CONDITIONING AGENT
Behentrimonium Chloride
- conditioning agent
A positively charged conditioning agent that binds to damaged, negatively charged spots on the hair. It is the main detangling ingredient in most rinse-out conditioners.
- products in our library
- 1444
- of researched products
- 21%
- on the label, in our conditioners
- usually #4
- most common in
- Conditioner
- in water
- Water-dispersible
At a glance
Four things worth knowing about how this ingredient behaves on hair.
How much of it is left on hair between washes.
What it takes to get it off the hair again.
Whether hair pulls it in or pushes it away, read from its charge.
How much easier it makes a comb pass.
| Property | Level | Out of |
|---|---|---|
| Buildup risk | Low | 2 of 5 |
| Rinse-out behaviour | Stays where hair is damaged | 2 of 5 |
| Adhesion | Clings to damage | 5 of 5 |
| Slip | High | 5 of 5 |
What it does for a formula
What Behentrimonium Chloride does
The general function first, then how the role changes by product type where we have researched it.
Positive charge is drawn to the negatively charged, worn patches of a strand.
The measurable part of conditioning: less force to pull a comb through.
Positive charge holds it on the hair through the rinse.
It does not truly dissolve, and ordinary shampooing removes it.
Charge
Positively charged, so it is drawn to the negatively charged, damaged areas of hair and stays behind after rinsing. That is why conditioning happens where the wear is.
Solubility
Spreads through water without truly dissolving, and normal shampooing removes it.
Where it appears
Where it appears
One row per product category in our library: how many products list it, what share of that category that is, and where it typically sits on the label.
| Product type | How common | Typical position on label ? |
|---|---|---|
Conditioner
665 products
|
supporting · #4 | |
Mask / treatment
303 products
|
supporting · #5 | |
Leave-in
235 products
|
supporting · #6 | |
Styler: curl cream
53 products
|
supporting · #7 | |
Heat protectant
42 products
|
secondary · #9 | |
Co-wash
37 products
|
supporting · #5 | |
Styler: smoothing cream
20 products
|
supporting · #6 | |
Finisher: serum
14 products
|
secondary · #9 | |
Shampoo
14 products
|
secondary · #9 | |
Scalp treatment
12 products
|
supporting · #5 |
10 more product types
| Product type | How common | Typical position on label ? |
|---|---|---|
Styler: mousse
10 products
|
secondary · #9 | |
Styler: gel
7 products
|
secondary · #17 | |
Styler: lotion
6 products
|
supporting · #7 | |
Styler: refresh spray
6 products
|
supporting · #5 | |
Styler: volumizer
6 products
|
secondary · #10 | |
Finisher: anti frizz finish
4 products
|
supporting · #7 | |
Finisher: shine spray
4 products
|
supporting · #8 | |
Finisher: oil
3 products
|
secondary · #11 | |
Styler: hairspray
2 products
|
secondary · #11 | |
Styler: texture spray
1 product
|
secondary · #10 |
| Product type | Products | Share of category | Median position | Earliest position | Band |
|---|---|---|---|---|---|
| Conditioner | 665 | 59% | 4 | 2 | supporting |
| Mask / treatment | 303 | 52% | 5 | 2 | supporting |
| Leave-in | 235 | 34% | 6 | 2 | supporting |
| Styler: curl cream | 53 | 23% | 7 | 3 | supporting |
| Heat protectant | 42 | 20% | 9 | 3 | secondary |
| Co-wash | 37 | 37% | 5 | 2 | supporting |
| Styler: smoothing cream | 20 | 25% | 6 | 3 | supporting |
| Finisher: serum | 14 | 10% | 9 | 4 | secondary |
| Shampoo | 14 | 1% | 9 | 3 | secondary |
| Scalp treatment | 12 | 4% | 5 | 3 | supporting |
| Styler: mousse | 10 | 5% | 9 | 6 | secondary |
| Styler: gel | 7 | 3% | 17 | 7 | secondary |
| Styler: lotion | 6 | 17% | 7 | 5 | supporting |
| Styler: refresh spray | 6 | 17% | 5 | 3 | supporting |
| Styler: volumizer | 6 | 4% | 10 | 5 | secondary |
| Finisher: anti frizz finish | 4 | 13% | 7 | 3 | supporting |
| Finisher: shine spray | 4 | 4% | 8 | 4 | supporting |
| Finisher: oil | 3 | 1% | 11 | 7 | secondary |
| Styler: hairspray | 2 | 1% | 11 | 4 | secondary |
| Styler: texture spray | 1 | 1% | 10 | 10 | secondary |
We have not researched differences by product type yet. The reading below comes from where it sits on the labels in our library.
Position footprint
Every listing in our library, by position on the label.
| Positions | Zone | Listings |
|---|---|---|
| 1-3 | Leading | 330 |
| 4-8 | Supporting | 828 |
| 9-15 | Secondary | 180 |
| 16-25 | Lower | 83 |
| 26+ | Trace | 23 |
How to read this
US labelling rules put ingredients above 1% in descending order of amount; below 1% they may be listed in any order.
So position tells you about relative amount only above that line, and we never convert a position into a percentage.
Who should pay attention
Formulation guidance for specific hair conditions, limited to the label positions where it applies. It is not a conclusion about any finished product, or about you.
Electrokinetic measurement puts the C22 quat ahead of the C16 ones for deposition: the longer chain adds van der Waals stabilisation on top of the charge binding. That extra deposit is what coarse hair usually needs to comb through.
Read where it is listed in the first three ingredients, positions 4–8 or the lower half of the ordered list.A cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
Substantive by design. A routine with no detergent wash gives it nothing to leave with.
