Article last updated: October 15, 2024
Yeast extract, also known as Faex in the EU, is a versatile ingredient derived from the same yeast used in baking and brewing. In the world of cosmetics, it goes by various names such as Yeast Extract (1), Yeast Extract (2), Yeast Extract (3), Yeast Extract (4), and Yeast Extract (5). Chemically, yeast extract is a complex mixture of proteins, amino acids, vitamins, and minerals, making it a nutrient-rich addition to skincare formulations.
The use of yeast extract in cosmetics has an interesting history. Initially, yeast was primarily utilized in the food and beverage industry for its fermentation properties. However, its potential in skincare was discovered when scientists noticed its beneficial effects on the skin. The ingredient gained popularity in the beauty industry for its skin conditioning and protecting properties, as officially recognized by the CosIng Database.
Yeast extract is produced through a process called autolysis, where yeast cells are broken down by their own enzymes. This method involves growing the yeast, then subjecting it to specific conditions that cause the cells to rupture and release their contents. The resulting mixture is then refined to obtain the extract used in cosmetic products. This process ensures that the beneficial components of yeast are preserved and made available for skincare applications.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Yeast Extract:
Yeast Extract is known for its skin conditioning properties. This means it helps to maintain the skin in good condition by improving its appearance and texture. When applied in cosmetic formulations, Yeast Extract can make your skin feel softer, smoother, and more hydrated. It works by enhancing the skin’s natural barrier function, which helps to retain moisture and keep the skin looking plump and healthy.
Another significant benefit of Yeast Extract is its skin protecting function. This involves shielding the skin from environmental stressors such as pollution, UV rays, and harsh weather conditions. By providing this protective barrier, Yeast Extract helps to prevent damage and maintain the skin’s overall health. This can be particularly beneficial for individuals with sensitive or easily irritated skin, as it helps to reduce the risk of inflammation and other skin issues.
Note: the listed benefits above are exclusively based on the officially recognized and defined functions of the ingredient, as documented by the International Nomenclature of Cosmetic Ingredients (INCI).
Yeast Extract is generally considered safe for topical use in cosmetics. However, as with any ingredient, there are potential side effects that users should be aware of:
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of Yeast Extract during pregnancy are lacking. Therefore, it is advisable for these individuals to consult a healthcare professional for further advice before using products containing this ingredient.
While adverse reactions to Yeast Extract are relatively uncommon, it is still recommended to perform a patch test before widespread usage to ensure there is no sensitivity or allergic reaction.
In terms of comedogenicity, Yeast Extract scores a 1 on a scale of 0 to 5, where 0 is totally non-comedogenic and 5 is highly comedogenic. This low score indicates that Yeast Extract is unlikely to clog pores, making it suitable for individuals prone to acne, blemishes, or breakouts.
