What Is Disodium Capryloamphodiacetate?
Disodium Capryloamphodiacetate is a mild, water-soluble surfactant derived from caprylic acid, a fatty acid naturally present in coconut and palm oils. Chemically, it belongs to the amphoacetate family, meaning it carries both positive and negative charges that shift with pH. This dual nature helps it clean without stripping skin or hair of moisture.
The ingredient was introduced in the late 1970s as formulators searched for gentler alternatives to traditional sulfates. By reacting caprylic acid with amino acids, then neutralizing the mixture with sodium salts, chemists created a surfactant that lathers well yet remains kind to sensitive skin. Today large-scale production follows the same steps but relies on high-purity plant oils and closed-loop systems to curb waste.
You will most often find Disodium Capryloamphodiacetate in sulfate-free shampoos, baby washes, facial cleansers, body washes, micellar waters, bubble baths and shaving creams. It also shows up in hydrating sheet masks and leave-in conditioners where mild cleansing or foam enhancement is needed.
Disodium Capryloamphodiacetate’s Cosmetic Benefits/Uses
This versatile ingredient supports a wide range of product goals:
- Antistatic: Helps reduce static buildup in hair so strands lie smoothly and combing is easier
- Cleansing: Lifts away dirt, excess oil and product residue without over-drying skin or hair
- Foaming: Produces a rich, creamy lather that improves the sensory feel of washes and shampoos
- Hair Conditioning: Deposits a light conditioning film that leaves hair softer and more manageable
- Foam Boosting: Enhances the volume and stability of foam, allowing products to maintain their cushion during use
- Hydrotrope: Helps dissolve otherwise hard-to-mix ingredients, keeping formulas clear and stable
Who Can Use Disodium Capryloamphodiacetate
Because it is a mild amphoteric surfactant, Disodium Capryloamphodiacetate is generally well tolerated by all skin types including dry, oily, combination and sensitive skin. Its balanced charge lets it cleanse without the harshness that can aggravate reactive or eczema-prone complexions. There are no known concerns for acne-prone skin either, as the ingredient is lightweight and rinses away easily.
The compound is made from plant-derived fatty acids and amino acids, then neutralized with mineral salts, so it suits both vegetarians and vegans. No animal by-products are involved at any stage of production.
Current safety assessments indicate that products containing Disodium Capryloamphodiacetate are acceptable for people who are pregnant or breastfeeding when used as directed. This is not medical advice and anyone expecting or nursing should check with a healthcare professional before adding new personal care items just to be safe.
The ingredient does not make skin more sensitive to sunlight and has no documented effect on photosensitivity. It is also free of known endocrine disruptors and does not interfere with common topical actives like vitamin C or niacinamide.
Potential Side Effects/Adverse Reactions
Reactions to topical Disodium Capryloamphodiacetate vary from person to person. The effects listed below are only potential outcomes and most users will not experience them when the ingredient is formulated and used correctly.
- Mild skin irritation such as temporary redness or stinging
- Eye irritation if the product is accidentally rubbed into the eyes before rinsing
- Allergic contact dermatitis in individuals with a specific sensitivity to amphoacetate surfactants
- Dry hair or skin if the formula is left on for an extended period or used too frequently
If you notice any of these reactions discontinue use and seek guidance from a healthcare professional.
Comedogenic Rating
Rating: 0 / 5 (non-comedogenic)
Disodium Capryloamphodiacetate is entirely water-soluble and rinses away without leaving a greasy film that could block pores. It also has a small molecular size and does not deposit in follicular openings, so it poses virtually no risk of clogging. For these reasons it earns the lowest possible comedogenic score.
This makes the ingredient suitable for people prone to acne or frequent breakouts.
One extra point worth noting is that it can help lift off heavier emollients in a formula, indirectly reducing the chance of pore congestion from other ingredients.
Summary
Disodium Capryloamphodiacetate acts as a mild cleanser, foam booster, antistatic agent, hair conditioner and hydrotrope all in one. Its amphoteric nature lets it switch charge with pH, which means it attracts dirt and oil yet still feels gentle on skin and hair. By stabilizing and increasing foam it also improves the sensory experience of shampoos, body washes and facial cleansers.
While not as famous as sulfates or coco-amidopropyl betaine, it is steadily gaining popularity in sulfate-free and sensitive-skin lines because formulators appreciate its versatility and low irritation profile.
Current safety data show a very low risk of toxicity or sensitization when used as directed. Even so, skin can react unpredictably, so performing a simple patch test with any new product that contains Disodium Capryloamphodiacetate is always a smart move.