Camphor Oil, Formosan Ho-sho, Leaves (cinnamomum Camphora)

Camphor Oil, Formosan Ho-sho (CAS Number 8022-91-1) is an essential oil extracted from the leaves of Cinnamomum camphora, commonly known as the camphor laurel or camphor tree. This particular variety originates from Formosa (Taiwan) and is obtained through steam distillation or solvent extraction of plant material. The oil contains volatile organic compounds including camphor, eucalyptol (cineole), and other terpenes that contribute to its characteristic sharp, cooling aroma and distinctive flavor profile.

In the food industry, Camphor Oil, Formosan Ho-sho functions as a flavoring agent and flavoring adjuvant. It is used in very small concentrations in products such as beverages, confectionery, baked goods, and savory foods where its intense, minty-camphoraceous flavor is desired. The oil's potency means only trace amounts are typically required to achieve the desired sensory effect. It is also used in traditional and ethnic cuisines, particularly in Asian cooking applications.

According to FDA records, there have been zero adverse events reported in connection with Camphor Oil, Formosan Ho-sho, and no food recalls have been associated with this additive. The absence of reported adverse events in the FDA database suggests that food-grade use at typical flavoring concentrations has not generated safety concerns in the United States market.

It is important to note that camphor has a long history of use in traditional medicine and food applications across various cultures. However, the FDA has not granted this substance GRAS (Generally Recognized As Safe) status, which means it does not have blanket regulatory approval for unrestricted use in food. This does not necessarily indicate a safety concern; rather, it reflects that the additive has not undergone the formal GRAS petition and notification process with the FDA.

The volatile nature of essential oils means that most camphor compounds are metabolized and eliminated relatively quickly from the body. However, camphor ingestion in large quantities (beyond typical food flavoring uses) has been associated with toxicity in animal and human studies, including neurological effects. Food-grade applications use only trace amounts, making this risk negligible for normal consumption patterns.

In the United States, Camphor Oil, Formosan Ho-sho is not listed as a GRAS substance, meaning manufacturers using it as a food additive would typically do so under the Color Additives Amendment or as a food additive subject to FDA regulations for use at safe levels. The lack of GRAS status requires that manufacturers ensure appropriate safety justification for their intended use level.

The European Food Safety Authority (EFSA) and other international regulatory bodies have evaluated camphor and camphor-containing substances. Camphor oil derived from natural sources is listed in various pharmacopeias and food ingredient databases in Europe, though regulatory approval varies by specific application and concentration.

Scientific literature on Cinnamomum camphora essential oils has documented their chemical composition, antimicrobial properties, and traditional uses. Most safety data on camphor relates to pharmaceutical or excessive consumption scenarios rather than food flavoring applications. The distinction between therapeutic doses and food additive concentrations is critical when evaluating safety—flavoring applications use quantities orders of magnitude smaller than those showing adverse effects in toxicology studies.

The absence of reported adverse events in FDA databases across decades of use suggests adequate safety margins in current food applications.