What Is Disodium Laureth-5 Carboxyamphodiacetate?
Disodium Laureth-5 Carboxyamphodiacetate is an amphoteric surfactant created from fatty alcohols that are usually sourced from coconut or palm kernel oil. Manufacturers first turn these oils into lauryl alcohol, then add ethylene oxide units to reach an average of five, giving the “Laureth-5” part of the name. The molecule is then reacted with chloroacetic acid and neutralized with sodium hydroxide, which adds the “carboxyampho” section and converts it into its final disodium salt form. The result is a water-soluble ingredient that balances mild cleansing power with skin-friendly properties.
Amphoteric surfactants like this one gained popularity in the 1960s when formulators looked for alternatives to harsher sulfates. Its ability to clean without stripping made it a favorite in baby shampoos and gentle face washes, and it has remained in use as brands move toward mild, sulfate-free formulas.
You will most often find Disodium Laureth-5 Carboxyamphodiacetate in shampoos, body washes, facial cleansers, bubble baths, micellar waters, makeup removers, and occasionally in lightweight conditioning sprays or leave-in hair treatments that need a touch of cleansing action.
Disodium Laureth-5 Carboxyamphodiacetate’s Cosmetic Benefits/Uses
This multitasking surfactant brings several perks to a formula
- Cleansing: Lifts away dirt, oil and product buildup while staying mild enough for sensitive skin and scalp
- Hair conditioning: Leaves a light, smooth feel on strands which helps reduce static and improve manageability after rinsing
- Foam boosting: Supports a rich, stable lather so products feel plush and rinse evenly
- Hydrotrope: Helps keep oil-based and water-based ingredients evenly mixed, allowing clear or low-viscosity products to stay stable without heavy thickeners
Who Can Use Disodium Laureth-5 Carboxyamphodiacetate
This ingredient is generally considered suitable for all skin and scalp types, including oily, dry, combination and sensitive. Its mild amphoteric nature means it cleans without overly stripping natural oils, which helps maintain the skin’s protective barrier. People with severely compromised or highly reactive skin should still proceed cautiously, as any surfactant can be a trigger in extreme cases.
Because the raw materials are plant derived (typically coconut or palm kernel oil) and no animal by-products are involved in standard production, Disodium Laureth-5 Carboxyamphodiacetate is appropriate for vegetarians and vegans, provided the finished product is certified cruelty free.
Current safety data indicate no specific risks for pregnant or breastfeeding women when the ingredient is used as intended in rinse-off or leave-on cosmetics. This is not medical advice, and anyone who is pregnant or nursing should review their skincare routine with a qualified healthcare professional before use.
The molecule does not make skin more sensitive to sunlight, so it is not considered a photosensitizer. It is also compatible with most other common skincare and haircare ingredients, giving formulators flexibility without increasing irritation potential.
Potential Side Effects/Adverse Reactions
Individual responses to topical ingredients can vary. The points below outline possible side effects that have been reported, though they remain uncommon when the ingredient is formulated and used correctly.
- Mild eye irritation if the product accidentally gets into the eyes
- Temporary scalp or skin dryness in people who are already prone to dehydration
- Redness or itching in individuals with an existing sensitivity to surfactants
- Very rare allergic contact dermatitis
If any discomfort, redness or swelling occurs discontinue use and consult a healthcare professional.
Comedogenic Rating
Rating: 0/5 (non-comedogenic)
Disodium Laureth-5 Carboxyamphodiacetate is a highly water-soluble surfactant that rinses away without leaving an occlusive film. It has no oily or waxy residues and is used at low levels in rinse-off products, which further limits any pore-clogging potential.
Because it scores a zero it is generally considered suitable for people prone to acne or breakouts.
Comedogenicity testing specific to this ingredient is limited but its structure and behavior match other amphoteric surfactants that also rate zero, supporting the assessment.
Summary
Disodium Laureth-5 Carboxyamphodiacetate is a mild multitasker that provides cleansing, hair conditioning, foam boosting and hydrotrope action by reducing surface tension so oils and water stay blended. Its amphoteric nature lets it lift away grime while keeping skin and scalp comfortable, and its light conditioning touch helps hair feel smoother after rinsing.
Although not a headline ingredient it appears in many gentle shampoos, facial cleansers and body washes because formulators value its dependable performance and low irritation profile.
Overall safety data show it to be low risk non-comedogenic and suitable for all skin types when used as intended. Still, trying a small patch before full use is always a sensible precaution.