Stridex

Stridex (originally spelled Stri-Dex) is an American acne treatment and prevention medicine, originally a registered trademark of Bayer Corporation.[1] It comes in the form of fibrous pads saturated with astringents.[2] Most products in the Stridex line contain as the active ingredient salicylic acid (0.5–2.5%); Stridex Power Pads contain benzoyl peroxide (2.5%), a nonprescription acne treatment medication.[3] However, they also warn about possible side effects: dryness of the skin, possible burning, and tingling. In 2013, the FDA started to investigate a possible link between benzoyl peroxide- and/or salicylic acid-based acne prevention medicine with hypersensitivity and anaphylactic reactions without calling off any products or placing warnings.[4]

Stridex was first released in 1959 by Lehn & Fink and was the first acne treatment pad which did not require a prescription for purchase. It is part of the Smithsonian's permanent collection.[5][6] In 1996, it was purchased by Blistex, Inc.[6][7]

References

  1. ^ US expired 5879693A, Wolfe, David M., "Individually packaged disposable single acne pad", published 1999-03-09, issued 1999-03-09, assigned to Circle Labs Inc 
  2. ^ US expired 6214362B1, Page, Darren L., "Cosmetic pad for removing low tension substances and applying cosmetics", published 2001-04-10, issued 2001-04-10, assigned to Individual 
  3. ^ Terrie, Yvette C. (12 May 2014). "Acne Vulgaris: The Most Common Dermatologic Disorder". Pharmacy Times. Vol. 80. Archived from the original on 19 June 2024. Retrieved 27 June 2025.
  4. ^ "FDA Adverse Events Reporting System (FAERS) - Potential Signals of Serious Risks/New Safety Information Identified by the FDA Adverse Event Reporting System (FAERS) between July – September 2013". US Food & Drug Administration. Archived from the original on 25 January 2018. Retrieved 27 June 2025.
  5. ^ "Stridex Regular Strength Pads". National Museum of American History. Smithsonian Institution. Archived from the original on 26 September 2023. Retrieved 27 June 2025.
  6. ^ a b "About Stridex". Stridex.cn. Retrieved September 17, 2025.
  7. ^ "Blistex acquires Stri-Dex acne line, Dairy Ease brand from Bayer". Insights. 18 March 1996. Retrieved 27 June 2025.
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