Ingredient review
Sodium Caproamphohydroxypropylsulfonate
INCI: Sodium Caproamphohydroxypropylsulfonate
A gentle, synthetic surfactant that effectively cleanses without stripping the skin's natural moisture barrier.
In plain English
This ingredient is a mild cleansing agent often found in soaps and shampoos. It helps lift away dirt, oil, and makeup while being less harsh than traditional sulfates, making it a good choice for sensitive or dry skin.
Review score
Safety, usefulness, and evidence
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
Quick decision guide
Useful, but context matters
Sodium Caproamphohydroxypropylsulfonate 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.
- Step 1Start with the score, then check the irritation and clogging risk before judging Sodium Caproamphohydroxypropylsulfonate.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- 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
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
moderateThere is useful support, but formula details and claim strength still matter.
What it is
Sodium Caproamphohydroxypropylsulfonate is a synthetic, amphoteric surfactant. Amphoteric means it can work well in both acidic and alkaline formulas, and it is known for being gentle on skin and eyes.
How it works
It reduces the surface tension between water and oil, allowing impurities to be rinsed away. Its mild charge helps it clean without disrupting the skin's protective barrier, reducing the risk of irritation.
Pros
Very gentle on skin
This surfactant is designed to clean without stripping natural oils, making it ideal for daily use on sensitive or reactive skin.
Low irritation risk
It has a low potential to cause stinging or redness, even around the eyes, so it's common in tear-free baby washes.
Cons and cautions
Synthetic origin
It is man-made, which may be a drawback for those seeking plant-based or naturally derived cleansers.
Potential for over-cleansing
In high concentrations or combined with other strong surfactants, it can still lead to dryness or barrier disruption.
Best for
- People with sensitive or dry skin
- Those looking for a sulfate-free cleanser
Use caution if
- Individuals who prefer exclusively natural ingredients
- Those with known allergies to amphoteric surfactants (rare)
Usage tips
Safety summary
Sodium Caproamphohydroxypropylsulfonate is considered safe for use in rinse-off cosmetics at typical concentrations. It has low skin and eye irritation potential and is not known to be comedogenic.
Research notes
Research on this specific surfactant is limited, but it belongs to a well-studied class of amphoteric surfactants known for mildness. Safety assessments by cosmetic ingredient review panels support its use in personal care products.
Common label clues
- Typical concentration
- 1% to 10%
- Regulatory status
- Approved for use in cosmetics in the US, EU, and other major markets. No specific restrictions beyond general cosmetic safety requirements.
- Common uses
- Facial cleansers, Body washes, Shampoos, Baby care products
- Environmental note
- As a synthetic surfactant, its biodegradability varies by formulation. Some studies suggest amphoteric surfactants can be less environmentally persistent than certain sulfates.
Good to know
- Often listed near the middle or end of ingredient lists, indicating moderate usage levels.
- It is not a sulfate (like SLS or SLES), so it is considered a sulfate-free alternative.
Common questions
What is Sodium Caproamphohydroxypropylsulfonate in beauty products?
This ingredient is a mild cleansing agent often found in soaps and shampoos. It helps lift away dirt, oil, and makeup while being less harsh than traditional sulfates, making it a good choice for sensitive or dry skin.
What does Sodium Caproamphohydroxypropylsulfonate do in a beauty product?
It reduces the surface tension between water and oil, allowing impurities to be rinsed away. Its mild charge helps it clean without disrupting the skin's protective barrier, reducing the risk of irritation.
Is Sodium Caproamphohydroxypropylsulfonate safe for most people?
Sodium Caproamphohydroxypropylsulfonate is considered safe for use in rinse-off cosmetics at typical concentrations. It has low skin and eye irritation potential and is not known to be comedogenic.
Who should be careful with Sodium Caproamphohydroxypropylsulfonate?
Individuals who prefer exclusively natural ingredients Those with known allergies to amphoteric surfactants (rare)
Research sources
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.