What it is
In the register’s words: “Linum Usitatissimum Seed Oil is the expressed oil from the dried ripe seed of the Linseed, Linum usitatissimum L., Linaceae.”
- EU register name (INCI)
- LINUM USITATISSIMUM SEED OIL
- CAS number
- 8001-26-1
- EC number
- 232-278-6
- Written on these labels as
- Linum Usitatissimum (Linseed) Seed Oil; Linum Usitatissimum Seed Oil
Labels often add a second name in brackets, so a label may say Linum Usitatissimum (Linseed) Seed Oil where the register says LINUM USITATISSIMUM 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 Linum Usitatissimum (Linseed) 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.
- 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.
- Shampoos 2 labels First five names: 0 of 2 Shampoos without it
- Rinse-out conditioners 3 labels First five names: 0 of 3 Rinse-out conditioners without it
- Deep conditioners 2 labels First five names: 0 of 2 Deep conditioners without it
- Stylers 3 labels First five names: 0 of 3 Stylers without it
- Hair oils 1 label First five names: 0 of 1 Hair oils without it
Every label, product by product (11)
- Bouclème Curl Cleanser Shampoo 11th of 35 names
- Bouclème Fragrance Free Curl Cleanser Shampoo 10th of 18 names
- Bouclème Curl Conditioner Rinse-out conditioner 11th of 38 names
- Bouclème Fragrance Free Curl Conditioner Rinse-out conditioner 9th of 17 names
- Innersense Organic Beauty Hydrating Cream Conditioner Rinse-out conditioner 25th of 38 names
- Aunt Jackie's Coco Repair Coconut Creme Deep Conditioner Deep conditioner · listed as Linum Usitatissimum Seed Oil 6th of 33 names
- Innersense Organic Beauty Hydrating Hair Mask Deep conditioner 23rd of 54 names
- Bouclème Curl Defining Gel Styler 8th of 31 names
- Aunt Jackie's Don't Shrink Flaxseed Elongating Curling Gel Styler 6th of 20 names
- Bouclème Fragrance Free Curl Defining Gel Styler 6th of 12 names
- Cécred Nourishing Hair Oil Hair oil 12th of 31 names
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
Other perfuming ingredients on these labels
- Linalool 63 labels
- Citronellol 24 labels
- Geraniol 24 labels
- Hexyl Cinnamal 21 labels
- Coumarin 15 labels
- Benzyl Salicylate 12 labels
- Amyl Cinnamal 9 labels
- Alpha-Isomethyl Ionone 7 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.