Ace the 2025 Colorado Esthetician Written Exam – Glow Up and Shine Bright!

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Which of the following substances has a pH below 7.0?

Hydrophilic

Hydrophilic substances are attracted to water and have a pH below 7.0, making them acidic. In contrast, alkalis have a pH above 7.0, making them basic or alkaline. Acids, which are hydrophilic substances, have a pH below 7.0 as well. Lipophilic substances are attracted to fats and oils and are not related to pH levels.

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Acids

Alkalis

Lipophilic

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