What it is
Sesamum indicum seed oil is the fixed oil obtained from the seeds of the sesame plant, rich in oleic and linoleic fatty acids and naturally occurring antioxidants such as sesamol and sesamin. In cosmetics it functions as an emollient and skin-conditioning agent that softens skin and can serve as a lipophilic solvent for oil-soluble ingredients. In sunscreens it acts as part of the oil phase rather than as a UV filter.
Safety & warnings
Sesame seed oil is generally well tolerated as a topical emollient. It is considered to have low to moderate comedogenic potential, so it may not suit those very prone to clogged pores. Sesame is a recognized food allergen, and topical exposure could be a concern for individuals with sesame allergy.
Origin & sourcing
Plant-derived; cold-pressed or refined from the seeds of Sesamum indicum, an oilseed crop widely cultivated across Asia and Africa.
History
Sesame is one of the oldest cultivated oilseed crops, and its oil has a long history of use in food and topical preparations across many cultures.
Questions everyone asks
Is sesame seed oil comedogenic?
It is generally rated as low to moderately comedogenic, so most people tolerate it well, but those very prone to clogged pores may prefer lighter oils.
Why is sesame oil used in sunscreen?
It serves as an emollient and part of the oil phase, softening skin and helping carry oil-soluble ingredients. It does not provide UV protection itself.