Article last updated: October 15, 2024
Whey Extract, also known as Lactoserum or Milk Serum, is derived from whey, the liquid by-product left over after milk has been curdled and strained during the cheese-making process. This ingredient is rich in proteins, lactose, vitamins, and minerals, making it a nutrient-dense addition to various formulations. In the realm of cosmetics, Whey Extract is primarily recognized for its emollient properties, which means it helps to soften and smooth the skin.
Historically, whey has been used for centuries in various cultures for its health benefits, both internally and externally. Its journey into the cosmetic industry began as the benefits of its nutrient-rich composition became more widely understood. The proteins and vitamins found in whey were discovered to have moisturizing and skin-conditioning properties, making it a valuable ingredient in skincare products.
The process of making Whey Extract involves separating the whey from the curds during cheese production. This liquid is then filtered and purified to remove any impurities, resulting in a concentrated extract that retains the beneficial components of whey. This extract can then be incorporated into various cosmetic formulations, such as creams, lotions, and serums, to enhance their moisturizing and skin-softening effects.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Whey Extract:
Whey Extract is primarily known for its emollient properties. In simple terms, an emollient is a substance that helps to soften and smooth the skin. When you apply a product containing Whey Extract, it works by forming a protective barrier on the skin’s surface. This barrier helps to lock in moisture, making your skin feel softer and more hydrated. It’s particularly beneficial for those with dry or rough skin, as it can provide immediate relief and a smoother texture.
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).
Whey Extract is generally considered safe for topical use in cosmetic products. However, as with any ingredient, there are potential side effects and considerations to keep in mind:
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of Whey Extract during pregnancy are lacking. Therefore, it is advisable for pregnant or breastfeeding women to consult a healthcare professional for further advice before using products containing this ingredient.
Adverse reactions to Whey Extract are relatively uncommon, but it is always prudent to conduct a patch test before widespread usage to ensure there is no sensitivity or adverse reaction.
In terms of comedogenicity, Whey Extract has a rating of 1 on a scale of 0 to 5, where 0 is totally non-comedogenic and 5 is highly comedogenic. This low rating suggests that Whey Extract is unlikely to clog pores, making it suitable for individuals prone to acne, blemishes, or breakouts.
