Ppg-3-Laureth-9: 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: July 1, 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 Ppg-3-Laureth-9?

Ppg-3-Laureth-9 is a man-made liquid ingredient created by reacting lauryl alcohol, a fatty alcohol that can come from coconut or palm oil, with measured amounts of ethylene oxide and propylene oxide. The result is a mild surfactant that carries three propylene glycol units and nine ethylene glycol units, giving it good balance between oil-loving and water-loving parts. Chemists first explored these kinds of blended surfactants in the 1970s as gentler options to the harsher cleansers of the time, and Ppg-3-Laureth-9 soon found a place in personal care formulas for its reliable performance.

Production happens in closed reactors where lauryl alcohol is treated with propylene oxide, then ethylene oxide, under heat and pressure. After the reaction is complete the mixture is purified and checked for residual solvents before being shipped as a clear to pale yellow fluid.

You will most often see Ppg-3-Laureth-9 in rinse-off products such as shampoos, body washes and facial cleansers. It also appears in micellar waters, makeup removers, sheet masks and light lotions where a gentle cleansing or emulsifying action is needed without stripping the skin.

Ppg-3-Laureth-9’s Cosmetic Benefits/Uses

Ppg-3-Laureth-9 adds two key actions to a formula, helping products feel pleasant while performing well.

  • Cleansing: Its surfactant nature lifts away dirt, oil and leftover makeup so they can be rinsed off easily. Because it is milder than many sulfates it helps reduce the tight, squeaky feel some cleansers leave behind.
  • Emulsifying: It brings water and oil parts of a formula together, keeping creams, lotions or micellar solutions stable. This helps deliver consistent texture, prevents separation and lets active ingredients spread evenly over the skin.

Who Can Use Ppg-3-Laureth-9

Ppg-3-Laureth-9 is gentle enough for most skin types including normal, oily, combination and even sensitive skin because it cleans without harsh stripping. People with very dry or compromised skin may want to pair it with richer moisturizers since any surfactant can remove some natural oils over time. The ingredient is generally plant derived or fully synthetic so it contains no animal components, making it suitable for vegans and vegetarians. Current safety assessments show no specific risks for women who are pregnant or breastfeeding; absorption through intact skin is minimal. Still, this is not medical advice and anyone who is pregnant or nursing should have a doctor review their routine to be safe. Ppg-3-Laureth-9 is not known to increase photosensitivity and it can be used in daytime products without extra sun precautions.

Potential Side Effects/Adverse Reactions

Side effects from topical Ppg-3-Laureth-9 vary from person to person. The points below list potential reactions, though most users will not experience these if the ingredient is used at typical cosmetic levels.

  • Mild skin irritation or redness, especially on very sensitive skin
  • Temporary dryness or tightness when used in high concentration or without follow-up hydration
  • Eye stinging if the formula accidentally gets into the eyes
  • Rare allergic contact dermatitis marked by rash or itching

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

Comedogenic Rating

Rating: 1/5. Ppg-3-Laureth-9 is a small, water-soluble surfactant that readily rinses off skin so it is unlikely to build up inside pores and create blockages. Its molecular structure is more attracted to water than to skin sebum which further limits pore-clogging potential. For people prone to acne it is generally considered safe to use. Because this ingredient is most often found in wash-off products any brief contact time lowers the chance of residue that could contribute to breakouts.

Summary

Ppg-3-Laureth-9 works primarily as a gentle cleanser and an emulsifier. Its balanced mix of propylene glycol and ethylene glycol units lifts away oil and grime while helping water and oil phases stay blended so formulas stay smooth and stable. Although not a headline ingredient it appears in a steady range of shampoos micellar waters and lightweight lotions where mild cleansing is desired.

Current safety data show it has low irritation risk when used at normal cosmetic levels and it carries minimal concerns for long-term health. As with any new skincare item it is smart to patch test first to make sure your skin agrees with the full formula.

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