The vast majority of reactions to hair-dye products are caused by PPD. [4–6] In past years, PPD was used in permanent hair dyes but not in semipermanent dyes. More recently, PPD has been used in ...

Background: Finding alternative hair ... hair dye, and all tolerated these products. Conclusion: Fifty-seven percent of patients allergic to PPD in this study will likely tolerate newer permanent ...

Feb. 20, 2024 — The drug finasteride, also known as Propecia or Proscar, treats male pattern baldness and enlarged prostate in millions of men worldwide. But a new study suggests the drug may ...

Some parents say that red dye No. 3 in foods causes behavioral problems in their kids. (Photo illustration: Celina Pereira for Yahoo News; photos: Getty Images) ...

If shaving is growing tiresome, consider laser hair removal: This method damages hair follicles to reduce growth over time, ultimately giving more long-term results than using a razor. After ...

Katy is an avid beauty buff with extensive personal experience serving as an eager tester of brands large and small, drugstore and luxury, on behalf of family and friends alike. She's a Columbia ...

Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission. Taylor Leamey writes about ...

(NEXSTAR) – Pepsi is planning to debut a brand-new flavor this month, marking its first “permanent” addition to the brand’s beverage portfolio in four years. That last “permanent ...

Copyright 2025 The Associated Press. All Rights Reserved. Pez candy, which contains red dye no. 3, is on display at a store in Lafayette, Calif., March 24, 2023. (AP ...

The US Food and Drug Administration has banned the use of red dye No. 3 in food, beverages and ingested drugs, more than 30 years after scientists discovered links to cancer in animals ...

Made from petroleum, red dye 40 is a synthetic food dye. Some studies suggest a link between red dye 40 and ADHD behavior; the dye might trigger or exacerbate behavioral changes in sensitive children.