Hydroxystearic acid is a versatile ingredient that offers numerous benefits for skincare and cosmetic formulations. It acts as a moisturizer by maintaining the skin’s lipid barrier, which helps retain hydration. Additionally, it improves the viscosity of formulations, enhancing their overall texture and application. As an emulsifying agent, hydroxystearic acid plays a crucial role in cleansing the skin by breaking down oils and impurities while keeping the skin nourished and smooth.
Hydroxystearic acid is a bio-derived fatty acid that has emulsifying properties allowing it to stabilize mixtures of oil and water seen in various skincare products.
Hydroxystearic acid is safe for all skin tones and skin types due to it’s non-comedogenic nature, gentle formulation, compatibility with other ingredients, and hydrating properties.
There are no known contraindications; however, some individuals can experience mild irritation. Patch testing is recommended prior to use.
Schütz R, Rawlings AV, Wandeler E, Jackson E, Trevisan S, Monneuse JM, Bendik I, Massironi M, Imfeld D. Bio-derived hydroxystearic acid ameliorates skin age spots and conspicuous pores. Int J Cosmet Sci. 2019 Jun;41(3):240-256. doi: 10.1111/ics.12529. PMID: 30955220; PMCID: PMC6852045.
Dr. Rohan Shah is a dermatology resident in training at Penn State’s Milton Hershey Department of Dermatology. His interests within dermatology include cutaneous oncology, skin of color therapies, medical innovation and hair loss. With a background in technology, Dr. Shah is an avid supporter of technology’s integration within the dermatology space and has published multiple papers on this topic. He is also passionate about clinical research in dermatology. In his free time, Dr. Shah enjoys fitness, playing basketball, traveling and trying new restaurants.