SOLVENT
Benzyl Alcohol
- solvent
A preservative and solvent that also occurs naturally in some essential oils.
- products in our library
- 1797
- of researched products
- 26%
- on the label, in our shampoos
- usually #23
- most common in
- Shampoo
- in water
- Water-soluble
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.
How fast it leaves after the product is applied.
What is still on the hair once it has evaporated.
| Property | Level | Out of |
|---|---|---|
| Buildup risk | Low | 1 of 5 |
| Rinse-out behaviour | Rinses clean | 5 of 5 |
| Drying speed | Steady | 2 of 5 |
| Residue | Minimal | 2 of 5 |
What it does for a formula
What Benzyl Alcohol does
The general function first, then how the role changes by product type where we have researched it.
What everything else is dissolved in before it reaches your hair.
Anything with water in it needs one, over the life of the bottle.
Water alone removes it, so it does not accumulate between washes.
Hair neither pulls it in nor pushes it away.
Charge
Carries no charge, so it neither clings to hair nor is pushed away by it. Nonionic ingredients are the mild, pH-tolerant workhorses of a formula.
Solubility
Rinses out with water alone, so it does not build up on hair between washes.
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 ? |
|---|---|---|
Shampoo
393 products
|
secondary · #23 | |
Conditioner
336 products
|
secondary · #19 | |
Leave-in
219 products
|
secondary · #21 | |
Mask / treatment
188 products
|
secondary · #20 | |
Heat protectant
72 products
|
secondary · #21 | |
Styler: mousse
70 products
|
secondary · #23 | |
Styler: gel
65 products
|
secondary · #17 | |
Styler: curl cream
61 products
|
secondary · #27 | |
Styler: hairspray
52 products
|
secondary · #13 | |
Scalp treatment
49 products
|
secondary · #25 |
14 more product types
| Product type | How common | Typical position on label ? |
|---|---|---|
Styler: paste
45 products
|
secondary · #18 | |
Finisher: oil
43 products
|
secondary · #13 | |
Styler: volumizer
38 products
|
secondary · #22 | |
Finisher: serum
36 products
|
secondary · #16 | |
Styler: texture spray
24 products
|
secondary · #19 | |
Styler: smoothing cream
22 products
|
secondary · #24 | |
Dry shampoo
21 products
|
secondary · #14 | |
Co-wash
19 products
|
secondary · #20 | |
Finisher: anti frizz finish
11 products
|
secondary · #13 | |
Finisher: shine spray
11 products
|
secondary · #13 | |
Styler: refresh spray
10 products
|
secondary · #20 | |
Styler: lotion
6 products
|
secondary · #26 | |
Styler: edge control
5 products
|
secondary · #20 | |
Finisher: end oil
1 product
|
secondary · #33 |
| Product type | Products | Share of category | Median position | Earliest position | Band |
|---|---|---|---|---|---|
| Shampoo | 393 | 25% | 23 | 1 | secondary |
| Conditioner | 336 | 30% | 19 | 2 | secondary |
| Leave-in | 219 | 32% | 21 | 4 | secondary |
| Mask / treatment | 188 | 32% | 20 | 3 | secondary |
| Heat protectant | 72 | 35% | 21 | 6 | secondary |
| Styler: mousse | 70 | 35% | 23 | 8 | secondary |
| Styler: gel | 65 | 24% | 17 | 4 | secondary |
| Styler: curl cream | 61 | 27% | 27 | 7 | secondary |
| Styler: hairspray | 52 | 21% | 13 | 5 | secondary |
| Scalp treatment | 49 | 17% | 25 | 5 | secondary |
| Styler: paste | 45 | 23% | 18 | 10 | secondary |
| Finisher: oil | 43 | 16% | 13 | 4 | secondary |
| Styler: volumizer | 38 | 26% | 22 | 4 | secondary |
| Finisher: serum | 36 | 26% | 16 | 5 | secondary |
| Styler: texture spray | 24 | 24% | 19 | 6 | secondary |
| Styler: smoothing cream | 22 | 27% | 24 | 12 | secondary |
| Dry shampoo | 21 | 16% | 14 | 10 | secondary |
| Co-wash | 19 | 19% | 20 | 7 | secondary |
| Finisher: anti frizz finish | 11 | 34% | 13 | 5 | secondary |
| Finisher: shine spray | 11 | 11% | 13 | 7 | secondary |
| Styler: refresh spray | 10 | 29% | 20 | 5 | secondary |
| Styler: lotion | 6 | 17% | 26 | 8 | secondary |
| Styler: edge control | 5 | 13% | 20 | 12 | secondary |
| Finisher: end oil | 1 | 13% | 33 | 33 | 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 | 5 |
| 4-8 | Supporting | 153 |
| 9-15 | Secondary | 430 |
| 16-25 | Lower | 634 |
| 26+ | Trace | 575 |
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.
Why it matters to shoppers
What seeing this ingredient tells you, what it does not, and the limits of our own method.
- a light, fast-drying formula
- a product that keeps over its shelf life
- a rinse-clean feel
- 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 secondary solvent, listed below the main ingredients in our shampoos
- it was on the printed ingredient list of every product we counted (we read labels, not marketing copy)
- that the product would be better without one
- 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.
- Cetrimonium Chloride · 527
- Hexyl Cinnamal · 519
- Citronellol · 494
- Tocopherol · 484
- Ethylhexylglycerin · 475
- Behentrimonium Chloride · 462
- Benzyl Salicylate · 444
- Guar Hydroxypropyltrimonium Chloride · 427
- Cetyl Alcohol · 406
- Sodium Chloride · 401
The number beside a name is how many products in our library list both.
These ingredients tend to appear together to improve feel after rinsing, give it a scent, and deliver a stated effect.
Found in these products
The most prominent placements first. The badge is the position on that product’s own ingredient list.
Nizoral · Shampoo
A-D Anti-Dandruff Shampoo
#1 on the label · $8.68/oz
Carol's Daughter · Conditioner
Born To Repair Nourishing Conditioner with Shea Butter
#2 on the label · $1.27/oz
LADOR · Mask / treatment
Hydro LPP Treatment
#3 on the label · $1.92/oz
Pantene · Conditioner
Pro-V Classic Clean Conditioner
#3 on the label · $0.40/oz
Schwarzkopf Professional · Shampoo
BC Bonacure Color Freeze Silver Shampoo
#3 on the label · $0.87/oz
Christophe Robin · Styler
Instant Volumizing Leave-in Mist with Rose Water
#4 on the label · $7.69/oz
Davines · Leave-in
HEART OF GLASS Sheer Glaze
#4 on the label · $8.09/oz
Davines · Leave-in
LOVE SMOOTHING Lightweight Milk
#4 on the label · $6.51/oz
Davines · Leave-in
MINU Milk
#4 on the label · $6.51/oz
Davines · Leave-in
NOURISHING Keratin Sealer
#4 on the label · $11.83/oz
Davines · Leave-in
SU Hair Milk
#4 on the label · $8.99/oz
Davines · Finisher
This is an Oil Non Oil
#4 on the label · $4.02/oz
See all 1797 products in the library that list Benzyl Alcohol
Identity
What this entry is, and what our references call it.
Benzyl Alcohol
- CAS 100-51-6
- PubChem 244
- preservative
- benzyl alcohol
- geogard ect
For your hair?
Whether Benzyl Alcohol matters for your hair depends on your hair.
the 2nd most-listed solvent or propellant 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 PubChem : Compound identity: CID 244, CAS 100-51-6, C7H8O · accessed 2026-08-28
How this page was made
- Every number above is counted from the ingredient lists in our own product library: 1797 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.
