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Mon Jun 21, 2010 2:39 am  |
Hi everyone,
 just wanted to see peoples opinions on the use of lavender in sunscreens. Two which tick the boxes in other areas for me (badgers and dermalogica sensitive face block) contain it . I saw in another thread a while ago lavender oil causes photosensitivity. Would this put anyone else off using sun screens that contain it. Thanks guys xx : ) |
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Mon Jun 21, 2010 7:45 pm |
| butterfliesandflowers wrote: |
Hi everyone,
just wanted to see peoples opinions on the use of lavender in sunscreens. Two which tick the boxes in other areas for me (badgers and dermalogica sensitive face block) contain it . I saw in another thread a while ago lavender oil causes photosensitivity. Would this put anyone else off using sun screens that contain it. Thanks guys xx : ) |
I use two sunscreens and one of them contains Lavender. ( I mix the two together) I wouldn't worry about it too much. If your applying the correct amount without tanning then it should be working.
I hope this helps.  |
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Tue Jun 22, 2010 12:38 am |
Not only does it cause photosensitivity it can also cause contact dermatitis. One of it's components is also cytotoxic (causes cell death).
Pass. |
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Tue Jun 22, 2010 10:33 am |
Thank you guys!  sunscreens soooo confusing! |
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Tue Jun 22, 2010 10:44 am |
| Josh wrote: |
Not only does it cause photosensitivity it can also cause contact dermatitis. One of it's components is also cytotoxic (causes cell death).
Pass. |
Hi Josh,
Can you post a link to that information about Lavender as all the sources I have on essential oils don't show any precautions other than it not being used by allergic individuals?
TIA |
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Tue Jun 22, 2010 2:28 pm |
| Just Google "lavender cytotoxic" and hundreds of sources will come up. |
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Tue Jun 22, 2010 2:33 pm |
| Josh wrote: |
| Just Google "lavender cytotoxic" and hundreds of sources will come up. |
OK Thanks will do. |
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Tue Jun 22, 2010 2:42 pm |
According to the following it's kind of up for debate?
http://en.m.wikipedia.org/wiki/Lavender_oil?wasRedirected=true
According to advocates of alternative medicine, lavender oil can be used as an antiseptic and pain reliever to be applied to minor burns and insect bites and stings. It is also said to treat a variety of common ailments, such as sunburn and sunstroke.[1] It can also be used in massage oil mixtures, which may be effective in the relief of joint and muscle pain, or in chest rub mixtures for the relief of asthmatic and bronchitic spasm. It is also said to treat head lice when used in a hair rinse mixture, or on a fine comb to eliminate nits. Some say lavender oil may have played a role in the reduction of advanced mammary tumors in lab rats.
In vitro, lavender oil is cytotoxic as well as photosensitizing. A study demonstrated that lavender oil is cytotoxic to human skin cells in vitro (endothelial cells and fibroblasts) at a concentration of 0.25%. Linalool, a component of lavender oil, reflected the activity of the whole oil, indicating that linalool may be the active component of lavender oil.[2] The result of another study showed that aqueous extracts reduced mitotic index, but induced chromosome aberrations and mitotic aberrations in comparison with control, significantly. Aqueous extracts induced breaks, stickiness, pole deviations and micronuclei. Furthermore, these effects were related to extract concentrations.[3]
However, according to a 2005 study "although it was recently reported that lavender oil, and its major constituent linalyl acetate, are toxic to human skin cells in vitro, contact dermatitis to lavender oil appears to occur at only a very low frequency. The relevance of this in vitro toxicity to dermatological application of Lavandula oils remains unclear."[4]
In terms of photoxicity, a 2007 investigative report from European researchers stated that, "Lavender oil and sandalwood oil did not induce photohaemolysis in our test system. However, a few reports on photosensitivity reactions due to these substances have been published, e.g. one patient with persistent light reaction and a positive photo-patch test to sandalwood oil."[5] |
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Tue Jun 22, 2010 2:53 pm |
Every site I check references the same study cited in the post from Wikipedia?
http://www.ncbi.nlm.nih.gov/pubmed/15144499
Here is the study mentioned.
Cell Prolif. 2004 Jun;37(3):221-9.
Cytotoxicity of lavender oil and its major components to human skin cells.
Prashar A, Locke IC, Evans CS.
School of Biosciences, University of Westminster, London, UK.
Abstract
Lavender (Lavandula angustifolia) oil, chiefly composed of linalyl acetate (51%) and linalool (35%), is considered to be one of the mildest of known plant essential oils and has a history in wound healing. Concerns are building about the potential for irritant or allergenic skin reactions with the use of lavender oil. This study has demonstrated that lavender oil is cytotoxic to human skin cells in vitro (endothelial cells and fibroblasts) at a concentration of 0.25% (v/v) in all cell types tested (HMEC-1, HNDF and 153BR). The major components of the oil, linalyl acetate and linalool, were also assayed under similar conditions for their cytotoxicity. The activity of linalool reflected that of the whole oil, indicating that linalool may be the active component of lavender oil. Linalyl acetate cytotoxicity was higher than that of the oil itself, suggesting suppression of its activity by an unknown factor in the oil. Membrane damage is proposed as the possible mechanism of action.
PMID: 15144499 [PubMed - indexed for MEDLINE]
MeSH Terms, Substances
LinkOut - more resources |
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havana8
Moderator
 
Joined: 09 Sep 2005
Posts: 3449
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Tue Jun 22, 2010 5:23 pm |
Thank You Havana, I will read away as I use essential oils I like to keep up to date! |
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