How do water-in-oil emulsions typically compare in content?

Water-in-oil emulsions are characterized by having a larger proportion of oil compared to water. This is significant because the oil phase is more dominant within the emulsion, which influences the emulsion’s properties such as texture, consistency, and stability. These emulsions usually feel greasier or more occlusive on the skin, making them suitable for moisturizing products intended to provide a protective layer and prevent water loss.

In contrast, other types of emulsions, such as oil-in-water emulsions, have a higher concentration of water, resulting in a different texture and feel that is generally lighter and more hydrating. Understanding the balance of water and oil in emulsions is crucial for estheticians when selecting products for specific skin types and conditions. Therefore, the emphasis on a smaller amount of water combined with a greater amount of oil is what defines the composition of water-in-oil emulsions.