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Vitamins and actives

ACTIVE

Piroctone Olamine

  • active

An anti-flaking agent common outside the United States, used at cosmetic levels here.

73products in our library
1%of researched products
usually #13on the label, in our shampoos
Shampoomost common in
Water-dispersiblein water
products in our library
73
of researched products
1%
on the label, in our shampoos
usually #13
most common in
Shampoo
in water
Water-dispersible

At a glance

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

Buildup risk Low

How much of it is left on hair between washes.

Rinse-out behaviour Rinses with shampoo

What it takes to get it off the hair again.

Prominence in our shampoos Secondary

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

Stated purpose A stated active

Why a formulator says it is in there.

The same figures as a table. The at-a-glance levels for Piroctone Olamine.
PropertyLevelOut of
Buildup riskLow2 of 5
Rinse-out behaviourRinses with shampoo4 of 5
ProminenceSecondary2 of 5
Stated purposeA stated active4 of 5

What it does for a formula

What Piroctone Olamine does

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

A stated active

Named on the label for a specific purpose rather than for texture.

Spreads through water

It does not truly dissolve, and ordinary shampooing removes it.

Charge

Not recorded not recorded for this entry

Charge is not recorded for this ingredient.

Solubility

Water-solubleOil-solubleWater-dispersibleInsolubleVolatile

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 ?
Shampoo 30 products
secondary · #13
Scalp treatment 16 products
secondary · #18
Conditioner 7 products
secondary · #16
Co-wash 4 products
secondary · #24
Leave-in 4 products
secondary · #19
Finisher: oil 3 products
secondary · #12
Finisher: serum 2 products
supporting · #7
Mask / treatment 2 products
secondary · #15
Styler: edge control 2 products
secondary · #24
Styler: curl cream 1 product
secondary · #18
Leading 1–3Supporting 4–8Secondary 9–15Lower 16–25Trace 26+
2 more product types
Product type How common Typical position on label ?
Styler: gel 1 product
supporting · #8
Styler: smoothing cream 1 product
secondary · #29
The same figures as a table. Where Piroctone Olamine sits on the ingredient list, by product type.
Product typeProductsShare of categoryMedian positionEarliest positionBand
Shampoo302%135secondary
Scalp treatment165%185secondary
Conditioner71%169secondary
Co-wash44%2417secondary
Leave-in41%1916secondary
Finisher: oil31%126secondary
Finisher: serum21%74supporting
Mask / treatment20%1510secondary
Styler: edge control25%2419secondary
Styler: curl cream10%1818secondary
Styler: gel10%88supporting
Styler: smoothing cream11%2929secondary

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 10Secondary 30Lower 20Trace 13

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

Every listing of Piroctone Olamine in our library, grouped by its position on the label.
PositionsZoneListings
1-3Leading0
4-8Supporting10
9-15Secondary30
16-25Lower20
26+Trace13

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 good sign if you want
  • an ingredient included for a stated purpose
  • a product ordinary shampooing removes
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 active, 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 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, clean and build foam, and keep the formula stable.

Found in these products

The most prominent placements first. The badge is the position on that product’s own ingredient list.

See all 73 products in the library that list Piroctone Olamine

Identity

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

Two-dimensional structural depiction of Piroctone Olamine
Structure depiction from PubChem (public domain)
Canonical name

Piroctone Olamine

Identifiers
Most-listed rank

#18 of 37 vitamins and actives in our library, by how many products list it

Also listed as
  • piroctone olamine
Suits every hair pattern

For your hair?

Whether Piroctone Olamine matters for your hair depends on your hair.

73 products in our library list it
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.

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 50258, CAS 68890-66-4, C16H30N2O3 · accessed 2026-08-28

How this page was made

  • Every number above is counted from the ingredient lists in our own product library: 73 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.

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