GUERLAIN Kiss Kiss Blur Matte Lipstick 1.85g - 837 Deep Iris - Purple

'Kissproof' refers to the lipstick's ability to provide long-lasting hold with minimal transfer, designed to stay on through kissing and other forms of contact for up to 24 hours.

To refill, gently pull out the empty lipstick bullet from the golden case. Then, insert a new refill cartridge into the case until it clicks securely into place. The case itself is designed to be reusable.

The formula is enriched with ingredients like honey, beeswax, royal jelly, and propolis extract, known for their beneficial properties. However, if you have specific sensitivities, it's always recommended to perform a patch test.

This lipstick offers a 'blur matte' finish, which is a softer, diffused matte look, combined with a hydrating formula for comfort. Traditional mattes can sometimes be drier or more opaque.

By choosing a refill, you reduce waste. Guerlain states this choice saves packaging weight, CO2, and fossil fuels compared to purchasing two complete lipstick products.

While designed for long wear on its own, you can layer a clear balm or gloss over the top, but this may affect the longevity and matte finish. It's best applied to clean, dry lips for maximum performance.

Ensure lips are well-exfoliated and moisturized before application. The honey and other hive ingredients are designed for comfort, but very dry lips may still require pre-treatment.

Ensure the bullet is twisted sufficiently. If resistance is met, do not force it. Check for any obstructions and ensure the refill is properly seated if recently replaced.

While designed for minimal transfer, some transfer can occur with very oily foods or prolonged contact. Blot lips gently after application and allow the formula to set for a few minutes for maximum longevity.

The blur matte finish is subtle and designed to soften the appearance of lips. For a more pronounced matte effect, ensure lips are completely dry before application and avoid over-application.