Ingredient review
Sodium Lauraminopropionate
INCI: Sodium Lauraminopropionate
A gentle, amino acid-based surfactant that cleanses effectively without stripping the skin's natural moisture barrier.
In plain English
Sodium Lauraminopropionate is a mild cleansing ingredient made from lauric acid (found in coconut oil) and the amino acid beta-alanine. It helps remove dirt, oil, and makeup from skin and hair without causing dryness or irritation. Because it's so gentle, it's often used in products for sensitive skin or baby care.
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
- semi synthetic
- Evidence
- moderate
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Sodium Lauraminopropionate 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 Lauraminopropionate.
- 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 Lauraminopropionate is a surfactant derived from lauric acid (a fatty acid from coconut or palm kernel oil) and beta-alanine, an amino acid. It belongs to the class of amino acid-based surfactants, known for their mildness and compatibility with sensitive skin.
How it works
As a surfactant, it lowers the surface tension between water and oils, allowing them to mix so that dirt and excess sebum can be rinsed away. Its molecular structure is larger and less penetrating than harsher surfactants like sodium lauryl sulfate, which means it cleans without stripping the skin's natural oils or disrupting the moisture barrier.
Pros
Extremely gentle on skin
Its large molecular structure means it cleans without penetrating or irritating the skin barrier, making it ideal for sensitive or reactive skin types.
Helps maintain moisture
Unlike harsh sulfates, this surfactant does not strip natural oils, so skin feels soft and hydrated after cleansing rather than tight or dry.
Cons and cautions
Lower foam volume
It produces a creamy, low-foam lather that some users may perceive as less effective, even though it cleans just as well.
Higher cost
Amino acid surfactants are more expensive to produce, so products containing them often have a higher price point.
Best for
- People with dry, sensitive, or eczema-prone skin
- Anyone looking for a sulfate-free, gentle cleanser
Use caution if
- Those who prefer a rich, foamy lather may find it less satisfying
Usage tips
Safety summary
Sodium Lauraminopropionate is considered very safe for cosmetic use. It has low irritation and sensitization potential, and no significant toxicity concerns have been identified in standard safety assessments.
Research notes
Amino acid surfactants like Sodium Lauraminopropionate have been studied for their mildness and skin compatibility. Research shows they cause less protein denaturation and cell damage compared to traditional anionic surfactants, supporting their use in gentle formulations.
Common label clues
- Typical concentration
- 1–10% in rinse-off products
- Regulatory status
- Approved for use in cosmetics worldwide, including by the U.S. FDA and EU CosIng database, with no known restrictions.
- Common uses
- Facial cleansers, Body washes, Shampoos, Baby care products
- Environmental note
- Derived from renewable plant sources (coconut or palm kernel oil) and is biodegradable, though palm sourcing should be certified sustainable to minimize deforestation impact.
Good to know
- Sodium Lauraminopropionate is often listed alongside other amino acid surfactants in 'sulfate-free' formulations.
- It is considered biodegradable and more environmentally friendly than some traditional surfactants.
Common questions
What is Sodium Lauraminopropionate in beauty products?
Sodium Lauraminopropionate is a mild cleansing ingredient made from lauric acid (found in coconut oil) and the amino acid beta-alanine. It helps remove dirt, oil, and makeup from skin and hair without causing dryness or irritation. Because it's so gentle, it's often used in products for sensitive skin or baby care.
What does Sodium Lauraminopropionate do in a beauty product?
As a surfactant, it lowers the surface tension between water and oils, allowing them to mix so that dirt and excess sebum can be rinsed away. Its molecular structure is larger and less penetrating than harsher surfactants like sodium lauryl sulfate, which means it cleans without stripping the skin's natural oils or disrupting the moisture barrier.
Is Sodium Lauraminopropionate safe for most people?
Sodium Lauraminopropionate is considered very safe for cosmetic use. It has low irritation and sensitization potential, and no significant toxicity concerns have been identified in standard safety assessments.
Who should be careful with Sodium Lauraminopropionate?
Those who prefer a rich, foamy lather may find it less satisfying
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.