Ingredient review

Beheneth-30 Phosphate

INCI: BEHENETH-30 PHOSPHATE

Beheneth-30 Phosphate is a gentle, synthetic surfactant that effectively cleanses and helps mix oil and water without stripping the skin.

beautyskincarecleansingemulsifier

In plain English

Beheneth-30 Phosphate is a man-made ingredient that helps cleansers and shampoos work better. It acts like a bridge between oil and water, so dirt and makeup rinse away easily. It's considered mild and less likely to dry out your skin compared to harsher cleansers.

Quick decision guide

Useful, but context matters

Beheneth-30 Phosphate is generally a lower-concern ingredient when the full formula suits your skin.

Plain-English read

Treat this as a practical screening step before you compare products that contain this ingredient.

  1. Step 1Start with the score, then check the irritation and clogging risk before judging Beheneth-30 Phosphate.
  2. Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
  3. Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.

Score terms in plain English

Irritation risk

low

Less likely to sting, burn, or bother most users, though sensitive skin can still react.

Clogging risk

low

Less likely to feel heavy or contribute to clogged pores for most skin types.

Evidence level

moderate

There is useful support, but formula details and claim strength still matter.

What it is

Beheneth-30 Phosphate is a phosphate ester derived from behenyl alcohol (a fatty alcohol from plants) and ethylene oxide. It belongs to a class of ingredients called surfactants, which reduce surface tension to help water and oil mix.

How it works

In a product, Beheneth-30 Phosphate surrounds oil droplets and dirt, allowing them to be lifted away by water. It also helps keep the formula stable, preventing ingredients from separating. Because it's a phosphate ester, it's often milder on skin than sulfate-based cleansers.

Pros

Mild on skin

Beheneth-30 Phosphate is less likely to cause dryness or irritation compared to traditional sulfates, making it suitable for daily use.

Effective emulsifier

It helps create stable, creamy formulas that rinse cleanly, improving the overall feel and performance of cleansers.

Cons and cautions

Synthetic production

It is manufactured through chemical processes, which may be a concern for those seeking exclusively natural ingredients.

Potential trace impurities

As an ethoxylated ingredient, it may contain trace amounts of 1,4-dioxane, though reputable manufacturers keep levels well within safety limits.

Best for

  • People with normal to dry skin looking for a gentle cleanser
  • Those who prefer sulfate-free or milder cleansing options

Use caution if

  • Individuals with known sensitivity to ethoxylated ingredients (rare)

Usage tips

Use in rinse-off products like facial cleansers or shampoos for best results.
Pair with other mild surfactants to create a balanced, non-stripping formula.

Safety summary

Beheneth-30 Phosphate is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. The main concern is trace impurities from ethoxylation, but these are tightly regulated and minimal in well-made products.

Research notes

Research on phosphate ester surfactants indicates they are mild and effective cleansers. The Cosmetic Ingredient Review has found similar ingredients safe. No major safety issues have been reported in peer-reviewed literature for this specific compound.

Common label clues

Typical concentration
1–10% in rinse-off products; lower in leave-on formulas
Regulatory status
Approved for use in cosmetics in the US (FDA), EU, and many other regions. The Cosmetic Ingredient Review (CIR) panel has reviewed similar phosphate esters and found them safe at typical concentrations.
Common uses
Cleansers, Shampoos, Body washes, Facial washes
Environmental note
As a synthetic surfactant, its biodegradability varies. Some phosphate esters are biodegradable, but check individual product claims for eco-friendly credentials.

Good to know

  • Beheneth-30 Phosphate is often found in 'sulfate-free' labels because it cleanses without sodium lauryl sulfate.
  • It can also function as a dispersant in some formulations.

Common questions

What is Beheneth-30 Phosphate in beauty products?

Beheneth-30 Phosphate is a man-made ingredient that helps cleansers and shampoos work better. It acts like a bridge between oil and water, so dirt and makeup rinse away easily. It's considered mild and less likely to dry out your skin compared to harsher cleansers.

What does Beheneth-30 Phosphate do in a beauty product?

In a product, Beheneth-30 Phosphate surrounds oil droplets and dirt, allowing them to be lifted away by water. It also helps keep the formula stable, preventing ingredients from separating. Because it's a phosphate ester, it's often milder on skin than sulfate-based cleansers.

Is Beheneth-30 Phosphate safe for most people?

Beheneth-30 Phosphate is considered safe for use in cosmetics at typical concentrations. It has low irritation and comedogenic potential. The main concern is trace impurities from ethoxylation, but these are tightly regulated and minimal in well-made products.

Who should be careful with Beheneth-30 Phosphate?

Individuals with known sensitivity to ethoxylated ingredients (rare)

Research sources

Cosmetic Ingredient Review (CIR) – Safety Assessment of Phosphate EstersOpenPubChem – Beheneth-30 PhosphateOpenFDA – Cosmetic Ingredient DirectoryOpen

Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.