Louisiana Esthetics State Board Practice Test

Question: 1 / 400

What is the recommended pH range for most skincare products?

3.5 to 4.5

4.5 to 5.5

The recommended pH range for most skincare products is 4.5 to 5.5, which closely aligns with the natural pH of healthy skin. This slightly acidic range helps to maintain the skin's barrier function, supporting its ability to protect against environmental stressors while preventing the growth of harmful bacteria.

Formulating products within this pH range ensures compatibility with the skin's natural microbiome and reduces the risk of irritation. Products that are either too acidic or too alkaline can disrupt the skin's protective barrier, leading to dryness, irritation, or increased sensitivity. Consistently using skincare products within the 4.5 to 5.5 pH range can contribute to overall skin health and efficacy in treatment properties.

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5.5 to 6.5

6.5 to 7.5

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