NAMED FRAGRANCE ALLERGEN

Hexyl Cinnamal

named fragrance allergen

A jasmine-like fragrance component named separately as a recognised allergen.

1449products in our library

21%of researched products

usually #25on the label, in our shampoos

Shampoomost common in

Oil-solublein water

products in our library: 1449
of researched products: 21%
on the label, in our shampoos: usually #25
most common in: Shampoo
in water: Oil-soluble

At a glance

Four things worth knowing about how this ingredient behaves on hair.

Buildup risk Needs a cleanser

How much of it is left on hair between washes.

Rinse-out behaviour Rinses with a cleanser

What it takes to get it off the hair again.

Declaration Named allergen

How specifically the label has to name it.

Prominence in our shampoos Secondary

Where it sits on the labels we have, in the category it appears in most.

The same figures as a table. The at-a-glance levels for Hexyl Cinnamal.
Property	Level	Out of
Buildup risk	Needs a cleanser	4 of 5
Rinse-out behaviour	Rinses with a cleanser	2 of 5
Declaration	Named allergen	5 of 5
Prominence	Secondary	2 of 5

What it does for a formula

What Hexyl Cinnamal does

The general function first, then how the role changes by product type where we have researched it.

Gives it a scent

A declared blend: the individual components are not named unless rules require it.

A named scent component

EU rules require this one to be listed by name rather than inside "fragrance".

Stays until washed

It takes a surfactant to remove, which matters on a low-detergent routine.

Charge

Not recorded not recorded for this entry

Charge is not recorded for this ingredient.

Solubility

Water-solubleOil-solubleWater-dispersibleInsolubleVolatile

Needs a surfactant to remove. On a low-detergent routine it can build up over time.

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 290 products	19%	secondary · #25
Conditioner 240 products	21%	secondary · #25
Leave-in 163 products	24%	secondary · #24
Mask / treatment 119 products	20%	secondary · #26
Styler: hairspray 71 products	29%	secondary · #15
Heat protectant 63 products	31%	secondary · #22
Styler: mousse 57 products	28%	secondary · #23
Styler: gel 56 products	21%	secondary · #21
Finisher: oil 50 products	18%	secondary · #16
Styler: curl cream 48 products	21%	secondary · #29

Leading 1–3Supporting 4–8Secondary 9–15Lower 16–25Trace 26+

15 more product types

Product type	How common	Typical position on label ?
Styler: paste 43 products	22%	secondary · #24
Finisher: serum 39 products	28%	secondary · #17
Styler: volumizer 34 products	23%	secondary · #23
Dry shampoo 31 products	24%	secondary · #19
Scalp treatment 29 products	10%	secondary · #26
Finisher: shine spray 28 products	27%	secondary · #16
Styler: smoothing cream 24 products	30%	secondary · #28
Styler: texture spray 21 products	21%	secondary · #18
Co-wash 10 products	10%	secondary · #27
Finisher: anti frizz finish 9 products	28%	secondary · #22
Styler: refresh spray 9 products	26%	secondary · #25
Styler: lotion 7 products	19%	secondary · #22
Styler: edge control 6 products	16%	secondary · #26
Finisher: end oil 1 product	13%	supporting · #7
Relaxer 1 product	25%	secondary · #29

The same figures as a table. Where Hexyl Cinnamal sits on the ingredient list, by product type.
Product type	Products	Share of category	Median position	Earliest position	Band
Shampoo	290	19%	25	12	secondary
Conditioner	240	21%	25	10	secondary
Leave-in	163	24%	24	8	secondary
Mask / treatment	119	20%	26	10	secondary
Styler: hairspray	71	29%	15	8	secondary
Heat protectant	63	31%	22	6	secondary
Styler: mousse	57	28%	23	13	secondary
Styler: gel	56	21%	21	11	secondary
Finisher: oil	50	18%	16	6	secondary
Styler: curl cream	48	21%	29	12	secondary
Styler: paste	43	22%	24	10	secondary
Finisher: serum	39	28%	17	4	secondary
Styler: volumizer	34	23%	23	7	secondary
Dry shampoo	31	24%	19	8	secondary
Scalp treatment	29	10%	26	11	secondary
Finisher: shine spray	28	27%	16	8	secondary
Styler: smoothing cream	24	30%	28	14	secondary
Styler: texture spray	21	21%	18	9	secondary
Co-wash	10	10%	27	13	secondary
Finisher: anti frizz finish	9	28%	22	10	secondary
Styler: refresh spray	9	26%	25	13	secondary
Styler: lotion	7	19%	22	14	secondary
Styler: edge control	6	16%	26	15	secondary
Finisher: end oil	1	13%	7	7	supporting
Relaxer	1	25%	29	29	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

