Ingredient review
Myristamidopropyl PG-Dimonium Chloride Phosphate
INCI: MYRISTAMIDOPROPYL PG-DIMONIUM CHLORIDE PHOSPHATE
A gentle conditioning ingredient that helps hair feel soft and skin feel smooth without heavy buildup.
In plain English
This is a conditioning agent that helps hair and skin feel soft and smooth. It works by lightly coating the surface, reducing static and friction. It's often used in products that aim to be gentle, like sulfate-free shampoos or mild facial cleansers.
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
Myristamidopropyl PG-Dimonium Chloride Phosphate 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 Myristamidopropyl PG-Dimonium Chloride Phosphate.
- 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 semi-synthetic quaternary ammonium compound derived from myristic acid (a fatty acid found in nutmeg and other plant oils) and modified with phosphate and propylene glycol groups. It is designed to be a mild, non-irritating conditioner.
How it works
Its positively charged head binds to the negatively charged surfaces of hair and skin, forming a thin, lubricating film. This reduces friction, static electricity, and water loss, leaving hair easier to detangle and skin feeling smoother.
Pros
Gentle conditioning
It provides a soft, smooth feel without the heavy buildup that some other conditioners can cause, making it ideal for daily use.
Low irritation potential
Its mild formula is less likely to cause stinging or redness, even on sensitive or compromised skin.
Cons and cautions
Lightweight may not be enough
For very dry, curly, or damaged hair, this ingredient alone may not provide enough moisture or slip.
Potential buildup
Like many conditioning agents, it can accumulate on hair over time, leading to dullness if not periodically removed with a clarifying shampoo.
Best for
- People with fine or normal hair who want light conditioning
- Those with sensitive skin or scalp looking for a gentle conditioner
Use caution if
- Individuals with very dry, coarse, or chemically damaged hair may need a richer conditioner
Usage tips
Safety summary
Myristamidopropyl PG-Dimonium Chloride Phosphate is considered safe for use in cosmetics at typical concentrations. It has low irritation and sensitization potential, making it suitable for sensitive skin. No significant safety concerns have been raised by regulatory bodies.
Research notes
Research on this specific ingredient is limited, but it belongs to a well-studied class of quaternary ammonium compounds used for conditioning. Studies on similar ingredients confirm their safety and efficacy at low concentrations. The Cosmetic Ingredient Review (CIR) has reviewed related quats and found them safe as used.
Common label clues
- Typical concentration
- 0.5% to 5%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and other major markets. No specific restrictions beyond general cosmetic safety requirements.
- Common uses
- Conditioners, Shampoos, Leave-in treatments, Body washes, Facial cleansers
- Environmental note
- As a semi-synthetic compound, its biodegradability is moderate. It is not known to be a major environmental concern at typical use levels.
Good to know
- This ingredient is often found in 'low-poo' or 'no-poo' hair care lines.
- It is compatible with many other conditioning agents and can help reduce the irritation potential of stronger surfactants.
Common questions
What is Myristamidopropyl PG-Dimonium Chloride Phosphate in beauty products?
This is a conditioning agent that helps hair and skin feel soft and smooth. It works by lightly coating the surface, reducing static and friction. It's often used in products that aim to be gentle, like sulfate-free shampoos or mild facial cleansers.
What does Myristamidopropyl PG-Dimonium Chloride Phosphate do in a beauty product?
Its positively charged head binds to the negatively charged surfaces of hair and skin, forming a thin, lubricating film. This reduces friction, static electricity, and water loss, leaving hair easier to detangle and skin feeling smoother.
Is Myristamidopropyl PG-Dimonium Chloride Phosphate safe for most people?
Myristamidopropyl PG-Dimonium Chloride Phosphate is considered safe for use in cosmetics at typical concentrations. It has low irritation and sensitization potential, making it suitable for sensitive skin. No significant safety concerns have been raised by regulatory bodies.
Who should be careful with Myristamidopropyl PG-Dimonium Chloride Phosphate?
Individuals with very dry, coarse, or chemically damaged hair may need a richer conditioner
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.