Biotin, Vitamin E, Vitamin C and Zinc: study protocols
3 study groups took Biotin together with Vitamin E, Vitamin C and Zinc. 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 Biotin, Vitamin E, Vitamin C and Zinc 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 | 50 mcg | 2.3 mg | 80 mg | 3 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 | 50 mcg | 2.3 mg | 80 mg | 3 mg | 12 weeks | 30 |
| Improving neuropathy scores in type 2 diabetic patients using micronutrients supplementation 2011 · Group MVB · Patients with type 2 diabetes | 200 mcg | 100 mg | 200 mg | 20 mg | 120 days | — |