Leading 0Supporting 21Secondary 238Lower 592Trace 598

Every listing in our library, by position on the label.

Every listing of Hexyl Cinnamal in our library, grouped by its position on the label.
Positions	Zone	Listings
1-3	Leading	0
4-8	Supporting	21
9-15	Secondary	238
16-25	Lower	592
26+	Trace	598

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.

May not suitFragrance-sensitive routines

One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.

Read from this ingredient’s chemical class. Where we have researched the ingredient itself, that reading replaces the class one.

Why it matters to shoppers

What seeing this ingredient tells you, what it does not, and the limits of our own method.

A good sign if you want

a scented product
scent components named individually
something that lasts through the day

Less relevant if you want to know

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

Seeing it usually means

a secondary fragrance, 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)

It does not automatically mean

that the product will suit you if you react to scent
that it is riskier than the unnamed components of a fragrance blend
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.

The number beside a name is how many products in our library list both.

These ingredients tend to appear together to give it a scent, carry the formula and let it dry, 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.

L'Oreal Professionnel · Finisher [Vitamino Color Spectrum] Glass Shine Serum #4 on the label · $21.87/oz

L'Oreal Professionnel · Finisher [TECNI.ART] Liss Control + #5 on the label · $17.65/oz

Biolage · Finisher Smooth Proof Hair Serum for Anti-Frizz and Hair Shine #6 on the label · $8.53/oz

Design Essentials · Finisher Silk Essentials Thermal Strengthening Serum #6 on the label · $5.63/oz

Garnier Fructis · Finisher Sleek & Shine Anti-Frizz Serum #6 on the label · $1.96/oz

ion · Finisher Humidity-Defying Serum #6 on the label · $3.28/oz

Paul Mitchell · Heat protectant Super Skinny Serum #6 on the label · $4.17/oz

Sebastian · Finisher Dark Oil Lite #6 on the label · $13.77/oz

Wella · Finisher Oil Reflections Luminous Smoothing Oil #6 on the label · $6.94/oz

Hask · Finisher Repair Series Weightless Repair Oil Mist #7 on the label · $3.17/oz

John Frieda · Finisher Frizz Ease The Controller Extra Strength Serum #7 on the label · $7.04/oz

Kenra Professional · Finisher Platinum Silkening Gloss #7 on the label · $14.50/oz

See all 1449 products in the library that list Hexyl Cinnamal

Identity

What this entry is, and what our references call it.

Canonical name

Hexyl Cinnamal

Identifiers

CAS 364364-06-7
PubChem 1715135

Most-listed rank

#4 of 173 fragrance in our library, by how many products list it

Also classified as

fragrance

Also listed as

hexyl cinnamal
hexyl cinnamal (hexyl cinnamic aldehyde)
hexyl cinnamalᵻ
hexyl cinnamic aldehyde
hexylcinnamal

For your hair?

Whether Hexyl Cinnamal matters for your hair depends on your hair.

the 4th most-listed fragrance ingredient in our library

What this page is

What this ingredient does, and where it sits on the labels we have researched.

What it is not

A verdict on any product that contains it, and never a safety grade.

Next

Build your hair profile and let the whole library sort itself

Use products with this ingredient? Get free recall alerts for them.

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 1715135, CAS 364364-06-7, C15H20O · accessed 2026-08-28

How this page was made

Every number above is counted from the ingredient lists in our own product library: 1449 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.

Hexyl Cinnamal

What Hexyl Cinnamal does

Where it appears

Position footprint

Whether Hexyl Cinnamal matters for your hair depends on your hair.

References

This ingredient

How this page was made

Hair Care Consultation