By Cosmetic Peat Editorial Team Updated June 2026
Peat Soap / Cleansing Bar
Therapies
Also known as: peat soap, moor soap, peat body wash
Method: topical
Duration: 1–3 minutes contact time
Frequency: Daily
Temperature: Room temperature to warm
Preparation: Cold-process or melt-and-pour soap with peat extract, peat paste, or humic/fulvic acid
Peat soap is a whole-body cleansing product incorporating peat extract or paste. Available as bar soap or liquid body wash. The simplest and most widely available peat cosmetic product in many markets. Short contact time limits therapeutic effect compared to leave-on products, but daily use provides consistent low-level exposure to peat bioactives.
Formulation Considerations
Conventional cold-process soap is alkaline (pH 9–10), which negates peat’s pH advantage. Syndet (synthetic detergent) bars or liquid formulations can maintain a skin-friendly pH. Peat’s natural color gives the soap a distinctive dark appearance that can be a marketing feature.
Claims
References
wollina-2009 — HA/FA antibacterial activity against skin pathogens relevant to acne
blonska-sikora-2024 — Review: peat pH compatibility with skin acid mantle in cosmetological applications
ansorg-1978 — HA antimicrobial spectrum including antifungal activity