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The Million Dollar Question: Does Marine Collagen Work?

Collagen has been used in Japan and other Asian countries for its anti-aging benefits for decades. It’s only been in the last ten years or so that collagen has received attention outside Asia. There is an ever-growing body of scientific evidence showing benefits of collagen supplementation on skin, hair, nails, joints and digestive system.

Let's investigate why Edible Earth's Marine Collagen is more effective than the rest...

Collagen is the most abundant protein in our body. The molecular size of our collagen is 300kDa, as collagen is composed of three polypeptide chains, each of which is 100kDa. "Collagen peptide" is prepared by decomposing gelatin into smaller sizes using proteinase. Collagen peptide does not form a gel and readily dissolves in cold water, even at relatively high concentrations. Thus, collagen peptide is easier to ingest in large amounts than native collagen or gelatin. The molecular size of collagen peptide varies widely (0.3~8 kDa) depending on the method and conditions of decomposition. Collagen Peptide is a high-quality bio peptide which is also known as "Super Collagen" because this is the form of collagen that our body can best absorb. Marine collagen contains much larger amounts of the amino acids, glycine, proline and hydroxyproline. It is Type 1 Collagen, of which 90% of our bodies collagen is made from, this is why supplementing with marine collagen is more effective than bovine or porcine.


Clinical studies showed that 3 – 10g of marine collagen peptides taken daily for 4 – 12 weeks significantly improved skin hydration, firmness and elasticity, and reduced wrinkle appearance and fine line visibility. It also alleviated symptoms of digestive diseases, osteoarthritis, UVB skin damage, improved joint physical function, bone density, hair and nail strength, muscle growth and provided benefits for optimal gut health. iT even proved helpful in alcohol induced liver disease in rats.


Scientists had previously investigated the effects of ingestion of collagen peptide (molecular weight, 3,000~5,000 Da) on the collagen fibrils of the dermis. In this study, Collagen peptide or lactalbumin was added to the diet os subjects, ingesting a dose of 0.2 g/kg BW/day for 62 days. The skin of the neck was subjected to observation of collagen fibrils by transmission electron microscopy. The density of collagen producing fibroblasts in the dermis was also determined. The diameter of collagen fibrils did not differ significantly between subjects that ingested normal diet and animals that ingested the lactalbumin containing diet (Figs. 2a, 2b). However, the diameter and density of collagen fibrils increased significantly when collagen peptide was administered, and this was associated with an increase of the density of fibroblasts (Fig. 2c and Table 1). These results suggest that ingestion of collagen peptide has beneficial effects that are not found with other types of protein (Fig. 2).


We carried out a double blind test in order to examine the effects of collagen intake on skin hydration. Young female volunteers consumed a drink containing 10 g of collagen or placebo every day for 2 months. Figure 1 shows the increase in water absorbing capacity of the stratum corneum of the skin during the test period. The increase in water absorbing capacity of the collagen-ingesting group (80.2 µS) was larger than that of the placebo group (10.8 µS) after 1 month, and the difference became larger between the collagen group (203.5 µS) and the placebo group (113.7 µS) when the test period was extended to 2 months. The increase in the placebo group may be explained by the fact that both the placebo drink and the collagen drink contained vitamin C, which may have improved skin function. Morgantie et al. also reporte that skin hydration increased when a patient with dry skin ingested collagen.


Nail defects are a common complaint among women. Rosenberg et al. showed that ingestion of collagen improved nail defects; they administered 7g of collagen daily and found that nail defects were improved in 43 of 50 patients (86%) (Fig. 3). It was also reported that the cessation of collage ingestion resulted in the reappearance of nail defects. Schwimmer et al. also reported improvements in nail defects in 80% of patients after ingestion of collagen peptide. The main component of hair is keratin, as is the case for stratum corneum and nails. Scala et al. investigated the effects of collagen ingestion on growth and thickness of hair. They found that the thickness of hair increased significantly after collagen ingestion for 62 days, and more pulling force was required to break the thickened hair. The increase in hair thickness was more evident in women than in men, possibly because the initial thickness was smaller in women. Hair thickness returned to initial size when collagen ingestion stopped.


The target subjects were members of the Kantoh Collegeate American Football Association. This examination was approved by both research ethics committee (REC) and the individuals participating in the research. We divided the players into two groups. One group (the “collagen group”) took a powder mix of10g of a marine collagen supplement with 10g of whey protein after the club activities six times a week for a year. The other group (the “whey protein group”) took 20g of whey protein without collagen. It is known that whey protein is high quality protein and has high content rate of essential amino acids. Both groups had been having dietary nutrition surveys and body composition tests before the examination, after three months, six months and twelve months respectively. They also had medical checks through blood tests and urine tests after 6 months and 12 months.

