Wednesday 11 May 2011

The wicked way of whitening



Some skin-lightening products widely available in the market might not be as effective as they promise

* Published: 10/05/2011 at 12:00 AM
* Newspaper section: Life

Just to brighten her skin, Fah (not her real name) decided to peel it off just like peeling an apple. The only difference is that she used chemicals instead of a sharp knife.

"My skin is actually not too dark," said the 21-year-old university student. "But I just want to see how brighter it can be."

Fah purchased skin peeling products from a website that was recommended by her like-minded peers who also used the products. The set she bought cost around 2,000 baht and comprised three bottles of chemical peeler, two bars of carrot soap, a bottle of rice milk moisturising cream, a bottle of green apple moisturising cream, a bottle of skin conditioning cream and sun protection powder.

"You first apply the chemical substance to the arms and legs, leave it for 10 minutes and then take a shower. Soap and cream is used after the peeling process. The chemical will make the skin dry - so dry that it peels off. Then you really need to stay indoor for about two weeks for new skin that comes out cannot face strong sunlight," explained Fah about how to use chemical skin peeler.

Skin products that have not been certified by Thailand’s Food and Drug Administration are likely to be not up to standard and can pose health risks.

She said her skin looked brighter right after the first use and all her friends also said so.

The fad for skin whitening, which has largely been influenced by the Korean and Japanese beauty trend, show no signs of abating. Products specially developed to whiten the skin have been widely available, especially on the internet, despite several skin-whitening-related horror stories reported in recent years.

Since last year, Thailand's Food and Drug Administration (FDA) has enforced regulations regarding the sale of cosmetics and skin products, making its approval stamp compulsory for all cosmetics that are put on the shelf. But despite such enforcement, a large number of products sold on websites as well as in some shops escape the FDA's magnifying glass. Worse still, beauty-conscious consumers seem to shrug off the FDA approval on the merchandise. And of course, Fah is one of them.

"I don't really care because from what I studied, the FDA can't really guarantee anything. So I don't care," Fah said.

But according to Associate Professor Nopadon Noppakun from Chulalongkorn University's Division of Dermatology, Department of Medicine, skin products that have not been certified by the FDA, including sunscreens, skin-whitening cream, chemical skin peelers and so on, are likely to be not up to standard and can pose health risks.

"First we have to understand that the majority of skin products contain chemical substances. What we have to ensure is whether or not there are too many chemicals in some certain products and whether they have undergone laboratory safety tests to check whether they can cause allergies or blackheads," said Dr Nopadon, who is also president of the Dermatological Society of Thailand.

The skin whitening trend, Dr Nopadon added, is an issue that the Dermatological Society of Thailand as well as the FDA have been campaigning about during the past few years. Skin whitening methods, be they chemical peels, laser treatments or injections, only render temporary results. Worse, if carried out in a wrong way, they can permanently darken the skin.

Take chemical skin peeling, for example. The technique has actually been practiced among dermatologists with the aim to get rid of dead skin. The process involves skin specialists using a chemical solution that causes the dead skin to slough off and eventually peel off. Chemical solutions usually used in the treatments include trichlor acid, beta hydroxy acid and alpha hydroxy acid, commonly known as AHA.

How much and how deep the skin can peel off, the doctor said, depends on the intensity and the quantity of the chemical solution applied. And the longer the chemical solution is left on the treated area before being rinsed off, the deeper the skin can be peeled.

Dr Nopadon noted that chemical skin peeling cannot brighten the skin permanently. And if the peeling is done without the close supervision of specialists, it is likely that the chemical substances can harm the inner layer of the skin.

"The outermost layer of the skin is called the stratum corneum. It serves as a protective barrier that interfaces with hostile environments. It also prevents water from evaporating through the skin. It is a natural protection against sunlight as well. If you peel it off, it simply means you have less protection against sunlight. In the long run, the skin will get easily irritated," the dermatologist said.

But is chemical skin peeling really able to make the skin brighter?

Melanin is produced by the body and located in the outer layer of the skin, Dr Nopadon explained. The skin naturally sheds the pigment through dead skin cells, but this usually happens little by little. If you use chemical substances to peel off the dead skin, of course the melanin goes with the dead skin, but the chemical peeling does not rid of so significant amount of pigment that it could cause the change of skin colour. The skin might appear a bit brighter just like when you rub off dead skin during a shower. But after a while, your skin will revert to the colour it used to be.

"The most important thing to be worried about is that if you happen to be allergic to the chemical used during the peeling process, your skin might become even darker," warned the dermatologist, added that chemical skin peeling should be carried out only by skin specialists for safety reasons.

Besides chemical skin peelers, glutathione products are also becoming very popular among those who are determined to brighten and rejuvenate their skin. Glutathione acts as an antioxidant that the body naturally uses in several systems and functions. According to Dr Nopadon, only an adequate amount of glutathione intake can whiten the skin - but only temporarily.

Our body produces two types of melanin: red melanin and brown melanin, the specialist said. Both the amount and type of melanin produced is controlled by a number of genes. Red melanin is found in the skin of Caucasians, while brown melanin is found in Asian skin.

Glutathione cream, glutathione tablets, glutathione drinks and glutathione supplements widely available and advertised in the media are actually not able to lighten the skin colour. This is because, the doctor said, only a considerable amount of glutathione intake can affect the way the body produces melanin and can generate the production of more red melanin pigment. Apparently the oral and external use of glutathione products is not able to make that happen.

"Some skincare clinics offer intravenous glutathione injections to whiten the skin," Dr Nopadon said. "But the intravenous use of glutathione poses an extremely high risk of to those who are allergic to the chemical. There have been cases in which patients developed an allergic reaction to glutathione injections and the clinic operators were arrested."

Fah is still fortunate that she has yet to try glutathione injections despite the fact that some of her friends have already done so. While chemical skin peeling only involves external use, she conceded that she is quite afraid of the consequences of the glutathione injection given that the chemical will be in her bloodstream and the side effects might be too severe to handle.

As a skincare advocate, Dr Nopadon is of the opinion that the colour of the skin does not really matter. More important is how to keep your skin clean and moist. Chemical peeling, injections or any other skin-whitening technologies which claim to be able to change the skin colour can only create short-term effects. They can never change human genes.

"The best way to prevent your skin from getting darker is to protect yourself from strong sunlight," advised the dermatologist. "Sunscreens can only help protect you to some extent. But it is best to use an umbrella or wear on a hat every time you are exposed to sunlight."
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