Steareth-14: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 30, 2025
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We verify all information on this page using publicly available nomenclature standards from The Personal Care Products Council (PCPC), the European Commission's CosIng database and documentation provided directly by ingredient manufacturers. Our analysis is based on technical data from these sources to ensure accuracy and reliability.

What Is Steareth-14?

Steareth-14 is a synthetic ingredient made by attaching about fourteen units of ethylene oxide to stearyl alcohol, a fatty alcohol that can come from plant oils or sometimes animal fats. The result is a waxy, off-white solid that dissolves easily in water and oil, letting it mingle with many other cosmetic ingredients. Chemists began exploring this class of compounds in the mid-20th century as they searched for stable alternatives to traditional soaps, and Steareth-14 soon found favor for its reliable performance in modern creams and lotions. Production starts with purified stearyl alcohol, which is reacted under controlled heat and pressure with ethylene oxide in the presence of a catalyst. The finished material is then cooled, chipped or flaked and quality-checked for purity before shipment.

You will spot Steareth-14 on ingredient lists for facial cleansers, moisturizers, masks, anti-aging serums, exfoliating scrubs, micellar waters and even some hair conditioners. Formulators like it because it blends water and oil smoothly, keeps textures light and improves rinse-off.

Steareth-14’s Cosmetic Benefits/Uses

In skin and hair care formulas Steareth-14 performs two key jobs that improve both feel and function

  • Cleansing: By lowering surface tension it lifts away dirt, oil and makeup so they can rinse off easily leaving skin fresh without a tight sensation
  • Emulsifying: It binds water-based and oil-based ingredients into a uniform mixture preventing separation over time and giving products a smooth, stable texture that spreads evenly

Who Can Use Steareth-14

Steareth-14 is generally well tolerated by most skin types including oily, combination, normal and even many sensitive skins because it is used at low concentrations and rinses away cleanly. Those with highly reactive or compromised skin barriers should still be cautious since any surfactant can contribute to irritation if overused. The ingredient itself is chemically vegan friendly but stearyl alcohol can be sourced from either plants or animals, so strict vegans and vegetarians may want to confirm the origin with the manufacturer. Current safety data show no specific risks for pregnant or breastfeeding women when Steareth-14 is applied topically, yet this is not medical advice and anyone expecting or nursing should get a health professional’s approval before adding new products to a routine. Steareth-14 does not cause photosensitivity and there are no known concerns about using it in daylight or alongside sun exposure.

Potential Side Effects/Adverse Reactions

Side effects from topical Steareth-14 vary from person to person. The points below outline potential reactions, but most users experience none of them when the ingredient is formulated correctly.

  • Mild skin irritation such as stinging or burning
  • Temporary redness or itching
  • Contact dermatitis in individuals with specific sensitivities
  • Dryness or tightness if used in very high concentrations
  • Eye irritation if the product accidentally gets into the eyes

If any of these effects occur stop using the product and consult a qualified healthcare professional.

Comedogenic Rating

Rating: 1 / 5

Steareth-14 has a very low likelihood of clogging pores because its molecular size keeps it mostly on the surface of the skin and it rinses away easily. It is used at modest levels that are just high enough to emulsify or cleanse without leaving a heavy film. For that reason it is generally considered suitable for people who are prone to acne or breakouts, especially in rinse-off products. One point is still assigned rather than zero because any surfactant can, in theory, disrupt the skin’s balance if overused.

Formulas that pair Steareth-14 with heavy oils, waxes or other higher-rated ingredients could raise the overall comedogenic potential of the finished product, so the full ingredient list always matters.

Summary

Steareth-14 works mainly as a cleanser and an emulsifier. Its ethoxylated chain grabs onto both water and oil, letting it lift away dirt and makeup while keeping creams and lotions from separating. That dual action makes it a flexible helper in face washes, moisturizers, masks and even some hair care items.

The ingredient is reasonably popular because it performs reliably, blends with a wide range of raw materials and has a solid safety profile. It is not as trendy as plant-derived surfactants, yet it remains a quiet staple in many mainstream formulas.

Current research shows Steareth-14 to be low risk when used as directed, with irritation or pore clogging rarely reported. As with any new cosmetic product it is wise to patch test first to make sure your skin agrees with the full formula.

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