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  1. Propanediol in Cosmetics: Is It Safe to Use? - Healthline

  2. Propanediol: The Skincare Ingredient Derms Want You to Know

  3. Propanediol: What Is It & Is It Safe In Skin Care Products ...

  4. Propanediol for Skin: Dangerous Additive or Helpful Solvent?

  5. 1,3-Propanediol - Wikipedia

  6. Propanediol in Skin Care: What It Is & Is It Safe? - Paula's Choice

  7. EWG Skin Deep® | What is PROPANEDIOL - Environmental …

  8. Propanediol (1,3 Propanediol): Cosmetic Ingredient INCI

  9. Propylene glycol - Wikipedia

  10. Propanediol (Explained + Products) - INCIDecoder