Yes, if the cap doesn't seal properly, air can get into the bottle and cause the perfume to degrade over time. Some cheaper caps may also release unwanted odors that could affect the scent of the perfume.

To clean a perfume bottle cap, gently wipe it with a soft, damp cloth. Avoid using harsh chemicals or soaking the cap, as this could damage the material or affect the fragrance.

It is recommended to store perfume bottles upright with their caps securely in place to prevent leakage and preserve the fragrance. Avoid storing them in direct sunlight or heat, as this can affect the perfume’s quality.

Most perfume bottle caps are designed for reuse as long as they remain intact and functional. However, it’s important to ensure that the cap still provides a proper seal to maintain the quality of the perfume.

Perfume bottle caps can sometimes be tightly sealed to ensure that the fragrance remains fresh and protected. If the cap is particularly tight, gently twisting or warming it slightly (not too much, to avoid damage) might help loosen it.