Archive for 'Acneiform eruptions'

Tea Tree Oil for Acne

Tea tree oil is an essential oil obtained by steam distillation of the leaves of Melaleuca alternifolia, a plant native to Australia.

Pure, undiluted tea tree oil is found in and online. Tea tree oil is also an ingredient in a number of commercial products, such as gels, lotions, creams, toothpaste, mouthwashes, and shampoos.

Tea tree oil contains a constituent called terpinen-4-ol that is thought to be responsible for most of tea tree oil’s antimicrobial activity. Because tea tree oil can kill bacteria, applying topical tea tree oil to acne lesions has been thought to kill Propionibacterium acnes, the skin-dwelling bacteria that is involved in causing acne.

In a study comparing tea tree oil gel to benzoyl peroxide, tea tree oil had fewer side effects than the benzoyl peroxide, which was associated with itching, burning, stinging, and dryness.

Although tea tree oil is a popular remedy for acne, there has only been one older study on tea tree oil and acne.

A single-blind randomized trial by the Department of Dermatology at the Royal Prince Alfred Hospital in Australia compared the effectiveness and tolerance of 5% tea tree oil gel with 5% benzoyl peroxide lotion in 124 people with mild to moderate acne. People in both groups had a significant reduction in inflamed and non-inflammed acne lesions (open and closed comedones) over the three month period, although tea tree oil was less effective than benzoyl peroxide.

Although the tea tree oil took longer to work initially, there were fewer side effects with tea tree oil. In the benzoyl peroxide group, 79% of people had side effects including itching, stinging, burning, and dryness. Researchers noted that there were far fewer side effects in the tea tree oil group.

Double-blind, randomized controlled trials are needed before we can determine whether tea tree oil can help acne.

Undiluted tea tree oil may cause skin irritation, redness, blistering, overdrying, and itching when applied directly to the skin.

The concentration used in the only study to date was a 5% tea tree oil gel, which was applied to acne prone areas.

A 5% tea tree oil solution can be made by mixing 5 parts tea tree oil to 95 parts water (e.g. 5 mL tea tree oil and 95 mL water).

There are a number of new topical acne products that contain tea tree oil. Have a look at the skin care aisle of the health food store. The company Kiss My Face just introduced a new topical tea tree oil gel that also has other herbal antiseptics, such as witch hazel.

Another place to look would be the drug store or a cosmetics store such as Sephora. DDF has a benzoyl peroxide gel with tea tree oil.

To learn about the safety concerns of tea tree oil, please read the Tea Tree Oil Fact Sheet.

Sources
Bassett IB, Pannowitz DL, Barnetson RS. A comparative study of tea-tree oil versus benzoylperoxide in the treatment of acne. Med J Aust. (1990) 153 (8): 455-458.



Tags: moderate acne, tea tree oil solution, Department of Dermatology, topical acne, oil group

Hormonal Acne In Women

Nearly Half of All Women Experience Acne Flare-ups During the Week Preceding Their Menstrual Period.

Nearly Half of All Women Experience Acne Flare-ups During the Week Preceding Their Menstrual Period.

You are probably aware that HORMONES are the start of the menstrual cycle. For millions of women, it happens like clockwork every month: cramping, bloating, mood swings, and acne. Experts know that acne is influenced by hormones, but research on the subject has been relatively limited - until now that is!

A recent study conducted by dermatologist Alan Shalita, MD, confirmed that nearly half of all women experience acne flare-ups during the week preceding their period. This particular kind of acne is known as hormonal acne. Hormonal acne may fail to respond to traditional therapies, such as topical retinoid and systemic or topical antibiotics.

There are several hints or clues which can help your doctor identify hormonally-influenced acne. Some of these are: Acne flare-ups preceding the menstrual cycle, a history of irregular menstrual cycles, increased facial oiliness Hirsutism (excessive growth of hair, or hair in unusual places) and/or elevated levels of certain androgens in the blood stream. Any one of these is possible evidence of Hormonal Acne.

While hormonally-influenced acne typically begins between the ages of 20-25, it can strike teens and mature women as well, and is most persistent in women over the age of 30. These patients will usually experience lesions on the lower face, especially the chin and the jaw line. Some may have breakouts on the chest and back, most have blemishes exclusively on the face.

The good news is that this type of acne is usually very moderate and limited to inflammatory
papules and small inflammatory nodules as well as occasional comedones (blackheads). So how does it start? Well, Puberty is where it all begins. Starting sometime before adolescence (around the age of nine or ten) the adrenal glands begin to produce dehydroepiandrosterone sulfate (DHEAS), an androgen. Other androgens – the “male” hormones at work in a woman’s body – such as testosterone and dehydrotestosterone (DHT), join in at the onset of puberty. These hormones stimulate the sebaceous glands to secrete more of the skin’s natural oil, or sebum. Naturally, since boys have more “male” hormones, teen acne tends to be more severe in males.

For teenagers acne treatment can be very challenging. This is because their hormones are in a constant state of flux. They may initially respond very well to first-line treatments, such as topical retinoids and benzoyl peroxide, perhaps accompanied by an oral antibiotic. As their bodies develop, however, they may undergo severe hormonal shifts – and stop responding to the current medications. Courses of acne treatment may need to be adjusted more often with teenagers to accommodate these hormonal changes.

There are many women pass into adulthood without “outgrowing” their acne. Others may not develop it until their 20s or 30s, experiencing persistent breakouts the week before their period. Why does this happen? During the course of a normal menstrual cycle (if a woman is not taking any kind of hormonal birth control pill), estrogen levels peak at mid-cycle, then decline as she nears her period. After ovulation, the ovaries begin to produce progesterone, another hormone which stimulates the sebaceous glands. And with the extra oil comes acne.

It is recognized that hormones are usually responsible for acne in a percentage of pregnant women. The sebaceous glands go into high gear during the third trimester, causing oily skin and frequent breakouts. Some women who even experience acne after menopause, when estrogen levels begin to taper off and testosterone becomes the dominant hormone.

What can be done? According to Dr. Shalita, the “wait and see” attitude is particularly ineffective for hormonal breakouts: “Acne that worsens during a woman’s monthly cycle isn’t something that women will grow out of as they get older. Seeing your dermatologist to determine the best treatment plan for acne flare-ups is recommended for the most successful result.

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Tags: hormonally-influenced acne, Acneiform eruptions, topical antibiotics, facial oiliness Hirsutism, jaw line

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