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Mon Jul 12, 2010 5:43 pm  |
Kassy A or anyone -
What is an agent or ingredient that fits the descriptin "an agent to reduce melanin pigment to colorless?"
Also, what is an ingredient that is a tyrosine competitor?
Thanks! |
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Mon Jul 12, 2010 6:12 pm |
I know that hydroquinone, kojic acid, and azelaic acid are used to lighten hyperpigmentation but I don't think they 'bleach' melanin per se to colorless. Rather, they inhibit the production of melanin in the first place.
Tyrosine is an amino acid, not a brand so there is no 'competitor' per se. Also, it is used to treat various issues including ADD, Parkinson, PMS, narcolepsy so a substitute or alternative product would depend on what you are trying to treat. |
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40, Asian, Fitpatrick III with mostly moderate hyperpigmentation and isolated severe. Currently on Obagi Nu-Derm. |
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Mon Jul 12, 2010 6:28 pm |
I am confused by the question to reduce it to colorless we need melanin to protect our bodies in more ways than one?
http://www.wisegeek.com/what-is-melanin.htm
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Also called pigment, melanin is a substance that gives the skin and hair its natural color. It also gives color to the iris of the eye, feathers, and scales. In humans, those with darker skin have higher amounts of melanin. By contrast, those with less pigment have lighter or more fair skin coloring.
Melanin, sometimes referred to as a chemical, is formed as part of the process of metabolizing an amino acid called tyrosine. In the skin, melanin is formed by cells called melanocytes. Certain medical conditions, such as albinism, are associated with the lack of melanin. Albinism is a condition marked by the abesnce of a normal amount of pigment in the body. Animals, humans, and even plants can have albinism.
Albinism exists in a number of variations. Depending on the type of albinism, the skin, hair, and eyes may all be affected. In fact, ocular albinism affects not only the color of the eyes, hair, and skin, but also results in poor vision. Additionally, some types of melanin deficiency are associated with increased mortality rates.
Melanin provides many benefits to human beings. One of the most recognized benefits involves ultraviolet rays of the sun. Melanin provides a natural protection against the harmful effects of these rays. However, it does not provide complete protection from the sun, and individuals with darker skin tones are still at risk from the sun's damaging rays.
Generally, those with darker skin tones and more melanin are able to tolerate exposure to the sun for hours without getting sunburn. By contrast, a person with lighter skin may get sunburn after spending only minutes in the midday sun. Skin cancer is directly related to exposure to the sun and the presence of less than optimal amounts of pigment. Sun exposure has even been linked with cataracts.
Melanin is also a mechanism for absorbing heat from the sun. This purposes is of particular importance to cold-blooded animals. Snakes, lizards, certain types of fish, and a wide range of other animals depend on their surroundings, including the rays of the sun, to establish and maintain their body temperatures.
Also important for sharpness of vision, melanin serves to minimalize the number of light beams that enter the eye. It also provides for the absorption of scattered light within the eye. In this way, pigmentation allows for more keen sight. |
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I'LL SEE YOU ON THE DARKSIDE OF THE MOON.... |
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Mon Jul 12, 2010 6:31 pm |
| I was curious about skin brightening ingredients and both these terms came up regarding types of ingredients. Competitors was not meant as McDonalds vs Burger King as far as I can ascertain. |
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Mon Jul 12, 2010 9:20 pm |
This is a great article!! |
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No longer answering PM's due to numerous weird messages. |
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Tue Jul 13, 2010 6:10 am |
Anyone looking for the actual article with illustrations intact can find it here:
http://www.aznaturals.com/skinwhite.pdf |
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40, Asian, Fitpatrick III with mostly moderate hyperpigmentation and isolated severe. Currently on Obagi Nu-Derm. |
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