According to Wikipedia, “the origin of Aleppo soap is unknown. It is commonly thought that the process of soap-making emanated from the Levant region (of which Aleppo is the main city) and to have moved west from there to Europe after the First Crusades.
Traditional Aleppo soap is made by the “hot process“.
Traditional Aleppo soap is made with olive oil, laurel berry oil (zeit ghar), water and lye, while the relative concentration of laurel oil (typically 2–20%) determines the quality and cost of the soap. Laurus nobilis, from which the berries come, is categorized as an underutilized species. As it is produced only from natural oils, Aleppo soap is also biodegradable.
In the 20th century, with the introduction of cold process soap making, Allepian soap artisans began introducing a variety of herbs and essential oils to their soaps.
Skin care properties
Aleppo soap can be used daily as soap for washing and shampooing, as face mask, as shaving cream, and for bathing infants and babies. Laurel oil is an effective cleanser, antimicrobial, antifungal and anti-itching agent.