7.17.2010

The Light Sensitivity of Essential Oil

Some of the essential oil are sensitivity to light. If you used this kind of essential oil, it will be more sensitivity for skin(actually any kind of UV light).And it’s easy for skin to be burn.

Oil itself does not make the skin allergic reactions, but once the smear on the skin, and when exposed to UV light will produce allergic reactions.

Could this essential oil can be use on massage? As long as the massage at least 12 hours later to the sun.

The main cause of light sensitivity is a citrus oil family, when they are returned by press method (Note 1) rather than by distillation (Note 2), the however, some essential oils like lemon, after distillation still has a strong sense after optical activity.

The essential oil composition containing bergaptene is the main cause of light-sensitive.

Contains a very small amount of bergaptene or 5 methoxypsolaren (5 MOP) will affect it? General content of less than 0.000075% would not affect only contain 0.00005% like orange.

Bergamot, Lime and Bitter Orange, in the absence of dilution used, the light will have very serious allergic reaction, but when they are in very low concentrations would not have this situation.

The following essential oils can not be used to deploy in skin tanning lotion, because it can not make you easy to tan, the sun will cause sunburn and skin damage.

The following essential oils is sensitive to light:
European Angelica
Bergamot
Bitter orange (cold method)
Cumin
Dill
Grapefruit (cold method)
Lemon (cold and distillation)
Lemon verbena
Lime (cold and distillation)
Orange
Tangerine
Marigold
Orange (cold method)

Note 1:

When it comes to oil manufacturing methods - "Cold Act" basically refers to the compression, not any heating process performance.

Most of the nuts and seed oil is also used "cold method" extraction, but here the "cold method" refers to a high pressure machine produces high-quality oil, but some manufacturers extracted by chemical means or refined over the way high, and sabotage of such high quality oil.

Let us go back to press extraction of essential oil manufacturing methods, we found that most of the citrus essential oils are used compression method

Note 2:

Aiweisenna, 980 - 1037 AD, an Arab philosopher and doctor, was the first person to use distillation, because of his invention process is perfect, it has not been changed for hundreds of years.

Distillation of volatile liquid is liquid into vapor and then condensing water vapor into liquid, which is now the most popular and useful essential oils extracted cost-effective manner.

The drawback is that high-temperature distillation, the material is still somewhat fragile in this way can not be used or is difficult to extract some of the material can not be used this way.

When using the distillation method, required a high degree of attention to temperature and exposure time at high temperature to avoid damage to the oil itself.

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