It was discovered that a number of the violet (or blue) light visible from the sunlight, within a range of 405 to 420 nanometers, activates the Coproporphyrin III found in the acne-causing bacteria, Propionibacterium acnes. The porphyrin destroys and kills the culprit bacteria as it releases singlet oxygen. An amount of 320 Joules per square centimeter of light in the 405-420 nm range prevents the survival and viability of the bacteria. This portion of the light spectrum, which is outside the sun's ultraviolet spectrum, produces minimal sunburn or tanning.
• Blackheads that rise above the surface of the skin and have a black tip.
1. Use tea tree oil as your main topical acne treatment. Tea tree oil is very effective on acne.
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