Ppg-6-Decyltetradeceth-20: 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-6-Decyltetradeceth-20?

Ppg-6-Decyltetradeceth-20 is a liquid ingredient made by attaching six units of propylene oxide and about twenty units of ethylene oxide to a fatty alcohol called 2-decyl tetradecanol. The starting fatty alcohol usually comes from renewable plant oils such as coconut or palm. During manufacturing the alcohol first reacts with propylene oxide then with ethylene oxide in carefully controlled steps. This two-stage process gives the molecule a balanced mix of oil-loving and water-loving parts, which is why it works so well in skin and hair products.

The surfactant technology behind this ingredient took off in the late twentieth century when brands looked for milder alternatives to older cleansing agents. Chemists found that adding both propylene oxide and ethylene oxide chains reduced irritation while keeping good foam and texture. Since then Ppg-6-Decyltetradeceth-20 has become a staple in everyday cosmetics.

You will usually spot it in face washes, micellar waters, shampoos, body washes, bubble baths, exfoliating scrubs, makeup removers, sheet masks, light lotions and even some sunscreens. Its clear appearance and neutral scent let formulators slip it into products without changing color or smell.

Ppg-6-Decyltetradeceth-20’s Cosmetic Benefits/Uses

This versatile ingredient supports a formula in two main ways:

  • Cleansing – Its surfactant nature lifts away dirt, oil and makeup while creating a soft foam. Because the molecule is partly made with propylene oxide it feels less stripping than harsher sulfates, helping skin and hair stay comfortable after rinsing.
  • Emulsifying – The balanced oil-loving and water-loving sections help mix oils, butters and water into a smooth, stable blend. This keeps creams and lotions from separating and gives washes a pleasing, uniform texture.

Who Can Use Ppg-6-Decyltetradeceth-20

Ppg-6-Decyltetradeceth-20 is considered gentle enough for most skin types, including oily, combination, normal and dry. Its mild cleansing action makes it a solid choice for sensitive skin in well balanced formulas, though people with very reactive skin should still pay attention to the full ingredient list of a product before using it. It is not known to aggravate acne or eczema on its own.

The ingredient is typically sourced from plant oils then processed synthetically, so it is suitable for both vegans and vegetarians. No animal derived matter is required during production.

Current cosmetic safety data show no special warnings for pregnant or breastfeeding women when the ingredient is used in rinse-off or leave-on products at normal levels. This is not medical advice and anyone who is pregnant or nursing should check with a healthcare professional before starting a new skincare routine just to be safe.

Ppg-6-Decyltetradeceth-20 does not cause photosensitivity and will not make skin more prone to sunburn. It also has no known conflicts with common actives such as retinol, vitamin C or AHAs, allowing it to sit comfortably in multi-step routines.

Potential Side Effects/Adverse Reactions

Reactions to Ppg-6-Decyltetradeceth-20 vary from person to person. The points below list potential side effects that could occur even though most users will not experience them when the ingredient is used correctly in a finished product.

  • Mild skin irritation – rare itching or redness, most often in people with pre-existing sensitivity to surfactants
  • Eye stinging – temporary discomfort if the product accidentally gets into the eyes
  • Contact dermatitis – very uncommon allergic response presenting as a rash or swelling
  • Dryness with overuse – skin or hair may feel tight if a formula with a high level of the ingredient is used too frequently

If you notice any unexpected irritation or discomfort while using a product that contains Ppg-6-Decyltetradeceth-20 stop using it and consult a healthcare professional if symptoms persist.

Comedogenic Rating

Rating: 1 / 5

Ppg-6-Decyltetradeceth-20 is a highly water-soluble surfactant, so it rinses off skin without leaving behind heavy oily residues that could block pores. Its molecular structure is large and branched, making it unlikely to settle inside follicles where blackheads form. Because of this low residue profile, the ingredient receives a 1 rather than a perfect 0, simply to acknowledge that any surfactant can cause trouble in an unusually rich or badly balanced formula.

Suitable for acne-prone or breakout-prone skin in most well-formulated products.

One extra note: the overall comedogenicity of a product depends on the full recipe, not on a single ingredient. Heavy oils, waxes or silicone blends paired with this surfactant can raise the clogging potential of the finished item.

Summary

Ppg-6-Decyltetradeceth-20 serves mainly as a cleanser and emulsifier. The propylene oxide part loves oil while the ethylene oxide part loves water, letting the molecule surround dirt and makeup then lift them away with a quick rinse. The same split personality helps hold oil and water together so creams stay smooth and washes stay uniform.

You will find it in everything from budget face washes to mid-range micellar waters. It is not a headline act like hyaluronic acid yet formulators reach for it often because it does the behind-the-scenes work reliably and gently.

Current safety reviews show low irritation risk and no major long-term concerns at the levels used in cosmetics. Still, skin is personal so it is wise to patch test any new product that contains this or any other surfactant before adding it to your daily routine.

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