Ingredient review
C12-14 Alkyl Diaminoethylglycine HCl
INCI: C12-14 ALKYL DIAMINOETHYLGLYCINE HCL
A gentle cleansing agent that also helps keep products fresh, but it's not a standalone preservative.
In plain English
This ingredient is a mild soap-like molecule that helps cleansers foam and remove dirt while also discouraging bacteria and mold growth. It's often added to formulas to reduce the need for harsher preservatives or stronger surfactants.
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
C12-14 Alkyl Diaminoethylglycine HCl 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 C12-14 Alkyl Diaminoethylglycine HCl.
- 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
A synthetic amino-acid-derived surfactant with antimicrobial properties, typically used in combination with other cleansers.
How it works
It lowers the surface tension of water to lift oil and dirt from skin, and its positively charged head group can disrupt microbial cell membranes, acting as a preservative booster.
Pros
Gentle cleansing
Provides effective dirt and oil removal without stripping the skin's natural moisture barrier, making it suitable for daily use.
Preservative support
Reduces the amount of traditional preservatives needed, which can be beneficial for those with sensitive skin.
Cons and cautions
Limited function alone
It is not a standalone preservative and must be paired with other preservatives to ensure product safety.
Potential for irritation at high levels
While generally mild, concentrations above 1% may cause slight dryness or irritation in some users.
Best for
- People with normal to combination skin looking for a gentle cleanser
- Those who prefer products with fewer harsh preservatives
Use caution if
- Individuals with known sensitivity to alkyl surfactants (rare)
Usage tips
Safety summary
Considered safe for use in rinse-off cosmetics at typical concentrations. Mild on skin and eyes, with low irritation and comedogenic potential. Not a primary preservative.
Research notes
Studies show effective antimicrobial activity against common bacteria and fungi when used as a booster. Human patch tests indicate low irritation potential. More research is needed on long-term environmental fate.
Common label clues
- Typical concentration
- 0.1% to 1.0% in rinse-off products
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets at concentrations up to 1% in rinse-off products.
- Common uses
- Facial cleansers, Body washes, Shampoos
- Environmental note
- Synthetic origin; biodegradability data is limited, but amino-acid-based surfactants generally have lower environmental impact than traditional sulfates.
Good to know
- This ingredient is often listed near the end of an ingredient list due to low usage concentrations.
- It is compatible with both anionic and nonionic surfactants.
Common questions
What is C12-14 Alkyl Diaminoethylglycine HCl in beauty products?
This ingredient is a mild soap-like molecule that helps cleansers foam and remove dirt while also discouraging bacteria and mold growth. It's often added to formulas to reduce the need for harsher preservatives or stronger surfactants.
What does C12-14 Alkyl Diaminoethylglycine HCl do in a beauty product?
It lowers the surface tension of water to lift oil and dirt from skin, and its positively charged head group can disrupt microbial cell membranes, acting as a preservative booster.
Is C12-14 Alkyl Diaminoethylglycine HCl safe for most people?
Considered safe for use in rinse-off cosmetics at typical concentrations. Mild on skin and eyes, with low irritation and comedogenic potential. Not a primary preservative.
Who should be careful with C12-14 Alkyl Diaminoethylglycine HCl?
Individuals with known sensitivity to alkyl 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.