To provide the highest quality possible, we produce our Collagen exclusively from fish scales, presenting unmatched advantages. Studies show that hydrolyzed collagen derived from fish scales consists of small peptide molecules that have superior bio-availability and digestibility when compared with other collagen products. Due to their lower molecular weight, these peptides are absorbed at a higher level through the intestinal barrier into the bloodstream, where they are then carried through the body, leading to collagen synthesis in the joint tissues, bones and skin dermis.

withinUs TruMarine™ Collagen is characterized by its unique amino acid composition, having high concentrations of glycine, proline and hydroxyproline. The interaction and concentration of these three specific amino acids have nutri-functional properties that support health and beauty by stimulating cells throughout the body. Studies show that the amount of Pro-Hyp peptides absorbed into the bloodstream is significantly higher after ingestion of fish scale collagen than other forms of collagen.


Methodology: Placebo-controlled, independant, double-blind study on healthy women aged 40 - 54 years, who ingest either a placebo drink or a drink containing 5g or 10g of TruMarine™ Collagen peptide daily for 7 weeks.

Observations: Participants were examined by a licensed dermatologist at 3 weeks and 7 weeks. Wrinkles, pores, age spots and texture were objectively measured.*

Unmatched advantages over pills or capsules: 1-2 scoops (5-10 grams) of Ultra-Pure withinUs TruMarine™ Collagen equates to approximately 10-20 capsules a day.

*Koyama, Effects of collagen peptide ingestion on the skin. Shokuhin-To-Kaihatsu 44:10-12 (2009).


withinUs TruMarine™ Collagen is a bioactive ingredient that improves skin properties to achieve an optimal skin condition. Our product slows down the aging process by providing the body with the nutritional building blocks it needs. In particular, collagen contains much larger amounts of the amino acids glycine, proline and hydroxyproline than other proteins. These amino acids are necessary for promoting healthy tissue growth by the cells themselves. TruMarine™ Collagen is also highly digestible and is characterized by an improved bio-availability for optimal results.

ReNew5 Collagen embraces the benefits of “beauty from within.” Comprehensive clinical studies have been carried out that highlight the numerous positive effects of ingesting ReNew5 Collagen, including:

  • Increase in the water-absorbing capacity of the stratum corneum (the outermost layer of the epidermis)
  • Observed improvements to the skin
  • Reduction of UVB-induced skin damage
  • 10% difference in skin texture

Daily intake of ReNew5 Collagen peptide helps to reduce wrinkles
In a double-blind clinical trial 88 women aged 35-65 years were given 5g of TruMarine™ fish collagen or dextrin (placebo) once daily for 8 weeks, with 43 and 45 subjects included in each group. Before treatment and at 4 and 8 weeks of treatment, digital images of the face skin were analyzed by VISIA® Complexion Analysis (Canfield, USA) with multiple end points for facial skin parameters related to cutaneous aging. A daily diary and a subjective self-assessment questionnaire of facial skin condition were asked at 0, 4 and 8 weeks at the conclusion of the study. This test was performed by SOUKEN after approval of Ethical Review. 

The number of wrinkles decreased by 8% after ingesting of marine collagen peptide for 8 weeks, corresponding to a 4-year-younger appearance.