It seems to
be an increasingly common practice these days for the ignorant to
take the health of consumers into their hands. Nowhere is this more
apparent than in the sphere of so-called natural health and healing,
a sector that I have been actively involved with for the past 25
years. Even with personal care products, the area of my professional
focus for the past 15 years, there is evident a very real risk of
consumers falling prey to harm from such products, not only from
the mass-production Cosmetics and Toiletry industries, but alarmingly,
also from the so-called natural products sector. The special danger
here arises not only from the commercial expropriation of what was
once traditionally a highly ethical specialty sector far more focussed
on service than profit, but even more sinister, from an element
that uses fraudulent ingredient scare marketing propaganda, along
with pretence or false belief in superiority over competitors that
these operators tend to malign. A case in point is that of Naturebabes
/ Tom-eTots' use of Cocamidopropyl betaine in preference to SLES
and the use of Eucalyptus oil, which is considerably more dangerous
than the Parabens.
Eucalyptus oil can cause skin irritation
and contact dermatitis (Mitchell
J, Rook A, Botanical Dermatology, Greengrass Vancouver, 1979); (Spoerke
D et al, Vet Hum Toxicol, 31:166, 1989); (Webb N et al, J Paediatr
Child Health, 29:368, 1993). Eucalyptus oil is official
in the Indian Pharmacopoeia as a counter-irritant (Indian
Pharmacopoeia, Vol. 1, Government of India Ministry of Health and
Family Welfare, Delhi, 1996) and is official in the
Chinese Pharmacopoeia as a skin irritant used in nerval pain (Tu
G, ed., Pharmacopoeia of the People's Republic of China, Guangdong
Science and Technology Press, Beijing, 1992). Eucalyptus
oil furthermore has skin tumour promoting activity (Roe
F et al, Food Cosmet Toxicol, 3:331, 1965).
Several plant-derived essential oils have
epileptogenic properties (without a history of or existing epilepsy),
including Eucalyptus oil, which due to its highly reactive monoterpene
ketones, is a powerful convulsant. Topical application of Eucalyptus
essential oil is recorded in the paediatric medical literature as
inducing systemic toxicity, expressing as slurred speech, generalised
tonic (muscular contraction) status, ataxia and muscle weakness,
and toxic seizure, progressing to unconsciousness with severe complications
and poor outcome. Seizures are more frequently reported in children
than adults and transient coma can be induced in infants by exceptionally
low concentrations. (Chun L, Hawaii
Med J, 11(2), 1951); (Darben T et al, Australas J Dermatol, 39:265,
1998); (Burkhard P et al, J Neurol, 246(8), 1999); (IPCS INCHEM,
Eucalyptus Oil (PIM031) International Programme on Chemical Safety,
- WHO, UN EP, IPCS, 2005)
The Medline Plus Medical Encyclopedia lists
eucalyptus oil as a poisonous ingredient, the application of which
can cause symptoms of muscle weakness, shallow (possibly rapid)
breathing, rapid heartbeat, dizziness, drowsiness, convulsions,
seizures and unconsciousness, and advise that as emergency home
treatment the body be washed with soap and water before calling
emergency services. If there is survival past 48 hours, this is
usually considered as a good sign that recovery will occur (Johnson
C, The Medline Plus Medical Encyclopedia, US Natl Library of Medicine
and Natl Inst Health, May 2005).
Eucalyptus oil preparations should be kept
out of reach of children and not be applied to the face, especially
the nose of infants or young children
(Whitman B et al, J Paediatr Child Health, 30(2), 1994); (Blumenthal
M et al, eds, The complete German Commission E Monographs, Am Botanical
Council, Austin, TX, 1998). So high was paediatric Eucalyptus
oil poisoning in the indigenous region of Australasia, that preventive
countermeasures were considered, including discouraging vaporiser
use for respiratory infections among young children and altogether
discontinuing the use of eucalyptus oil as a therapeutic agent
(Day L et al, Aust N Z J Public Health, 21(3), 1997).
Pediatric preparations incorporating Eucalyptus oil, were officially
suspended by the World Health Organisation more than a decade ago
(WHO Pharmaceuticals Newsletter,
10:2, 1994) and are now subject to Schedule-5 substance
classification in Australia (National
Drugs and Poisons Schedule Committee, Meeting 36, Therapeutic Goods
Administration, 2002). |
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Here
are the LD50 values for Eucalyptus oil compared to the Parabens.
Eucalyptus oil Rat Oral LD50 is 2,480mg/kg body weight (Registry
of Toxic Effects of Chemical Substances, National Institute
for Occupational Safety and Health, United States, RTECS,
Cincinnati, OH., 1998)
Methylparaben Rat Oral LD50 is 5,600mg/kg
body weight (Cosmetic
Ingredient Review Program, Final report on the safety assessment
of methylparaben, ethylparaben, propylparaben, and butylparaben,
CIRP, 3(5), 1984)
Propylparaben Mouse Oral LD50 is 6,300mg/kg body weight
(Lewis R, Sax´s Dangerous
Properties of Industrial Materials, 9th ed., Van Nostrand
Reinhold, NY, 1996)
NB. There are some substances, such as eucalyptus (and tea
tree oil), where humans appear to be more sensitive to their
toxic effects on a g/kg body weight basis, than test animals
(Regulatory Guidelines for
Complementary Medicines – Part III, Therapeutic Goods
Administration, 2003).
It is clear from these comparatives that Eucalyptus
oil is between twice and thrice as deadly as the parabens.
In fact, as I pointed out in my initially attached series:
"Following chronic administration, a no-observed-adverse-effect
level (NOAEL) in the rat of 5500 mg/kg is posited."
Eucalyptus oil therefore is deadly at a dose at which Parabens
produce no observable adverse effect.
(Excerpted from my correspondence
with Naturebabes / Tom-e Tots – Stuart Thomson)
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