Food & additives
FDA’s Threshold of Regulation Proposal, Explained
Learn what FDA’s proposed threshold of regulation change could mean for food ingredients, how its exposure criteria work, and why it is not yet a final rule.
The Toxic Scan Journal
A closer look at
what you buy.
Practical guides to food labels, personal care, and everyday ingredients. A little more understanding before your next shop.
Explore the guides
54 guides to help you look closer
Food & additives
Rotisserie Chicken Food Safety: A Practical Guide
Learn how to transport rotisserie chicken, refrigerate it within the safe time window, store leftovers for 3 to 4 days, and reheat them to 165°F safely.
At home
Paradichlorobenzene: Read Deodorizer Labels Carefully
Learn how paradichlorobenzene appears in deodorizers and mothballs, what EPA's 2026 draft review found, and practical ways to reduce exposure at home.
Beauty & care
Triphenyl Phosphate in Nail Polish: 2026 Guide
California's new rule covers nail products with over 250 ppm TPHP. Learn what it means, how EU dates differ, and what exposure research does—and doesn't—show.
Food & additives
Dented Cans and Food Safety: When to Keep or Toss One
Learn which small can dents are usually safe, which damage can compromise a seal, and what to do with bulging, leaking, or suspicious canned food at home.
Food & additives
Aluminum Foil Food Storage: What to Know
Learn when aluminum foil can transfer metal to food, which foods to keep separate, and practical storage choices based on food-safety guidance from regulators.
Food & additives
Potassium Chloride in Food: How to Read the Label
Learn what potassium chloride does, what FDA’s 2026 salt-substitute rule changes, how to compare sodium and potassium on labels, and who should take care.
Beauty & care
Aluminum in Deodorant: What EU Limits Mean
Understand aluminum in deodorant and antiperspirant, what new EU limits change in 2027, what safety reviews say, and how to read product labels clearly.
Food & additives
Sucralose and the Gut Microbiome: 2026 Evidence
See what 2026 research found about sucralose and the gut microbiome, why studies disagree, and how to read E 955 on food labels with useful context today.
Food & additives
Potassium Bromate in Bread: A 2026 Label Guide
Learn why potassium bromate is used in bread, how U.S. and California rules differ, what labels reveal, and practical ways to compare baked goods safely.
Beauty & care
EU Fragrance Allergen Labels: 2026 Guide
Learn why EU cosmetic labels now name more fragrance allergens, how the 2026 transition works, and what linalool, limonene, and similar names mean in Europe.
Food & additives
Orange B and Citrus Red No. 2: What Changed
See why FDA revoked Orange B and proposed removing Citrus Red No. 2, where the dyes were allowed, and what the changes mean for food labels and shoppers.