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Lavandula angustifolia

Lavender oil

None of the restricted materials in IFRA's annex limits this oil in rinse-off soap.

IFRA maximum for soap

no IFRA limit in soap

Restricted constituents, at the typical levels IFRA's annex gives:

1-Octen-3-yl acetate
1.04 %
Geraniol
0.48 %
2-Hexenal
0.01 %

Worked out from typical levels. A supplier's certificate for your lot comes first, and its figure is the one to follow.

Check a blend against its IFRA limits and list its allergens in the fragrance and allergen calculator.

How essential oils behave in soap, and how much to use: Scenting soap.

Identity and labelling

Lavandula Angustifolia Oil

Botanical name
Lavandula angustifolia
CAS
8000-28-0, 90063-37-9
EC
289-995-2

The EU names this oil itself as a fragrance allergen (Regulation (EU) 2023/1545, Annex III entry 360): it goes on the label by name above 0.01 % in a rinse-off product.

What it is and how it behaves in soap

Lavender oil is steam-distilled from the freshly cut flowering tops of true lavender, Lavandula angustifolia (ISO 3515). Bulgaria is now the largest producer, ahead of France and China (Massoud and colleagues). It smells sweet, floral and herbal, from linalool and linalyl acetate.

It is the first essential oil most soapmakers use. Watson suggests starting with it, Faiola lists it among the oils that behave well in cold process, and Fisher calls it his desert island oil because it blends with practically everything. Recipes use it at 1.2 to 3.1 % of the oils (Cable) and 1.5 to 4 % (Faiola). The IFRA figure on this page is the ceiling.

Lavender is among the most adulterated oils, stretched with lavandin or with synthetic linalool and linalyl acetate (Capetti and colleagues; Gafner and colleagues). Air makes it a stronger skin sensitiser as those components oxidise (SCCS), so keep the bottle cool, full and closed.

Recipes that use it

Sources

All essential oils