Ingredient review
Borageamidopropyl PG-Dimonium Chloride Phosphate
INCI: SODIUM BORAGEAMIDOPROPYL PG-DIMONIUM CHLORIDE PHOSPHATE
A gentle, borage-derived conditioning ingredient that helps soften hair and reduce frizz without heavy buildup.
In plain English
This ingredient is a modified version of borage oil, designed to stick to hair and provide slip, softness, and static control. It works like a lightweight conditioner, making hair easier to comb and less prone to flyaways. Because it's derived from borage seed oil (rich in gamma-linolenic acid), it also offers some moisturizing benefits for the hair shaft.
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
Borageamidopropyl 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 Borageamidopropyl 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 quaternary ammonium compound (a type of positively charged molecule) chemically bonded to a phosphate group and a borage oil derivative. This structure allows it to deposit onto negatively charged hair fibers, providing conditioning without excessive weight.
How it works
The positively charged portion of the molecule binds to the negatively charged surface of damaged or dry hair, forming a thin film that smooths the cuticle. This reduces friction between strands, making hair feel softer and look shinier. The borage oil component adds a light moisturizing effect, while the phosphate group helps the ingredient rinse out cleanly, minimizing buildup.
Pros
Lightweight conditioning
Provides slip and softness without the heavy, greasy feel of some oils or silicones, making it ideal for fine or low-porosity hair.
Derived from borage oil
Borage oil is rich in gamma-linolenic acid (GLA), a fatty acid known for its moisturizing and soothing properties, adding a nourishing touch to hair care.
Cons and cautions
Potential buildup on fine hair
Although designed to rinse clean, frequent use on very fine or low-porosity hair may still lead to slight accumulation over time, requiring a clarifying shampoo occasionally.
Semi-synthetic nature
The chemical modification process means it's not a purely natural ingredient, which may be a consideration for those seeking fully plant-based or minimally processed formulations.
Best for
- People with dry, damaged, or frizzy hair seeking lightweight conditioning
- Those who want a detangler that doesn't weigh down fine hair
Use caution if
- Individuals with very oily scalp or hair who prefer minimal conditioning
- Those strictly avoiding any synthetic or semi-synthetic ingredients
Usage tips
Safety summary
Considered safe for use in rinse-off and leave-on hair products at typical concentrations. Low irritation and comedogenic risk. No significant safety concerns reported in cosmetic use.
Research notes
Limited peer-reviewed studies specific to this ingredient, but quaternary ammonium compounds from plant oils are well-documented for their conditioning and antistatic properties. Borage oil's fatty acid content supports moisturizing claims.
Common label clues
- Typical concentration
- 0.5% to 3%
- Regulatory status
- Approved for use in cosmetics in the EU, US, and most major markets. No specific restrictions beyond general cosmetic safety requirements.
- Common uses
- Conditioners, Hair masks, Leave-in treatments, Shampoos
- Environmental note
- Borage is a sustainable crop, but the chemical processing to create this ingredient involves energy and reagents. Biodegradability data is limited, so environmental impact is moderate.
Good to know
- This ingredient is often found in 'low-poo' or co-washing products because it cleanses lightly while conditioning.
- Borage oil is also known as starflower oil, and its fatty acid profile is similar to evening primrose oil.
Common questions
What is Borageamidopropyl PG-Dimonium Chloride Phosphate in beauty products?
This ingredient is a modified version of borage oil, designed to stick to hair and provide slip, softness, and static control. It works like a lightweight conditioner, making hair easier to comb and less prone to flyaways. Because it's derived from borage seed oil (rich in gamma-linolenic acid), it also offers some moisturizing benefits for the hair shaft.
What does Borageamidopropyl PG-Dimonium Chloride Phosphate do in a beauty product?
The positively charged portion of the molecule binds to the negatively charged surface of damaged or dry hair, forming a thin film that smooths the cuticle. This reduces friction between strands, making hair feel softer and look shinier. The borage oil component adds a light moisturizing effect, while the phosphate group helps the ingredient rinse out cleanly, minimizing buildup.
Is Borageamidopropyl PG-Dimonium Chloride Phosphate safe for most people?
Considered safe for use in rinse-off and leave-on hair products at typical concentrations. Low irritation and comedogenic risk. No significant safety concerns reported in cosmetic use.
Who should be careful with Borageamidopropyl PG-Dimonium Chloride Phosphate?
Individuals with very oily scalp or hair who prefer minimal conditioning Those strictly avoiding any synthetic or semi-synthetic ingredients
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.