Topical vitamin C shows little added skin uptake or benefit in vitamin C–replete people.
Claim:
Topical vitamin C application improves skin outcomes even in people who already have adequate vitamin C levels.
MOSTLY BS
Topic
Vitamin C
4 claims checked
In non-deficient people, high-dose vitamin supplementation generally offers no added benefit.
Claim:
Consuming vitamins or other micronutrients (for example, vitamin C) at doses above healthy or recommended levels provides additional measurable health benefits.
TOTAL BS
High-quality evidence links vitamin C to improved cancer prognosis and incidence.
Claim:
Vitamin C has a negative effect on cancer outcomes.
TOTAL BS
Vitamin C does not reduce common cold incidence in the general population.
Claim:
Taking Vitamin C prevents the common cold.
TOTAL BS