Collagen Clinical Studies



hydrolyzed collagen clinical studies | RenewAlliance
(1) An Overview of the Beneficial Effects of Hydrolyzed Collagen as a Nutraceutical on Skin Properties: Scientific Background and Clinical Studies; The Open Nutraceutical Journal, 2015; 8: 29-42.
(2) Oral Administration of (14)C Labeled Gelatin Hydrolysate Leads to an Accumulation of Radioactivity in Cartilage of Mice; Journal of Nutrition, 1999; 129(10): 1891-5.
(3) A Novel Micronutrient Supplement in Skin Aging: A Randomized Placebo-controlled Double-blind Study; Journal of Cosmetic Dermatology, 2005; 4
(4): 277-84. (4) Hydrolyzed Collagen & Skin Health Study YNTKK – 2008; Rousselot, France Anti-aging; 2009 corporate publication.



Taut Premium Collagen formulated for results | RenewAlliance
*Based on a double-blind, placebo-controlled, randomized 8-week clinical study with 73 women (ages 35-65 years) drinking 1 bottle of Taut every night for the first 8 nights, then every other night.
Individual results may vary. 


Increase in collagen intensity after drinking Taut Premium Collagen. Dermatologist tested. | RenewAlliance
*Facial images of a 60 year old woman drinking 1 bottle of Taut Collagen every night for the first 8 nights, then every other night


Taut Premium Collagen formula contains key active ingredients that have impressive body of scientific research and clinically tested.
Collagen Triple Helix | RenewAlliance
Hydrolyzed Collagen (Collagen Peptide)

1. An Overview of the Beneficial Effects of Hydrolysed Collagen as a Nutraceutical on Skin Properties: Scientific Background and Clinical Studies  
Sibilla S, Godfrey M et al, , London UK.3Dr. Anil Anti-Ageing and Parkfield Medical Centre, Birmingham, UK. The Open Nutraceuticals Journal, 2015, 8, 29-42.

2.The effect of oral collagen peptide supplementation on skin moisture and the dermal collagen network: 
J Cosmet Dermatol. 2015 Dec;14(4):291-301. doi: 10.1111/jocd.12174. Epub 2015 Sep 12.
3. Oral Supplementation of Specific Collagen Peptides Has Beneficial Effects on Human Skin Physiology: A Double-Blind, Placebo-Controlled Study
Proksch E et al., Dept. of Dermatology, University of Kiel, Kiel, Germany. Skin Pharmacol Phy., Aug. 2013; 27(1):47-55.

4. Collagen-derived dipeptide, proline-hydroxyproline, stimulates cell proliferation and hyaluronic acid synthesis in cultured human dermal fibroblasts
Ohara H et al., Food and Health R&D Laboratories, Meiji Seika Kaisha, Saitama, Japan. Journal of Dermatology, 2010 Apr; 37(4):330-8. 

5. Effects of Sizes and Conformations of Fish-Scale Collagen Peptides on Facial Skin Qualities and Transdermal Penetration Efficiency
Huey-Jine Chai et al., Dept. of Food Science, National Taiwan Ocean University, Keelung, Taiwan. Journal of Biomedicine and Biotechnology, Vol. 2010.
6. Collagen Hydrolysate Intake Increases Skin Collagen Expression and Suppresses Matrix Metalloproteinase 2 Activity
JOURNAL OF MEDICINAL FOOD J Med Food 14 (6) 2011, 618–624

7. Clinical Effects of Fish Type I collagen hydrolysate on skin properties
Hitoshi Matsumoto, et al., ITE Letters on batteries, new technologies and medicine, 2006.

8. Effects of Ingestion of Collagen Peptide on Collagen Fibrils and Glycosaminoglycans in Achilles tendon
Minaguchi Jun (Rakuno Gakuen University, Hokkaido, Japan) et al., 2005.

9. Identification of food-derived collagen peptides in human blood after oral ingestion of gelatin hydrolysates
Iwai K et al, Kyoto Prefectural University, Japan. Journal of Agricultural Food Chemistry, 2005 Aug 10; 53(16):6531-6.

10. Effect of the Collagen Peptide Drinks on the Elastic Properties of Facial Skin in Normal Volunteers 
Hayamizu Kosuke et al. Journal of New Remedies & Clinics, Japan, 2000; 49-9:867-873.

11. Oral Intake of Specific Bioactive Collagen Peptides Reduces Skin Wrinkles and Increases Dermal Matrix Synthesis 
a Department of Dermatology, University of Kiel, and b Collagen Research Institute, Kiel , and c Skin Investigation and
Technology, Hamburg , Germany; 

Hyaluronic Acid

1. Clinical Effects of Dietary Hyaluronic Acid on Dry, Rough Skin.  Sato T et al., Second Dermatology Division, Medical School, Toho University, Tokyo, Japan.  Aesthetic Dermatology, Vol. 12: 109-120, 2002.

2. Clinical Effects of Hyaluronic Acid Diet for Dry Skin. Osami Kajimoto et al, Osaka University of Foreign Studies, 2001.

3. Clinical effect on dry skin by oral administration of food containing microbial fermented Hyaluronic Acid. Takushi Yoshida et al, Q.P. Corporation Health & Nutrition R&D Center; Journal of New Remedies & Clinics, 2009.

Chondroitin Sulfate

1. Influence of chondroitin sulfate on collagen level gel structure and mechanical properties at physiologically relevant levels. Stuart K et al, Purdue University; Biopolymers Journal, 2008.

2. Influence of chondroitin sulfate and hyaluronic acid on structure, mechanical properties, and glioma invasion of collagen I gels.  Yang YL et al, Columbia University, Biomaterials Journal, 2011.


1. Double-Blind Study on Effects of Glucosyl Ceramide in Beet Extract on Skin Elasticity and Fibronectin Production in Human Dermal Fibroblasts. Hori M et al., Anti-Aging Medical Research Center, Graduate School of Life and Medical Sciences, Doshisha University, Kyoto, Japan. Anti-Aging Medicine Vol. 7 (2010) No. 11 P 129-142.

2. Ceramides and skin function. Coderch L et al, Instituto de Investigaciones Quimicas y Ambientales de Barcelona, Barcelona, Spain; American Journal of Clinical Dermatology, 2003.
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