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Ingredient on hair labels

Ricinus Communis (Castor) Seed Oil

TheWashDay editorial · Updated · From the EU ingredient register and the makers’ own labels · How we match names

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Ricinus Communis (Castor) Seed Oil is on 32 of the 177 hair-product labels we compare, from 12 makers. Its uses in the EU ingredient register are fragrance, perfuming and skin conditioning. 8 of these labels name it among the first five ingredients.

See it on each label Products without it

What it is

In the register’s words: “Ricinus Communis Seed Oil is the fixed oil obtained from the seeds of Castor, Ricinus communis, Euphorbiaceae.”

EU register name (INCI)
RICINUS COMMUNIS SEED OIL
CAS number
8001-79-4
EC number
232-293-8
Written on these labels as
Ricinus Communis (Castor) Seed Oil; Ricinus Communis (Jamaican Black Castor) Seed Oil

Labels often add a second name in brackets, so a label may say Ricinus Communis (Castor) Seed Oil where the register says RICINUS COMMUNIS SEED OIL. Both are the same ingredient.

What the register lists it for

These are the uses the European Commission’s CosIng register lists for Ricinus Communis (Castor) Seed Oil in any cosmetic, hair roles first. They say why a maker might add it, not what it does in one formula, and they aren’t a safety rating.

Fragrance

Gives the product its smell or covers an unpleasant one. A label may name each scent ingredient or group them as Fragrance (Parfum).

Register definition: “Imparting an odour or taste. Creating a perceivable pleasant smell and/or masking a bad smell.”

Perfuming

Used as a perfume or scent material. Essential oils and their scent compounds, such as linalool and limonene, carry this role.

Register definition: “Used for perfume and aromatic raw materials.”

Skin conditioning

The register’s broad role for ingredients that keep skin in good condition. On a hair label it often sits beside a hair role, or marks a plant oil or extract.

Register definition: “Maintaining the skin in good condition.”

Where it sits on each label

US labels list ingredients from most to least, except that those at 1% or less may follow in any order. A name near the top is a large part of the formula. A label doesn’t mark where the 1% point falls, so further down, the order says little about how much is in it.

Every label, product by product (32)

Each line runs from the first name on a label to the last; a dot is where this ingredient sits. Makers change formulas now and then; if the list on your bottle differs, go by your bottle.

Your next step

Find products without Ricinus Communis (Castor) Seed Oil Check every name on your own label All ingredients on the labels we compare

Other fragrance ingredients on these labels

Updated · The name, numbers and uses come from the European Commission’s CosIng entry (CC BY 4.0); we write the uses in US spelling and put the hair ones first. The labels are each maker’s own. The order rule is the FDA’s Cosmetics Labeling Guide. All our sources are on the Sources page.