The creators of the spiral tampon, Amanda Calabrese, right, and Greta Meyer. (Sequel) Amanda Calabrese and Greta Meyer had the idea to create a tampon with a helix-inspired shape in a product design ...
Menstrual products like tampons typically have an absorbency level listed on the side of their packaging. But until recently, that absorbency had never been measured with actual blood. Saline, a ...
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