Winter can raise questions about vitamin D levels and skin care as sun exposure decreases and colder conditions affect the skin. Dr Luke Ong explains who may be at greater risk of vitamin D deficiency, how to care for the skin during winter and what the evidence says about collagen supplements.
Key Points
- Vitamin D is produced when skin is exposed to UV radiation and people with naturally darker skin may require more UV exposure to produce adequate levels because melanin affects UV penetration.
- Vitamin D levels can fall during winter as people spend less time outdoors and expose less skin to sunlight.
- Dr Luke Ong discusses winter skin concerns including dryness and acne, as well as current evidence around collagen supplements and skin health.
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