Stridex

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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 instead 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. Patients are advised to apply treatment with caution around lips, nose and mouth, or cuts and scrapes, and also avoid excessive sun exposure. 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 to do so without requiring a prescription for purchase and is part of the Smithsonian's permanent collection. [5] [6] In 1996, it was purchased by Blistex, Inc. [6] [7]

References

  1. ↑ USexpired 5879693A,Wolfe, David M.,"Individually packaged disposable single acne pad",published 1999-03-09,issued 1999-03-09, assigned to Circle Labs Inc
  2. ↑ USexpired 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. 1 2 "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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