Ingredient review

Disodium C12-14 Sec-Pareth-5 Sulfosuccinate

INCI: DISODIUM C12-14 SEC-PARETH-5 SULFOSUCCINATE

A gentle, synthetic surfactant that cleans effectively without the harshness of traditional sulfates.

beautyskincarecleanser

In plain English

This ingredient is a type of mild soap alternative. It helps water mix with oil and dirt so they can be rinsed away, but it's designed to be less irritating than stronger cleansers like sodium lauryl sulfate. You'll often find it in products labeled 'gentle' or 'for sensitive skin.'

Review score

Safety, usefulness, and evidence

4.0Good
4.0/ 5

Potentially useful with some tradeoffs

The evidence base is useful, but some claims depend heavily on the formula.

Risk flags are low for most users, though the finished product can still irritate.

Source
synthetic
Evidence
moderate
Irritation
low
Clogging risk
low
How reviews are scored

Quick decision guide

Useful, but context matters

Disodium C12-14 Sec-Pareth-5 Sulfosuccinate 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 Disodium C12-14 Sec-Pareth-5 Sulfosuccinate.
  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

A synthetic surfactant derived from fatty alcohols and sulfosuccinic acid, chemically modified to be milder on skin and eyes.

How it works

It lowers the surface tension of water, allowing it to penetrate oils and lift dirt from the skin. Its large molecular structure makes it less able to penetrate the skin barrier, which reduces irritation.

Pros

Mild on skin

Its large molecular structure makes it less likely to penetrate and irritate the skin barrier, making it suitable for sensitive skin.

Good foam quality

Produces a creamy, stable lather that feels pleasant during cleansing without being overly stripping.

Cons and cautions

Synthetic origin

It is manufactured in a lab, which may be a drawback for those who prefer exclusively natural ingredients.

Potential for slight dryness

With very frequent or prolonged use, some individuals may experience mild tightness or dryness.

Best for

  • People with normal to dry skin looking for a gentle daily cleanser
  • Those with sensitive skin who react to sodium lauryl sulfate

Use caution if

  • Individuals seeking 100% natural or plant-derived ingredients only

Usage tips

Use in rinse-off products like cleansers and shampoos, not leave-on formulas
Pair with moisturizing ingredients like glycerin or ceramides to maintain skin hydration

Safety summary

Considered safe for use in cosmetics at typical concentrations. Low irritation and sensitization potential, with no known carcinogenic or reproductive toxicity concerns based on current data.

Research notes

Studies and safety reviews (e.g., CIR panel) support its use as a mild surfactant. Evidence is moderate, with most data coming from industry safety assessments rather than independent clinical trials.

Common label clues

Typical concentration
1–10% in rinse-off products
Regulatory status
Approved for use in cosmetics in the US (FDA) and EU (CosIng) with no concentration restrictions for rinse-off products.
Common uses
Facial cleansers, Body washes, Shampoos, Baby care products
Environmental note
Synthetic surfactants can be slow to biodegrade; however, sulfosuccinates generally have lower aquatic toxicity than traditional sulfates.

Good to know

  • Often used in 'sulfate-free' formulations as a gentler alternative
  • Commonly found in baby shampoos due to its low eye-sting potential

Common questions

What is Disodium C12-14 Sec-Pareth-5 Sulfosuccinate in beauty products?

This ingredient is a type of mild soap alternative. It helps water mix with oil and dirt so they can be rinsed away, but it's designed to be less irritating than stronger cleansers like sodium lauryl sulfate. You'll often find it in products labeled 'gentle' or 'for sensitive skin.'

What does Disodium C12-14 Sec-Pareth-5 Sulfosuccinate do in a beauty product?

It lowers the surface tension of water, allowing it to penetrate oils and lift dirt from the skin. Its large molecular structure makes it less able to penetrate the skin barrier, which reduces irritation.

Is Disodium C12-14 Sec-Pareth-5 Sulfosuccinate safe for most people?

Considered safe for use in cosmetics at typical concentrations. Low irritation and sensitization potential, with no known carcinogenic or reproductive toxicity concerns based on current data.

Who should be careful with Disodium C12-14 Sec-Pareth-5 Sulfosuccinate?

Individuals seeking 100% natural or plant-derived ingredients only

Research sources

Cosmetic Ingredient Review (CIR) – Safety Assessment of SulfosuccinatesOpenPubChem – Disodium C12-14 Sec-Pareth-5 SulfosuccinateOpenEWG Skin Deep – Disodium C12-14 Sec-Pareth-5 SulfosuccinateOpen

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.