New Algae-Based Menstrual Pad Could Improve Leak Prevention

Innovative algae-derived gel material offers improved leakage protection for menstrual products, turning period blood into a solid gel.

Researchers have unveiled a groundbreaking algae-based menstrual pad prototype that promises to tackle the persistent issue of leaks. The new pad utilizes an alginate-based powder derived from algae to convert menstrual blood into a gel, potentially providing superior leakage protection compared to traditional products.

Developed by a team led by chemical engineer Rogério Aparecido Bataglioli at Virginia Tech, the alginate material shows significant promise. Alginate, a natural polysaccharide found in seaweed, has been combined with glycerol to enhance its blood-absorbing properties. Tests comparing this alginate-glycerol formula with conventional materials demonstrated that the new gel-based pads leaked less under compression.

Traditional menstrual pads rely on cellulose-based materials for absorption, but leakage remains a common problem. The new alginate-based powder outperformed both commercial cellulose fillers and polyacrylate, a widely used superabsorbent polymer, in reducing leaks. The researchers also tested the material in menstrual cups, finding it made removal and cleaning more efficient by solidifying the blood into a gel.

Despite promising results, the study's use of defibrinated pig blood, which lacks clotting proteins found in menstrual blood, may limit the applicability of the findings. Nonetheless, the development signals a significant advance in menstrual product technology and highlights the need for continued innovation in menstrual care.