An aromatic shower sachet is a personal hygiene and aromatherapy device used to diffuse pleasant and therapeutic scents throughout a shower area when exposed to water or steam. The aromatic shower sachet utilizes a permeable enclosure containing a quantity of aromatic compound, a quantity of absorbent starch, a quantity of reactive base, and a quantity of acid catalyst homogenously mixed into water-reactive mixture. The water-reactive mixture is retained within the permeable enclosure such that water or water vapor may penetrate the permeable enclosure. The water reacts on-contact with the water-reactive mixture, releasing fragrances through the permeable enclosure.