Their body weight, muscle weight and fat weight significantly increased during the initial three months (the 'muscle building' period) regardless of groups. This result suggests that marine collagen is a protein source same as whey protein. However, the body weight, muscle weight and fat weight of the “whey protein group” decreased from the third month and reverted to their pre-examination condition after a 12 month period. This means, that the “whey protein group” could not maintain their body condition till the end of the testing period. On the other hand, members of the “collagen group” maintained their weight throughout the test period in a relatively consistent manner.


Collagen is the most abundant protein in the human body.

As we age, our bodies ability to produce collagen and elastin reduces by approximately 1.5% each year from our mid twenties, and signs of aging such as skin damage, sagging and wrinkles start to appear. Research in this area showed that ingesting collagen provides our body the building blocks necessary for the synthesis of new collagen and, secondly, it directly stimulates fibroblast cells deep within our skin further supporting the production of collagen and elastin.

Most common sources of commercially-available collagen supplements are fish skins and cowhides. Marine collagen is a source of type I collagen and bovine collagen is made up of types I and III collagen. However, because 90% of our body is made from Type 1 collage, it is more effective for your anti-aging and beauty goals, and full body support.


Unlike most products on the market, which base their claims on general studies made with a whole range of different collagen products, we back our claims with clinical studies performed specifically on the marine collagen peptides used exclusively in all our products. This means that if you take the minimum required amount of our collagen daily for the required time (4 – 12 weeks), you will have the very best chance to achieve inner health for that outer glow that results from youthful, plump and healthy skin.

Marine collagen used in our revolutionary GLOW Elixir range is sourced from wild and sustainably farmed fish, thus not contributing to overfishing of our oceans. It is free from antibiotics and is tested to ensure there are no heavy metals, ensuring your spoonful of GLOW delivers a highly bioavailable, bioactive and clean product, safe for any age and stage of life.

We are an Australian made and owned company. Quality, transparency, honesty and sustainability are prioritised when formulating each Edible Earth Eco-luxe Elixir.

All our products are rigorously tested for all nasties and contain absolutely no artificial colours, flavours, fillers or preservatives. They are gluten, dairy, sugar, caffeine, and grain free, as well as being FODMAP friendly.

We are confident you will love our products and the benefits they bring, as much as we do! If you wish to obtain any further information about our products, please do not hesitate to reach out to our customer support team and we will assist as soon as we can.


Our mission is to offer a comprehensive and bespoke holistic range of edible beauty and wellness elixirs that are enhanced by our reset and radiate nutritional guide so you can transform at home or on the road, from anywhere in the world! They harness the power of potent natural and organic ingredients to cleanse, reset and restore inner beauty and wellness, one spoonful at a time.


Sarah Luisa has been interested in natural medicine and holistic health from a young age, and has always felt an innate desire to heal the world, through healing people first. Teaching women to heal themselves through the power of nutrition and nature as medicine. She studied a Bachelor of Health Science (Nutritional Medicine), however left before graduating so she could open a natural health clinic at the age of 25. It was one of the first Australian clinics to offer inner beauty and wellness solutions, offering services such as nutrition, naturopathy, osteopathy, remedial massage, and nature based facials. She felt the secret to eternal health and beauty was multi-dimensional, never advocating for the quick fix, miracle pill myth or latest fad diets that simply aren't healthy or sustainable.

Sarah has worked for more than 12 years in the field of holistic functional nutrition and natural health, yet reveals that she learnt more during her late fiancés heartbreaking battle with the most deadly terminal form of brain cancer, wild type, unmethylated, glioblastoma multiforme, the same brain cancer that also took the life of Lee's mother Denise Henderson. Her research into cancer treatments, trials, studies and preventative protocols from leading natural and conventional medical clinics around the globe taught her more than any degree could have.

Her work is now largely driven by preventing others from experiencing the pain and destruction that is caused by cancer and other chronic and deadly illnesses, as well as supporting and advocating for the research into brain cancer, which kills more children and adults under 40, than any other cancer. However is still heavily underfunded. This is why Edible Earth donates $1 from each order to the Charlie Teo Brain Cancer Foundation. Please join us on our mission.


We are proud as punch to offer pioneering formulations and the only holistic wellness and inner beauty transformations to the each and everyone of you, around the world. We believe in quality, honesty, and transparency when sourcing and formulating our elixirs, which is why they work.

We hope you will love our elixirs as much as we do. Please get in touch with us through our Contact page or our socials. We welcome and value your comments, feedback and suggestions.