Open Wound Contraindication

While sphagnum moss has a long history of use in wound dressings, modern unsterilized peat preparations should not be applied to open wounds, cuts, or broken skin. Natural peat contains soil microorganisms including potential pathogens (Sporothrix, Clostridium) that pose infection risk when introduced to compromised skin.

Historical vs. Modern Context

The historical effectiveness of sphagnum wound dressings was due to the antimicrobial properties of fresh sphagnum moss in combination with its absorbency. This is distinct from processed cosmetic peat, which has been decomposed, stored, and processed without sterility controls. The two should not be conflated.

Practical Guidance

All peat cosmetic and therapeutic products should be applied only to intact skin. Patients with skin conditions involving open lesions (cracked psoriatic plaques, excoriated eczema) should consult a dermatologist before use. Products should carry appropriate warnings.