Biotin Supplements: What the Evidence Supports for Hair and Nails
A 2017 review found biotin helps only with true deficiency and rare conditions. The FDA's warning about lab interference completes the picture.
Dietary Supplements
Beauty analyzes products at the level of the formula: active ingredient, concentration, delivery system and the evidence supporting each claim. Coverage spans skincare, sun protection, hair treatment and in-clinic procedures, with realistic timelines for visible change and clear notes on when a dermatologist is the better purchase.
Skincare and haircare examined by formulation: which actives work at which concentrations, how long results take, and where topical treatment stops.
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.
Dietary Supplements: What You Need to Know Before Buying
What dietary supplements are, how the law regulates them, and the questions to ask before you buy, explained without hype.
Niacinamide, Explained: What the Studies Support and What They Don't
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.
Niacinamide and Dark Spots: What the Clinical Trials Actually Show
Two vehicle-controlled trials measured pigment, not promises — here is what a decade of niacinamide research does and does not support.
Green Tea Extract and the Liver: Reviewing the Safety Reports Behind the Warning Labels
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.