PROPELLANT
Propane
- propellant
An aerosol propellant, usually blended with butane to set the spray pressure.
- products in our library
- 156
- of researched products
- 2%
- on the label, in our styling mousses
- usually #4
- most common in
- Styler: mousse
- in water
- Volatile
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 | None left behind | 1 of 5 |
| Rinse-out behaviour | Rinses clean | 5 of 5 |
| Drying speed | Flashes off | 5 of 5 |
| Residue | None | 1 of 5 |
What it does for a formula
What Propane does
The general function first, then how the role changes by product type where we have researched it.
A liquefied gas that evaporates on contact and leaves nothing behind.
It carries the formula onto the hair and then leaves.
Charge
Charge is not recorded for this ingredient.
Solubility
Evaporates after application rather than staying on the hair, so it leaves nothing behind to remove.
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 ? |
|---|---|---|
Styler: mousse
78 products
|
supporting · #4 | |
Dry shampoo
33 products
|
leading · #3 | |
Finisher: shine spray
11 products
|
supporting · #4 | |
Styler: volumizer
11 products
|
supporting · #4 | |
Styler: hairspray
6 products
|
supporting · #6 | |
Heat protectant
4 products
|
supporting · #4 | |
Conditioner
2 products
|
supporting · #6 | |
Leave-in
2 products
|
secondary · #12 | |
Shampoo
2 products
|
secondary · #13 | |
Finisher: oil
1 product
|
leading · #3 |
6 more product types
| Product type | How common | Typical position on label ? |
|---|---|---|
Finisher: serum
1 product
|
supporting · #4 | |
Mask / treatment
1 product
|
supporting · #5 | |
Styler: curl cream
1 product
|
secondary · #35 | |
Styler: refresh spray
1 product
|
leading · #3 | |
Styler: smoothing cream
1 product
|
secondary · #16 | |
Styler: texture spray
1 product
|
secondary · #9 |
| Product type | Products | Share of category | Median position | Earliest position | Band |
|---|---|---|---|---|---|
| Styler: mousse | 78 | 39% | 4 | 2 | supporting |
| Dry shampoo | 33 | 25% | 3 | 1 | leading |
| Finisher: shine spray | 11 | 11% | 4 | 3 | supporting |
| Styler: volumizer | 11 | 8% | 4 | 4 | supporting |
| Styler: hairspray | 6 | 2% | 6 | 4 | supporting |
| Heat protectant | 4 | 2% | 4 | 3 | supporting |
| Conditioner | 2 | 0% | 6 | 3 | supporting |
| Leave-in | 2 | 0% | 12 | 4 | secondary |
| Shampoo | 2 | 0% | 13 | 5 | secondary |
| Finisher: oil | 1 | 0% | 3 | 3 | leading |
| Finisher: serum | 1 | 1% | 4 | 4 | supporting |
| Mask / treatment | 1 | 0% | 5 | 5 | supporting |
| Styler: curl cream | 1 | 0% | 35 | 35 | secondary |
| Styler: refresh spray | 1 | 3% | 3 | 3 | leading |
| Styler: smoothing cream | 1 | 1% | 16 | 16 | secondary |
| Styler: texture spray | 1 | 1% | 9 | 9 | 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 | 56 |
| 4-8 | Supporting | 85 |
| 9-15 | Secondary | 6 |
| 16-25 | Lower | 8 |
| 26+ | Trace | 1 |
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.
- an aerosol format
- nothing left on the hair
- 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 propellant alongside the main ingredients in our styling mousses
- it was on the printed ingredient list of every product we counted (we read labels, not marketing copy)
- it is a carrier, not something left on the hair
- 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.
- Isobutane · 139
- Butane · 76
- Alcohol Denat. · 59
- Citronellol · 55
- Hexyl Cinnamal · 52
- Propylene Glycol · 48
- VP/VA Copolymer · 43
- Polyquaternium-4 · 42
- Cetrimonium Chloride · 42
- Ethylhexylglycerin · 41
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, give it a scent, and give the formula body and hold.
Found in these products
The most prominent placements first. The badge is the position on that product’s own ingredient list.
UNITE Hair · Dry shampoo
U:DRY Clear Dry Shampoo
#1 on the label · $6.46/oz
UNITE Hair · Dry shampoo
U:DRY Plus+ Dry Shampoo
#1 on the label · $5.52/oz
Alterna · Styler
Caviar Anti-Aging Multiplying Volume Styling Mousse
#2 on the label · $4.02/oz
Bed Head · Dry shampoo
Dirty Secret™ Instant Refresh Dry Shampoo
#2 on the label · $2.80/oz
Bed Head · Dry shampoo
Oh Bee Hive™ Volumizing Dry Shampoo for Day 2 Hair
#2 on the label · $4.00/oz
Dove · Dry shampoo
Fresh Coconut Advanced Dry Shampoo
#2 on the label · $1.37/oz
Dove · Dry shampoo
Volume & Fullness Advanced Dry Shampoo
#2 on the label · $1.59/oz
Dove · Dry shampoo
Workout Refresh Advanced Dry Shampoo
#2 on the label · $1.60/oz
Drybar · Dry shampoo
Detox Clear Invisible Dry Shampoo
#2 on the label · $8.57/oz
Drybar · Dry shampoo
Detox Dry Shampoo Coconut Colada Scent
#2 on the label · $11.43/oz
Drybar · Dry shampoo
Detox Dry Shampoo Lush Scent
#2 on the label · $7.90/oz
IGK · Dry shampoo
Direct Flight Dry Shampoo
#2 on the label · $5.40/oz
Identity
What this entry is, and what our references call it.
Propane
- CAS 74-98-6
- PubChem 6334
- propane



For your hair?
Whether Propane matters for your hair depends on your hair.
156 products in our library list itWhat 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 6334, CAS 74-98-6, C3H8 · accessed 2026-08-28
How this page was made
- Every number above is counted from the ingredient lists in our own product library: 156 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.