Ingredient review
Dimethyl Myristamine
INCI: Dimethyl Myristamine
An effective emulsifier and surfactant for rinse-off products, but may cause mild irritation for sensitive skin.
In plain English
Dimethyl Myristamine is a synthetic ingredient that helps oil and water mix in cleansers and shampoos. It also helps remove dirt and oil from your skin and hair. Because it's a surfactant, it can be slightly drying or irritating for some people, especially if you have sensitive 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.
Main practical flags: irritation is moderate; clogging risk is low.
- Source
- synthetic
- Evidence
- moderate
- Irritation
- moderate
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Dimethyl Myristamine can be useful, but watch for some irritation potential.
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 Dimethyl Myristamine.
- 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
moderateCan bother some users, especially with frequent use, damaged skin, or strong companion ingredients.
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 tertiary amine derived from myristic acid (a fatty acid found in coconut oil). It acts as a surfactant and emulsifier in cosmetic formulations.
How it works
It reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. In cleansers, it helps lift dirt and oil from the skin so they can be rinsed away.
Pros
Effective emulsifier
Helps oil and water mix smoothly, improving the texture and stability of cleansers and shampoos.
Good cleansing power
Removes dirt, oil, and buildup effectively, making it useful for oily skin and hair types.
Cons and cautions
Potential irritation
Can cause mild stinging or dryness, especially for those with sensitive skin or eczema.
Limited safety data
Most safety data comes from rinse-off use; less is known about long-term effects in leave-on products.
Best for
- People with normal to oily skin looking for effective cleansers
- Those using rinse-off products like shampoos and body washes
Use caution if
- Individuals with very sensitive or compromised skin barriers
- Those prone to contact dermatitis or allergic reactions to amines
Usage tips
Safety summary
Generally safe for rinse-off use at low concentrations. Mild irritation risk for sensitive skin. Avoid contact with eyes.
Research notes
Limited peer-reviewed studies on this specific ingredient. Safety assessments rely on analog data from similar amines and industry guidelines.
Common label clues
- Typical concentration
- Typically used at 0.1–2% in rinse-off formulations
- Regulatory status
- Approved for use in cosmetics in the US (FDA) and EU (CosIng) at concentrations up to 2% in rinse-off products.
- Common uses
- Cleansers, Shampoos, Conditioners, Body washes
- Environmental note
- As a synthetic amine, it may have moderate biodegradability; check product labels for eco-friendly certifications.
Good to know
- Dimethyl Myristamine is not the same as Dimethyl MEA (DMAE), which is used for skin firming.
- It is often used in combination with other milder surfactants to reduce irritation.
Common questions
What is Dimethyl Myristamine in beauty products?
Dimethyl Myristamine is a synthetic ingredient that helps oil and water mix in cleansers and shampoos. It also helps remove dirt and oil from your skin and hair. Because it's a surfactant, it can be slightly drying or irritating for some people, especially if you have sensitive skin.
What does Dimethyl Myristamine do in a beauty product?
It reduces the surface tension between oil and water, allowing them to blend into a stable emulsion. In cleansers, it helps lift dirt and oil from the skin so they can be rinsed away.
Is Dimethyl Myristamine safe for most people?
Generally safe for rinse-off use at low concentrations. Mild irritation risk for sensitive skin. Avoid contact with eyes.
Who should be careful with Dimethyl Myristamine?
Individuals with very sensitive or compromised skin barriers Those prone to contact dermatitis or allergic reactions to amines
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.