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Intrinsic and Extrinsic Factors Affecting Skin Surface pH
Current Problems in Dermatology
|August 22, 2018
Summary
Petrolatum-based emollients help maintain healthy skin acidity. This study clarifies that these products stabilize skin pH, debunking previous findings of pH increase due to measurement artifacts.
Area of Science:
- Dermatology
- Biochemistry
- Cosmetic Science
Background:
- The skin's natural slightly acidic pH, known as the
Purpose of the Study:
- To investigate the effect of petrolatum-based emollients on skin pH.
- To address discrepancies in previous studies regarding emollient impact on skin pH.
Main Methods:
- Utilized traditional skin pH measurement techniques.
- Analyzed the influence of petrolatum-based emollients and their components on stratum corneum pH.
Main Results:
- Identified that certain petrolatum-based emollients create a protective barrier, aiding in maintaining skin's natural acidity.
- Demonstrated that observed increases in skin pH in prior studies were likely artifacts of the measurement technique.
- Provided evidence that emollients stabilize, rather than negatively affect, balanced skin pH.
Conclusions:
- Petrolatum-based emollients can support the skin's natural acid mantle.
- Researchers and clinicians should consider potential measurement artifacts when evaluating emollient effects on skin pH.
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