
Inside Supplement Regulation: Who's Checking What's in the Bottle
The FDA does not approve supplements before sale; companies carry the safety duty. A walk through the oversight file, from DSHEA to MedWatch alerts.
Skincare and haircare examined by formulation: which actives work at which concentrations, how long results take, and where topical treatment stops.

The FDA does not approve supplements before sale; companies carry the safety duty. A walk through the oversight file, from DSHEA to MedWatch alerts.

What dietary supplements are, how the law regulates them, and the questions to ask before you buy, explained without hype.

The brightening evidence covers 5 percent, the sebum work covers 2 percent, and the label rarely tells you which study your bottle is leaning on.

Two vehicle-controlled trials measured pigment, not promises — here is what a decade of niacinamide research does and does not support.

The NIH LiverTox database counts at least 100 published liver-injury cases linked to green tea extract, and Europe's food-safety agency flagged doses of 800 mg EGCG and above in 2018.

A ferritin below 15 micrograms per liter defines deficiency by the WHO's 2020 guideline — and a 2017 study found taking iron every other day absorbs more than taking it daily.