Thursday, June 24, 2010

Aromatherapy Favorites: The Topical And Aromatic Therapeutic Applications Of Sandalwood

By Harriet Bliss

Sandalwood is both a classic scent and a classic medicine. Used as an aromatic for over 4000 years, and as a medicine in the Ayurvedic system for perhaps a millennium, the wood itself has been greatly valued by mankind. The essential oil, while only becoming popular in the last hundred years, is a truly classic scent, with important science-proven therapeutic medicinal applications. Whether it be for the body or mind, sandalwood oil can offer effective support. Here's a look at the therapeutic applications of this treasured oil, and how you too might benefit from its medicinal magic.

First just a little background -- sandalwood essential oil is steam distilled from the heartwood of the sandalwood tree. Sounds pretty straightforward, until you learn that sandalwood is actually a parasite; it grows only on certain other trees in tropical environments. One cannot simply put a sandalwood seedling in the grown and coax it to grow, it has to be planted next to the right host tree, already of a certain age, for it to climb up. When harvesting the wood, which is very slow to grow, both trees need to be cut down. Clearly this presents challenges for this important resource.

The wood considered the world's finest is the Santalum album species of India. The trees have been so over-harvested however that they are now endangered. In India and Nepal, it has been decreed that the governments of these nations are now the owners of all the sandalwood trees in these nations. Sandalwood oil has essentially come to a stop in these countries, and the only "legal"oil left is several years old, produced before the ban went into effect. On a very positive note, the acclaimed Indian species of the tree is under large-scale cultivation in Australia (a producer of a very pleasant wildcrafted essential oil as well), though these have not reached maturity in numbers for commercial availability of the essential oil.

Obviously there must be something to this oil for it to be so prized! While the oil and the wood have been closely tied to spiritual practices for thousands of years, research laboratories are only just now uncovering some profound medicinal properties. A paste made of the wood has historically been used as medicine for the skin, and now it's been discovered the essential oil alone can actually prevent the formation of skin cancers. When skin is pre-treated with the oil, then exposed to potentially damaging quantities of ultra-violet radiation, the formation of cancerous tumors is significantly reduced.

Researchers at South Dakota State University, Department of Pharmaceutical Sciences, noted "alpha-santalol, a major component of sandalwood oil, is effective in preventing skin cancer in...UVB-induced skin cancer development." Researchers at the University of Colorado, Denver, noted that the oil caused apoptosis (normal cell death) of cells that were on their way to becoming cancerous. Clearly the essential oil makes an important therapeutic contribution to skin care formulations for those spending a lot of time in the sun.

Aside from its therapeutic effects from topical application, the oil's aroma deeply affects our psyche. The rich, elegant scent has been shown to be both stimulating and calming at the same time. The result is a sense of clarity and awareness. Subjects being researched reported the effects of the whole sandalwood oil, and that of "alpha-santalol". It was found that the individual constituent was stimulating to alertness and mood, though only the whole oil also resulted in greater relaxation and vigor. This very interesting mix of effects on the mind, which correlate well with the oil's use as a meditation aid. A drop or two on the wrists, temples, or forehead is a great way to enjoy the aroma for this purpose.

Interestingly, while the oil heightens awareness, it actually supports deeper, more restful sleep. Research on the inhalation of the aroma showed that study participants usually challenged to get a good rest spent much less time awake, and the total time spent in "rapid eye movement" sleep was also increased. The affect was attributed to the oil's action in the bloodstream after inhalation, not on the sensing of the aroma. So a gentle massage with the oil may be just as effective as using a diffuser for improved sleep with the oil.

These are only a few of the important health benefits available from sandalwood essential oil. It has a host of other wonderful skin-care properties, being used for nearly every skin care condition imaginable. It's also an excellent fixative for natural perfumery, functioning as the base note in many fine colognes and perfumes. Because the chemical profile of the oil from the three primary sources on the globe are relatively close, you can generally use any of these for the therapeutic effects described here. For perfumery and other aromatic applications, try sampling oils from Australia and the South Pacific island of Vanuatu, in addition to an Indian oil if you can acquire it. This way you can become familiar with the range of aromas -- investing in a quantity of the oil once you find your favorite is a great idea. The aroma gets even better as the oil ages, so both the price and your appreciation for your stock will increase over time.

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