Collagen, Vitamin E and Vitamin C: study protocols
3 study groups took Collagen together with Vitamin E 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
2 of 3 study groups took Collagen, Vitamin E and Vitamin C with something else, but nothing that 3 or more different studies gave.
3 study groups
| Study | |||||
|---|---|---|---|---|---|
| The Sustained Effects of Bioactive Collagen Peptides on Skin Health: A Randomized, Double-Blind, Placebo-Controlled Clinical Study 2025 · treated intervention group · Healthy women aged 35–55 years | 5 g | 580 mcg | 12.6 mg | 12 weeks | 41 |
| 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 | 2.3 mg | 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 | 2.3 mg | 80 mg | 12 weeks | 30 |