Alkaline pH Skin Problems
Skin is specially adapted to protect against harmful bacteria and irritants. One of the most important factors in healthy skin is making sure this protective layer stays intact.
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Normal pH of Skin
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The human skin is covered by a thin layer made up of sebum, urea and other amino acids that have a slightly acidic pH of 4.5 to 6.0.
Purpose
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The "acid mantle" acts to inhibit bacterial growth on the skin and keep keratin proteins intact. Keratin keeps skin firm and young-looking, and when found at the skin's surface, it acts as an armor against irritants and foreign particles.
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Warning
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Alkaline is the opposite of an acid; it neutralizes acids and makes them less potent. Alkalines on the skin will break down the acid mantle, making the skin vulnerable to bacteria, fungi and other irritants.
Considerations
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A single wash with an average to mild soap will shift skin pH levels towards alkaline. This generally takes a few hours to normalize. Frequent washing with harsh soaps or detergents will break down the skin's acid mantle. Once damaged, the acid mantle can take up to 14 hours to repair.
Skin Problems
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Several skin conditions can cause raised, or alkaline, pH levels on the skin: eczema, contact dermatitis, atopic dermatitis and dryness.
Systemic Diseases
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Diabetes, chronic renal failure and cerebrovascular disease are internal factors that result in raised pH levels on the skin. The exact cause is unknown but is believed to be related to low levels of phospholipase and abnormal sweat secretion.
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References
Resources
- Photo Credit Woman In Bath image by Jarek Miarka from Fotolia.com
