6.8 on average. Women's skin has a slightly lower pH than men's.
http://wiki.answers.com/Q/What_is_the_pH_in_the_human_s...
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The pH of normal, healthy human skin is somewhere between 4.5 and 6. However, this varies with age. Typically, newborns have a pH closer to neutral (pH 7) that quickly turns acidic in order to protect young children’s skin.
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ezinearticles.com/?Importance-of-Your-Skins-pH&id=55208
ezinearticles.com/?Importance-of-Your-Skins-pH&id=55208
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In skin care the human skins pH when altered can cause problems. Learn why it is important to maintain a balanced pH. ... Human skins pH value is somewhere between 4.5 and 6. Newborn babies’ skin pH is closer to neutral (pH7), but it quickly turns acidic. This is probably to protect young children’s skin,
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www.herballuxuries.com/skinsph.htm
www.herballuxuries.com/skinsph.htm
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Today, the term "normal skin pH" is understood to be the pH value of the surface of the skin of the lower arm of a healthy adult male Caucasian. Its mean value lies in the range 5.4-5.9. In most cases, it is determined by means of a flat glass electrode. ... Human Genome...
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www.ncbi.nlm.nih.gov/pubmed/3700100
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The pH of acid in the human stomach, for example, is usually from 1 to 2, which is highly acidic. The skin, on the other hand, is mildly acidic. In addition to helping protect skin from "the elements" (such as wind or pollutants), acid mantle also inhibits the growth of harmful bacteria and fungi.
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www.smartskincare.com/skinbiology/sebum.html
www.smartskincare.com/skinbiology/sebum.html
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NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators. Argonne National Laboratory, Division of Educational Programs, Harold Myron, Ph.D., Division Director.
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www.newton.dep.anl.gov/askasci/gen01/gen01258.htm
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name Nancy W. status other age 40s Question - What effect, if any, would my residential well water that has a ph of 5.5 have on my skin? ... In addition, many soaps and detergent-based bath bars are slightly alkaline (pH above 7). These materials do quite nicely in neutralizing water acidity. The real downside of acidic...
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www.newton.dep.anl.gov/askasci/chem00/chem00332.htm
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Human Skin - pH factor Biological functions, and types ... Maintaining the skin's pH factor helps maintain a proper balance of the "acid mantle" which aids in protecting the body from bacteria and helps prevent moisture loss.
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www.coenzymea.com/human_skin_ph_factor_article.html
www.coenzymea.com/human_skin_ph_factor_article.html
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Look up the pH value or range found on human skin. Also try finding the meaning of "pH balanced". (A skin-care book may be helpful.) Were any products "pH balanced?" Which one(s)? Cite any reference(s) used.
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dwb.unl.edu/Chemistry/LABS/LABS11.html
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