White petrolatum, also known as petroleum jelly, serves several important functions in the preparation of white wax ointment:
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Base Formation: White petrolatum acts as a primary ointment base. It provides the desired consistency and texture, allowing for easy application and spreadability on the skin.
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Emollient Properties: It has excellent emollient properties that help to soften and soothe the skin. This is particularly beneficial for dry or irritated skin.
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Hydration: White petrolatum creates a barrier on the skin's surface, reducing transepidermal water loss and helping to maintain skin hydration.
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Stability: It helps to stabilize the formulation, ensuring that the mixture remains homogeneous and does not separate over time.
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Occlusive Layer: As an occlusive agent, white petrolatum prevents moisture loss and protects the skin from external irritants and contaminants.
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Compatibility: It is generally well-tolerated and compatible with a wide range of active pharmaceutical ingredients, making it suitable for various formulations.
Overall, white petrolatum plays a crucial role in enhancing the effectiveness and usability of white wax ointment for dermatological applications.
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