Menthol vs Levomenthol
Menthol and levomenthol sit on pharmacy shelves looking nearly identical, yet their tiny molecular twist creates measurable differences in cooling strength, skin feel, and regulatory status. Knowing which one you are buying prevents wasted money, failed formulations, and even safety surprises. Both compounds trigger the TRPM8 cold-sensing ion channel, but levomenthol’s mirror-image purity gives it…