Sodium Lauriminodipropionate

What is Sodium Lauriminodipropionate?

Sodium lauriminodipropionate is the sodium salt of an imidazoline derivative formed from lauric acid and amino acids, functioning as an amphoteric surfactant. This synthetic ingredient appears in rinse-off hair and body care products like shampoos, conditioners, and cleansers. It works by reducing surface tension to lift dirt and oils while providing conditioning effects through its dual cationic-anionic behavior, which neutralizes charges on hair for improved manageability. Its mild nature stems from balanced pH responsiveness, allowing effective cleansing with less disruption to the skin's barrier compared to harsher anionics. It also boosts foam quality and acts as an antistatic agent, smoothing flyaways and enhancing product spreadability during use.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Antistatic agent
Reduces static electricity and flyaways by improving surface conductivity, enhancing hair manageability and smoothness in conditioners and styling products.
Hair conditioning
Improves softness, shine, and manageability by reducing friction and static; commonly achieved with cationic agents, silicones, oils, or conditioning polymers.
Surfactant
Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.
Cleansing agent
Removes dirt, oil, and impurities by lowering surface tension and forming micelles, enabling soils to be lifted and rinsed away from skin, hair, or teeth.
Foam booster
Enhances foam volume and creaminess and can stabilize lather, improving sensory feel and perceived cleansing in shampoos and wash-off products.
Foaming
Generates foam during use to help distribute the product and lift soils; typically delivered by surfactants that create stable bubbles under agitation.

Benefits

Delivers gentle cleansing that removes impurities without harsh stripping.

Improves hair softness and shine by reducing friction and static.

Creates rich, stable foam for better product distribution and feel.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
People with sensitive scalps seeking mild wash-off formulas.
Those with known allergies to fatty acid derivatives.
Individuals with dry or frizzy hair needing conditioning cleansers.
People experiencing irritation from amphoteric surfactants.
Users preferring foam-rich shampoos for everyday cleansing.
Individuals sensitive to coconut-derived ingredients in rare cases.

Safety Notes

  • Rated low hazard by EWG, indicating minimal health concerns.
  • Recognized as safe for use in rinse-off cosmetics by cosmetic safety reviews.

Frequently Asked Questions about Sodium Lauriminodipropionate

What makes it mild?

Its amphoteric structure adapts to pH, cleansing effectively without high irritation.

Is it safe for daily use?

Yes, in rinse-off products at typical levels, per safety assessments.

Does it help with static hair?

Yes, as an antistatic agent, it improves smoothness and manageability.