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Cosmetic Peat Association
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Sulfur Compounds

Chemical Compounds
Also: S, sulphur, sulfur compounds
CAS: 7704-34-9
Molecular weight: 32.06 Da
Solubility: Various forms — organic sulfur is bound in humic matrix
Concentration in peat: 0.1–2% of dry mass

Sulfur is present in peat both as inorganic sulfate and as organic sulfur incorporated into the humic substance matrix. Sulfur-rich peats from specific geological sources have been traditionally valued in spa medicine for skin conditions.

Dermatological History

Sulfur has one of the longest histories in dermatological therapy, used for millennia for skin conditions including acne, scabies, seborrheic dermatitis, and fungal infections. Its presence in peat adds a keratolytic and antimicrobial dimension to peat-based treatments.

Cosmetic Relevance

Relevant primarily for scalp and skin conditions involving excess keratinization (dandruff, psoriasis, seborrheic dermatitis) and microbial involvement (acne, fungal infections). Sulfur content varies significantly by peat source, making origin an important factor for therapeutic applications.

Evidence & Claims

exhibits keratolytic (moderate)

Sulfur softens keratin and promotes desquamation of dead skin cells

gupta-2004 — Sulfur in dermatological therapy — keratolytic properties
exhibits antimicrobial (moderate)

Antifungal and antibacterial activity, historically used for skin infections

gupta-2004 — Antimicrobial properties of sulfur compounds