Collagen, Biotin and Vitamin C: study protocols
3 study groups took Collagen together with Biotin and Vitamin C. These are the doses the studies gave. They are not a recommendation.
Fewer than 5 study groups in one unit match, too few to draw the chart.
Commonly used together
3 of 3 study groups took Collagen, Biotin and Vitamin C with something else, but nothing that 3 or more different studies gave.
3 study groups
| Study | |||||
|---|---|---|---|---|---|
| A Collagen Supplement Improves Skin Hydration, Elasticity, Roughness, and Density: Results of a Randomized, Placebo-Controlled, Blind Study 2019 · verum group · Women aged 35–73 with healthy skin | 2.5 g | 50 mcg | 80 mg | 12 weeks | 36 |
| A Dermonutrient Containing Special Collagen Peptides Improves Skin Structure and Function: A Randomized, Placebo-Controlled, Triple-Blind Trial Using Confocal Laser Scanning Microscopy on the Cosmetic Effects and Tolerance of a Drinkable Collagen Supplement 2020 · test product (Elasten) · Women aged 40–70 years; healthy, without a stated skin disease | 2.5 g | 50 mcg | 80 mg | 12 weeks | 30 |
| Effects of a Combination of Water-Soluble CoenzymeQ10 and Collagen on Skin Parameters and Condition:Results of a Randomised, Placebo-Controlled,Double-Blind Study 2020 · test group · Healthy Caucasian women aged 40–65 with signs of skin aging | 4 g | 150 mcg | 80 mg | 12 weeks | 17 |