SEKKISEI Brightening Cleansing Oil vs Kiehl's Since 1851 Midnight Recovery Botanical Cleansing Oil

ISOPROPYL MYRISTATE is an ester of isopropyl alcohol and myristic acid, commonly used in cosmetics for its emollient properties. It functions as a skin-conditioning agent, helping to soften and smooth the skin, while also serving as a binding agent that can enhance the texture and feel of formulations. Additionally, it is often utilized in fragrance and perfuming applications, contributing to the overall sensory experience of a product. Formulators may add ISOPROPYL MYRISTATE to improve the spreadability of products and to create a more luxurious feel on the skin.

Tocopherol, commonly known as Vitamin E or Alpha Tocopherol, is a fat-soluble antioxidant that plays a crucial role in protecting skin cells from oxidative stress caused by free radicals. Its antioxidant properties help to stabilize and preserve the integrity of cosmetic formulations, thereby enhancing their shelf life and effectiveness. Formulators often include Tocopherol in products to provide additional skin benefits, such as moisturizing and soothing properties, making it a popular choice in skincare and cosmetic products.

Squalane is a saturated derivative of squalene, a natural component of human sebum. It is commonly used in cosmetics as an emollient, which means it helps to soften and smooth the skin by forming a barrier that locks in moisture. This ingredient is favored by formulators for its lightweight texture and non-greasy feel, making it suitable for a variety of skin types. Additionally, squalane is known for its stability and long shelf life, which can enhance the overall formulation of cosmetic products.

Phenoxyethanol is a widely used cosmetic ingredient recognized for its role as a preservative. It helps to prevent the growth of bacteria, mold, and yeast in cosmetic formulations, thereby extending the shelf life of products and ensuring their safety for consumers. Formulators may add Phenoxyethanol to protect the integrity of the product and maintain its effectiveness over time, especially in water-based formulations where microbial growth is a concern.

CITRONELLOL is a naturally occurring compound found in various essential oils, particularly in citronella oil. It is primarily used in cosmetics for its perfuming properties, imparting a fresh, floral scent that enhances the overall fragrance profile of a product. Formulators may add CITRONELLOL to create appealing scents in formulations, as well as to mask undesirable odors from other ingredients. However, it is important to note that CITRONELLOL is subject to certain restrictions in cosmetic formulations due to its potential sensitizing effects, as indicated by its classification as a cosing-restricted ingredient.

Limonene is a naturally occurring compound found in the peels of citrus fruits, and it is commonly used in cosmetics primarily for its pleasant fragrance. As a fragrance-allergen, it can enhance the sensory experience of a product, making it more appealing to consumers. Formulators may add Limonene to impart a fresh, citrus scent, which can help mask the odors of other ingredients or enhance the overall olfactory profile of a formulation. However, it is important to note that Limonene can also act as a potential irritant for some individuals, which is why its use is often accompanied by caution in formulations.