Hyaluronic Acid, Explained: What Molecular Weight Changes on the Label
Molecular weight decides where hyaluronic acid can travel in skin, per a 2016 Raman study. What the label promise can and cannot claim.
Beauty News
Beauty News files developments as they break: product launches worth attention, ingredient restrictions, contamination recalls, and regulatory decisions affecting cosmetics and sun protection. Each item explains what the substance does, who is exposed, and whether a bottle already on the shelf should be discarded.
Product launches, restrictions on ingredients, contamination recalls and regulator decisions in cosmetics, with the substance and the exposure explained.
The Retinoid Ladder: What the Strengths Actually Mean
Retinol is 20 times less potent than tretinoin because skin must convert it, per a 2006 review. The retinoid ladder, rung by rung, in trial evidence.
The FDA Proposed Standardized Asbestos Testing for Talc Cosmetics
A December 2024 proposed rule would require standardized testing of talc-containing cosmetics — the first federal method of its kind.
The Fragrance Line on Every Label: What MoCRA's Allergen Rule Will (and Won't) Change
A 2022 law requires FDA to make brands disclose fragrance allergens on cosmetic labels. Here's why "fragrance" still means undisclosed today, and how far the rule has actually gotten.
Estée Lauder and Puig Called Off the Year's Biggest Beauty Merger
The Estée Lauder Companies and Puig confirmed on May 21, 2026 that they terminated discussions on a potential combination that would have created a beauty group with roughly $20 billion in annual sales — a collapse that redraws the industry's consolidation math.
California's Packaging Law Went Live May 1: What It Asks of Beauty Brands
CalRecycle's final regulations under SB 54, the country's most sweeping packaging extended-producer-responsibility law, took effect May 1, 2026 — and cosmetics brands selling in California are counted among the producers who must join the system and report.