • Lisa Braun

    Do you have 3rd party testing done on your marine collagen?

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