No, ice water does not actually close pores. While applying ice or using very cold water may temporarily reduce the appearance of pores by contracting the skin's arrector pili muscles, this effect is only temporary. Once your skin returns to its normal temperature, the pores will revert to their original size.
Understanding Pores
It's crucial to understand that pore size is primarily determined by genetics and isn't significantly impacted by water temperature. The appearance of pores changing is due to the skin's temporary reaction to cold, not the pores themselves closing.
- Temporary Tightening: Cold water causes a temporary tightening of the skin, making pores appear smaller. This is similar to how cold temperatures can temporarily reduce puffiness. [Reference 1] mentions that the arrector pili muscles contract, creating an illusion of smaller pores.
- No Long-Term Effect: Reputable sources, including [Reference 5, 7, 8], consistently state that cold water does not permanently close pores. The size of your pores remains unchanged. [Reference 6] highlights the misconception that cold water shrinks pores.
- Conflicting Information: Some sources suggest that cold water can make it harder to clean pores if dirt is already present. [Reference 9] explains this concern, indicating that the temporary shrinking of pores could trap dirt and debris.
The Myth of Pore Opening and Closing
Many believe pores open and close in response to temperature changes. However, [Reference 3] clarifies that the observed changes are due to the blood vessels in the face reacting to temperature fluctuations rather than the pores themselves opening or closing.
Conclusion:
While cold water can temporarily make pores appear smaller, it doesn't actually close them. The effect is purely cosmetic and temporary.
