SCA endorses products with the Allergy Certified logo, that adhere to the recommended Essential Oil usage outlined below. And, that restrict all fragrances (including synthetic and essential oils) to a CTU combined total usage of 1% or less for leave-on products, and 3% or less rinse off products.
Restricted by SCA - Standard usage guide:
Face care products 0.2-1.5%
Body massage 1.5-3%
Bath & Body products 1-4%
Specific skin issues 4-10%
Antiseptic for wounds 5-20%
Treating pain 5-20%
Restricted by SCA - Standard usage by age:
0-3 months old 0.1% to 0.2%
3-24 months old 0.25% to 0.5%
Age 2-6 years old 1% to 2%
Age 6-17 years 1.5% to 3%
Age 18+ years for most adults 2% to 3%
Adult short term application 3% to 10%
Elderly or sick 0.5% to 1%
Essential oils extracted from plant material by steam distillation or mechanical expression are acceptable. EO's produced with the aid of chemical solvents are not considered 'true' essential oils, therefore SCA classes these EO's as synthetic fragrance/parfum. Ref: NICBI
IRRITANT ESSENTIAL OILS USAGE:
Maximum Usage Permitted:
1.4% Ajowan Oil
0.1% Garlic Oil
0.01% Massoia Bark EO
1.1% Oregano EO
1.4% Summer Savory Oil
1.3% Thyme Oil
1.2% Winter Savory Oil
ALLERGIC ESSENTIAL OILS USAGE:
Maximum Combined Total Usage Permitted 1% leave on or 3% rinse off:
0.9% Bay Oil West Indian
0.05% Cassia Oil
0.1% Cinnamon Bark Oil
0.6% Cinnamon Leaf
0.5% Clove Bud Oil
1.0% Holy Basil Oil
0.7% Jasmine Absolute
0.05% Lemon (TGA poisons standard)
0.7% Lemongrass Oil
0.7% Lemon Myrtle
0.8% Lemon Scented Tea Tree
0.8% May Chang Oil
0.01% Massoia Oil
0.9% Melissa Oil
0.1% Oakmoss Absolute
0.6% Opoponax Oil
0.4% Peru Balsam Oil
0.8% Ylang Ylang Oil
Products containing the following compounds require a safety warning to patch test before use. These fragrance components are included in the total usage of fragrance ingredients 1% leave on products and 3% rinse off products: Benzoyl Benzoate, Citral, Citronellol, Farnesol, Hexyl Cinnamal, Hydroxyisohexyl 3-cyclohexene carbox-aldehyde, Isoeugenol, Limonene, Linalool. Benzoyl Benzoate, and Farnesol.
HOW IS IT USED?
Whilst Essential oils boast all kinds of positive health benefits, they should never be used undiluted. In cosmetics, essential oils are used as fragrance ingredients, for their therapeutic benefit, as well as their anti-inflammatory, antibacterial and antiviral properties. EO's also act as natural preserving agents. "Children are particularly susceptible. As little as 2mL (less than half a teaspoon) of eucalyptus oil can cause significant poisoning in an infant." - WA Health
USING ESSENTIAL OILS:
When using essential oils, a low usage of 1% or less is considered safe for use for sensitive skin, and unlikely to cause irritation.
Any allergen has the potential to trigger an allergy, therefore if you are allergic then avoid using the allergen all together.
The percentage for products that are not applied directly to the skin ie. wash-off products are restricted to <2.5% for the combined total usage of fragrances including esssential oils and synthetic fragrances.
RESEARCH - WHAT THE EXPERTS SAY
Daniel More MD "The most commonly reported allergic reaction to essential oils is contact dermatitis. Contact dermatitis from essential oils causes an itchy, bumpy rash on the skin at the site of contact with the oil. The rash may appear similar to poison oak, may have blisters and peel when the rash is resolving." - VeryWellHealth.com
Banned by the International Fragrance Association; extracts and distillates maximum 0.4% in products - WikiPedia
Essential Oils: Natural Doesn’t Mean Risk-Free - WebMD; “I would certainly advise teens and children not to use essential oils,” says Jessica Krant, MD, an assistant clinical professor of dermatology at SUNY Downstate Medical Center in New York.
RESEARCH & RECOMMENDED ARTICLES - ESSENTIAL OILS:
MORE INFO ON FRAGRANCES & ALLERGIES:
The key is to look for products that are totally fragrance-free — which is not the same as unscented. "Unscented means that a product can contain a masking fragrance to camouflage its pungent, unpleasant odor," says Bank in an article for MarieClaire. "Fragrance-free means truly no fragrances."
“There is definitely credible science behind certain benefits for certain essential oils,” says Cynthia Bailey, MD “Once you become sensitized, you will forever be allergic to it,” says Bailey in an article for WebMD.
"If you suffer from contact dermatitis from fragrances, have a history of allergies to weed pollens, have significant asthma or chronic nasal symptoms, I would highly recommend speaking with your physician, allergist or dermatology prior to the use of any essential oil product." Daniel More MD, VeryWellHealth.com