Does sunscreen actually prevent skin aging?
Not a marketing claim — a randomized trial followed people for four and a half years.
Anti-aging & longevity
Separate well-supported skin-aging guidance from promising ideas that still need stronger human evidence.
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Collagen Supplements and Drinks: What the Evidence Actually Shows
Oral collagen peptides have a real, if modest, research base behind hydration and fine-line claims — but the strongest, least-biased trials find far less benefit than the marketing promises, and topical collagen can't reach your skin at all.
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Peptides in Skincare: What the Evidence Actually Shows
Peptide serums promise firmer skin by 'signaling' collagen production. Here's what the actual randomized trials found, why those studies are smaller than the marketing suggests, and how peptides really compare to retinoids and sunscreen.
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3 of 3 anti-aging & longevity articles
Anti-aging & longevityCollagen Supplements and Drinks: What the Evidence Actually ShowsJul 12, 2026 / 6 min read
Anti-aging & longevityPeptides in Skincare: What the Evidence Actually ShowsJul 12, 2026 / 5 min read
Anti-aging & longevityDoes sunscreen actually prevent skin aging?Jun 10, 2026 / 2 min read