Article last updated: October 15, 2024
10-Hydroxystearic Acid, also known as Octadecanoic acid, 10-hydroxy-, is a fatty acid derivative that has found its niche in the world of cosmetics. This ingredient is primarily sourced from natural fats and oils, such as castor oil, which undergoes a hydrogenation process to yield this specific compound. Chemically, it is characterized by an 18-carbon chain with a hydroxyl group (-OH) attached to the 10th carbon, giving it unique properties that are beneficial for skin care.
The history of 10-Hydroxystearic Acid in cosmetics dates back to the mid-20th century when researchers began to explore the potential of fatty acids and their derivatives in skin care formulations. Initially, it was used in industrial applications, but its skin-conditioning and protecting properties soon caught the attention of cosmetic chemists. Over the years, it has become a staple in various skin care products, from moisturizers to protective creams.
The production of 10-Hydroxystearic Acid involves the hydrogenation of castor oil, followed by a hydrolysis process. This method ensures that the fatty acid retains its beneficial properties while being suitable for use in cosmetic formulations. The result is a versatile ingredient that can enhance the texture and efficacy of skin care products, making it a valuable addition to many cosmetic lines.
In this section, we will delve into the officially recognized cosmetic benefits and uses of 10-Hydroxystearic Acid:
10-Hydroxystearic Acid 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 used in cosmetic formulations, it can make your skin feel softer, smoother, and more supple. Essentially, it acts as a moisturizer, helping to keep your skin hydrated and preventing it from becoming dry and flaky. This is particularly beneficial for those with dry or sensitive skin types.
Another key benefit of 10-Hydroxystearic Acid is its ability to protect the skin. This ingredient forms a barrier on the skin’s surface, which can help shield it from environmental stressors such as pollution, harsh weather, and other external factors that can cause damage. By providing this protective layer, it helps to prevent moisture loss and keeps the skin looking healthy and radiant. This protective function is crucial for maintaining the skin’s overall integrity and resilience.
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).
10-Hydroxystearic Acid is generally considered safe for 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 10-Hydroxystearic Acid 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.
Adverse reactions to 10-Hydroxystearic Acid are relatively uncommon, but it is always prudent to conduct a patch test before widespread use to ensure there is no sensitivity or allergic reaction.
On the comedogenicity scale, 10-Hydroxystearic Acid scores a 2, which means it has a low to moderate likelihood of clogging pores. Individuals prone to acne, blemishes, or breakouts should be aware of this potential and monitor their skin’s response when using products containing this ingredient.
