Thuja occidentalis, commonly known as Eastern Arborvitae or White Cedar, has found its way into some cosmetic formulations, although it is not a mainstream cosmetic ingredient. This report delves into the potential cosmetic facts associated with the use of Thuja occidentalis in skincare and cosmetic products.

Thuja occidentalis is believed to contain antioxidants that could offer protection against oxidative stress. Antioxidants play a crucial role in promoting skin health by neutralizing free radicals that contribute to premature aging. Extracts from Thuja occidentalis are often included in cosmetics for their perceived soothing and calming effects. This can be particularly beneficial for individuals with sensitive or irritated skin, providing relief and comfort. Some sources suggest that Thuja occidentalis may have anti-inflammatory effects. This property could contribute to reducing redness and inflammation on the skin, making it potentially useful in skincare formulations.

The extract may contribute to skin conditioning, leaving the skin feeling soft and smooth. This makes it a potential ingredient in moisturizers and skincare products focused on hydration. It has a history of use in traditional medicine for various purposes. Its incorporation into cosmetics may reflect the influence of traditional practices, adding a cultural and historical dimension to skincare formulations. 

Known for its astringent properties, Thuja occidentalis can help tighten and tone the skin. This may be advantageous in formulations targeting the reduction of visible pores and enhancing skin texture. The astringent nature of Thuja occidentalis suggests a potential for oil control, making it a candidate for products designed to address excess oil production and shine, especially in formulations for individuals with oily or combination skin. While Thuja occidentalis is not a widely recognized cosmetic ingredient, its inclusion in some formulations suggests a potential range of benefits, from antioxidant and anti-inflammatory properties to skin conditioning and astringency. As with any cosmetic ingredient, individual responses may vary, and further research is needed to substantiate specific cosmetic claims. Patch-testing and consultation with skincare professionals are recommended for those considering products containing Thuja occidentalis.