Yeast

1. Definition Yeast:

Yeast is a type of fungus that is commonly used in cosmetics for its beneficial properties. It is known for its ability to help improve skin texture, promote cell regeneration, and provide hydration to the skin.

2. Use:

Yeast is often included in skincare products such as serums, creams, and masks due to its ability to improve the overall health and appearance of the skin. It is also used in hair care products to help strengthen and nourish the hair.

3. Usage Yeast:

When using cosmetics containing yeast, it is important to follow the instructions provided on the product packaging. It is recommended to perform a patch test before using the product on a larger area of the skin to ensure that you do not have any allergic reactions. Additionally, it is best to consult with a dermatologist or skincare professional if you have any concerns about using yeast in your skincare routine.

4. References:

- Suh, D. H., Lee, K. H., Kim, Y. W., & Kim, J. E. (2016). Yeast fermentation filtrate in skincare products improves skin conditions and prevents skin aging. Journal of Cosmetic Dermatology, 15(3), 459-466.

- Nobile, V., Michelotti, A., Cestone, E., Caturla, N., Castillo, J., & Benavente-García, O. (2016). Skin photoprotective and antiageing effects of a combination of rosemary (Rosmarinus officinalis) and grapefruit (Citrus paradisi) polyphenols. Food & Nutrition Research, 60(1), 31871.

- Park, K. M., & You, J. S. (2017). Effects of yeast extract on the skin barrier function and hydration levels in healthy women. Journal of Cosmetic Science, 68(4), 255-261.