Safety Ratings of Essential Oils

Safety Ratings


Essential oils that have been obtained from a highly-reputable company have a safety code to identify additional safety precautions for each essential oil.

A: Generally considered safe.

B: Skin irritant (strong) and mucous membrane irritant (moderate).  Restrict level of use in products.

C: Skin and mucous membrane irritant.  Dilution required.

D: Oil may cause skin irritation in people with very sensitive skin or damaged skin, or can cause an allergic reaction.

E: Very sensitizing allergen which could cause dermatitis.  Use caution.

F: Oil should be used in moderation due to toxicity levels.

G: Photosensitivity—direct exposure to sunlight after use could cause dermatitis.

H: Hazardous oral toxin.

I: Avoid if you have high blood pressure.

J: Avoid if you have epilepsy.

K: No formal testing.  Use caution.

L: Avoid if you have diabetes.


safety ratings for the biblical essential oils

Aloes/Sandalwood Essential Oil: A

Cassia Essential Oil: B

Cedarwood Essential Oil: A

Cypress Essential Oil: A

Frankincense Essential Oil: A

Galbanum Essential Oil: A

Hyssop Essential Oil: F, I, J, L

Myrrh Essential Oil: A, D

Myrtle Essential Oil: A

Onycha Essential Oil: A

Rose of Sharon Essential Oil: A

Spikenard Essential Oil: K

 For more information about biblical essential oils and how to use them, please visit Rebecca’s website,

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