Every detergent removes some sebum along with the product it is there to wash out. Which detergent it is matters more than that there is one.
The same chain length that makes it deposit best makes it the heaviest of the conditioning quats. High on a list, fine hair reaches limp before the detangling is finished.
Read where it is listed in the first three ingredients or positions 4–8.Rows marked “researched” were read for this ingredient and cited below; the rest are read from its chemical class.
Why it matters to shoppers
What seeing this ingredient tells you, what it does not, and the limits of our own method.
- detangling
- thick or coarse hair
- detangling and less breakage from combing
- a product ordinary shampooing removes
- an exact safety score (we do not publish one for any ingredient)
- how a finished product performs, which depends on the whole formula, not one line of it
- the exact percentage in a bottle, because label position never converts into a number
- a supporting conditioner alongside the main ingredients in our conditioners
- it was on the printed ingredient list of every product we counted (we read labels, not marketing copy)
- it is meant to stay on the hair rather than rinse away
- that a product is right or wrong for you
We do not publish safety scores or hazard grades. Where a regulator has published a restriction or a use condition, we state it and cite it; otherwise we describe what the ingredient does and stop.
Commonly paired with
The ingredients that most often appear alongside this one in our library. We leave out the near-universal ones, because they pair with everything and tell you nothing.
- Isopropyl Alcohol · 687
- Cetrimonium Chloride · 686
- Cetyl Alcohol · 567
- Ethylhexylglycerin · 497
- Benzyl Alcohol · 462
- Amodimethicone · 429
- Dimethicone · 413
- Tocopherol · 401
- Guar Hydroxypropyltrimonium Chloride · 373
- Disodium EDTA · 371
The number beside a name is how many products in our library list both.
These ingredients tend to appear together to carry the formula and let it dry, improve feel after rinsing, and soften the strand.
Found in these products
The most prominent placements first. The badge is the position on that product’s own ingredient list.
Act+Acre · Conditioner
Daily Hydro™ Hydrating Conditioner
#2 on the label · $3.80/oz
Aveeno · Conditioner
Apple Cider Vinegar Blend Clarify & Shine Conditioner
#2 on the label · $1.68/oz
Better Not Younger · Conditioner
Full Transparency Shine Revitalizing Conditioner
#2 on the label · $3.45/oz
CurlMix · Leave-in
Avocado Moisturizer – Brown Sugar Baby
#2 on the label · $3.75/oz
DevaCurl · Co-wash
No-Poo Blue Anti-Brass Zero Lather Toning Cleanser
#2 on the label · $2.67/oz
Drybar · Conditioner
Agua Fresca Hydrating Conditioner
#2 on the label · $3.53/oz
Drybar · Conditioner
Liquid Glass Smoothing Conditioner
#2 on the label · $3.77/oz
Hask · Leave-in
Curls + Coconut Oil 5-in-1 Leave-In Spray
#2 on the label · $1.17/oz
Kerastase · Conditioner
Resistance Ciment Anti-Usure Conditioner
#2 on the label · $6.77/oz
Kitsch · Conditioner
Castor Oil Nourishing Conditioner Bar
#2 on the label · $8.00/oz
Kitsch · Conditioner
Purple Toning Conditioner Bar for Color-Treated & Grey Hair
#2 on the label · $5.93/oz
Kitsch · Conditioner
Shea Butter Hydrating Solid Conditioner Bar
#2 on the label · $5.19/oz
See all 1444 products in the library that list Behentrimonium Chloride
Identity
What this entry is, and what our references call it.
Behentrimonium Chloride
- CAS 17301-53-0
- PubChem 3014969
- cleanser
- behenentruim chloride
- behentrimonium chloride
- behentrimonium chloride (and) isopropyl alcohol
- behentrimonium chloride (plant derived)
For your hair?
Whether Behentrimonium Chloride matters for your hair depends on your hair.
the 3rd most-listed conditioning agent in our libraryWhat this ingredient does, and where it sits on the labels we have researched.
A verdict on any product that contains it, and never a safety grade.
We do not physically test your hair. Everything above comes from the ingredient lists in our library and from published references. The consultation is what turns it into a plan.
References
Sourced Backed by a manufacturer or regulatory source.
This ingredient
- Manufacturer or regulatory International Journal of Cosmetic Science : Tham et al., Electrokinetic analysis reveals common conditioner ingredient interactions with human hair (2026). Measures adsorption on hair and finds the longer-chain behentrimonium (C22) deposits better than cetrimonium chloride (C16), the extra chain adding van der Waals stabilisation on top of the electrostatic binding; also that conditioners improve manageability without repairing structural damage. · accessed 2026-08-30
- Manufacturer or regulatory PubChem : Compound identity: CID 3014969, CAS 17301-53-0, C25H54ClN · accessed 2026-08-28
How this page was made
- Every number above is counted from the ingredient lists in our own product library: 1444 of 6816 researched products list this ingredient. Nothing on this page is written per ingredient.
- The dots are levels, not scores. Each one comes from what kind of ingredient it is (its chemical class, charge and solubility) or from where it sits on the labels we have.
- US labelling rules put ingredients above 1% in descending order of amount; below 1% they may be listed in any order. Position tells you about relative amount only above that line, and we never convert a position into a percentage.
- The prominence bands (leading, supporting, secondary) are the same ones the product pages use to read a single label, applied here to the median position across a category.
- We do not publish safety scores or hazard grades. Where a regulator has published a restriction or a use condition, we state it and cite it; otherwise we describe what the ingredient does and stop.
- Identifiers and references appear only when a published source is attached to this entry. Without one, we leave the row out rather than fill it in.
- This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
- Entry last updated 2026-09-22. Product-page methodology: the product library.
