What does research say about marine collagen peptides?

Here you can find summary of some key researches concerning collagen:

Skin moisturisation

- In 2017, Seagarden Norway conducted a clinical dermatological study in which 20 women aged 40-55 used  Marine Collagen daily for 8 weeks. Marine Collagen was well tolerated and led to a significant 34.8 % increase in facial skin moisturisation on the face after 8 weeks of use. 

An extensive clinical studies investigated the effects of collagen peptide supplementation on the signs of skin ageing. 

Here is the summary: 

Skin’s collagen density

An intake of marine collagen peptides increased skin moisture levels by 12 % over a period of 8 weeks. A consistent increase in the skin's collagen density over 12 weeks was confirmed by increased dermal echogenicity(1). 

Anti-ageing effect on the skin

- In a 2013 clinical study, it was shown that consuming of marine collagen peptides improved skin elasticity, even after 4 weeks of follow-up in a group of women aged 35-55 years (2). 

Reduces wrinkles

- The same group of researchers also showed that an intake of collagen peptides had a positive impact on the body's own production of procollagen type I and elastin and a reduction in eye wrinkle volume in women aged 45-65 years (2).

Sources: 

1. Asserin, Jérome, et al. “The effect of oral collagen peptide supplementation on skin moisture and the dermal collagen network: evidence from an ex vivo model and randomized, placebo-controlled clinical trials.” Journal of cosmetic dermatology 14.4 (2015): 291-301.

2. Proksch, E., et al. “Oral intake of specific bioactive collagen peptides reduces skin wrinkles and increases dermal matrix synthesis.” Skin pharmacology and physiology 27.3 (2014): 113-119.