Aromatherapy Carrier Oils and Dilution 2

Question 1

Which dilution rate is typically recommended for children aged 2–6 years?

Accepted Answer

1%

Answer

A 1% dilution is generally recommended for young children ages 2–6 to account for their more sensitive and permeable skin.

Question 2

Which carrier oil is exceptionally high in ricinoleic acid, giving it unique thick consistency and use in hair products?

Accepted Answer

Castor oil

Answer

Castor oil contains approximately 90% ricinoleic acid, an unusual fatty acid that gives it its thick viscosity and hair-conditioning properties.

Question 3

Which carrier oil is especially valued in aromatherapy for its high vitamin E content and use as a natural preservative for other carrier oils?

Accepted Answer

Wheat germ oil

Answer

Wheat germ oil is extremely rich in vitamin E (tocopherols) and is often added in small amounts to extend the shelf life of blends.

Question 4

Which dilution is considered appropriate for an acute, short-term therapeutic treatment blend for adults?

Accepted Answer

5–10%

Answer

A 5–10% dilution may be used for short-term acute treatments such as a localized muscle pain blend, used only briefly.

Question 5

Which carrier oil derived from the fruit of an African tree is rich in oleic and stearic acids and known for its skin-healing properties?

Accepted Answer

Marula oil

Answer

Marula oil, from the Marula tree native to sub-Saharan Africa, contains high oleic acid content and is prized for skin rejuvenation.

Aromatherapy Practice Test