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#vitamin c

3 articles

Longevity

Evidence-Based Skincare: What Actually Works

What skincare is backed by research: sunscreen, retinoids, moisturizer, niacinamide and vitamin C. A short working routine instead of ten steps and marketing.

3 min read
A woman applying serum to her face
Supplements

Collagen Supplements: Do They Work and Who Benefits?

What happens to collagen after you swallow it, what the skin and joint research shows, how types and doses differ, and why protein plus vitamin C is often cheaper and just as good.

5 min read
Orange juice and sliced oranges
Immunity

Vitamin C and Colds: What the Research Shows

Vitamin C doesn't prevent colds in most people, but cuts their length by about 8%. We unpack the myths, doses, the absorption ceiling, and zinc.

8 min read