Peg-20 Tallate: 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 Peg-20 Tallate?

Peg-20 Tallate is a plant-derived ingredient made by reacting tall-oil fatty acids with around twenty units of ethylene oxide. Tall oil itself is a by-product of the wood-pulping industry, so this ingredient has roots in renewable forestry resources rather than petroleum. The resulting material is a waxy, water-loving compound that helps oil and water mix.

Chemists first explored ethoxylated tall-oil acids in the mid-20th century while searching for gentler surfactants to replace harsher soaps. Their mild cleansing ability and knack for stabilizing emulsions quickly caught the attention of cosmetic formulators. Today Peg-20 Tallate is produced in large reactors where purified tall-oil fatty acids are combined with carefully measured ethylene oxide under heat and pressure, then neutralized and filtered to meet cosmetic-grade purity standards.

You are most likely to spot Peg-20 Tallate in rinse-off cleansers, face and body washes, exfoliating scrubs, clay or sheet masks and lightweight lotions. It also shows up in makeup removers and two-phase micellar waters because it helps lift away dirt and makeup while keeping the formula uniform.

Peg-20 Tallate’s Cosmetic Benefits/Uses

Formulators reach for Peg-20 Tallate because it serves more than one practical purpose in a single ingredient

  • Cleansing: Its surfactant nature lowers the surface tension between water and oils, allowing grime, excess sebum and makeup pigments to be rinsed away easily without stripping skin
  • Emulsifying: Peg-20 Tallate keeps oil-based and water-based ingredients evenly dispersed, preventing separation so creams stay smooth and clear gels remain stable throughout their shelf life

Who Can Use Peg-20 Tallate

Peg-20 Tallate is considered gentle enough for most skin types. Oily and combination skin benefit from its cleansing power while normal skin enjoys its light touch. Sensitive or very dry skin can usually tolerate it thanks to its mildness, though formulas with high surfactant levels could leave these skin types feeling tight if other moisturising agents are not present.

The ingredient is plant derived because tall oil comes from pine tree pulp, and the ethoxylation step is synthetic but does not involve any animal substances so products containing Peg-20 Tallate are generally suitable for vegans and vegetarians. If you follow a strict cruelty free philosophy always verify a brand’s overall animal testing policy.

No specific warnings exist for pregnancy or breastfeeding; the ingredient is regarded as low risk in rinse-off and leave-on products. This is not medical advice and anyone who is pregnant or nursing should have a doctor review any skincare routine to be certain it aligns with individual health needs.

Peg-20 Tallate does not increase photosensitivity and there are no known ingredient conflicts that require special timing or sunscreen beyond the usual daily protection recommendation.

Potential Side Effects/Adverse Reactions

Responses to topical Peg-20 Tallate can differ from person to person. The effects below are possibilities rather than expectations; most users experience none of them when the ingredient is correctly formulated and used at typical cosmetic levels.

  • Mild skin irritation such as temporary redness or stinging, more likely on compromised or very sensitive skin
  • Dryness or tightness if the formula lacks adequate moisturisers and the product is used frequently
  • Allergic contact dermatitis in rare cases for individuals with specific sensitivities to fatty acid derivatives or polyethylene glycols
  • Eye discomfort if a cleanser containing Peg-20 Tallate gets into the eyes during rinsing
  • Trace contaminant concerns involving 1,4-dioxane residue from the ethoxylation process, normally addressed by reputable manufacturers through purification

If irritation or any adverse effect occurs stop using the product and consult a healthcare professional or dermatologist.

Comedogenic Rating

Rating: 1/5

Peg-20 Tallate dissolves easily in water, is used at low levels and is typically found in rinse-off formulas, so it does not sit on skin long enough to plug pores. Its structure behaves more like a cleanser than a heavy oil which keeps the risk of pore blockage minimal, earning it a cautious 1 instead of 0.

Most people who are prone to acne or breakouts can use it without noticing extra blemishes.

Formulas that also contain thick butters or waxes may still feel heavy, so assess the full ingredient list if you are very clog-prone.

Summary

Peg-20 Tallate is a plant based surfactant that cleanses by loosening oil and debris and emulsifies by locking water and oil together, helping products stay uniform from the first pump to the last.

It is not a buzzy label star but chemists like it for its mildness and versatility which is why it quietly appears in many washes, masks and light lotions.

The ingredient is regarded as safe when used as directed and most users tolerate it well. Still, patch test any new skincare product so you can catch personal sensitivities before applying it to your whole face.

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