TL;DR Yes, niacinamide has real, replicated clinical evidence behind it — mostly for reducing hyperpigmentation, improving skin barrier function, and modestly reducing sebum production and acne lesions. The strongest data sits around 4–5% concentrations used twice daily for 8–
TL;DR Melatonin does help with sleep, but the effect is smaller than most people expect and works mainly by shifting your circadian timing
TL;DR Microneedling has genuine clinical evidence behind it for atrophic acne scars and general skin texture, with randomized trials showing meaningful improvement over
TL;DR Whoop's heart rate and heart rate variability (HRV) sensors are reasonably accurate at rest — validation studies put heart rate within
TL;DR Greens powders are concentrated blends of dehydrated vegetables, algae, and often added vitamins, probiotics, digestive enzymes, and antioxidant extracts. The evidence for
TL;DR Retinol works. It's a vitamin A derivative that your skin converts, in two enzymatic steps, into retinoic acid — the same
TL;DR For most healthy people, standard-dose fish oil (around 1 gram/day of EPA+DHA) does not meaningfully reduce heart attacks, strokes,
TL;DR The strongest cardiovascular evidence — like the Finnish KIHD cohort published in JAMA Internal Medicine (Laukkanen et al., 2015) — comes from traditional hot-
TL;DR For people without diabetes or prediabetes, continuous glucose monitors (CGMs) mostly show what researchers already knew: healthy bodies handle glucose within a
TL;DR If your vitamin D level is already adequate (roughly above 20 ng/mL, and most non-deficient people are), taking a supplement
TL;DR Topical L-ascorbic acid (the active form of vitamin C) has real, published evidence for reducing hyperpigmentation and improving overall skin tone,
TL;DR Several small randomized trials — most using standardized root extracts like KSM-66 or Sensoril at 240–600 mg/day for 8 weeks
The evidence, on Thursdays. No sponsored placements inside a verdict, ever.