One Size On 'Til Dawn Mattifying Waterproof Setting Spray is a 3.4 oz (143 mL) aerosol-free formula designed to extend the wear of makeup while controlling shine and protecting against moisture. The spray creates a lightweight, invisible barrier that helps makeup resist water, sweat, and humidity without feeling sticky or heavy. It dries down to a matte finish, making it suitable for those with combination to oily skin types, and can be used on normal or dry skin when a matte effect is desired.

The formulation includes film-forming polymers that work to lock in makeup and reduce the need for touch-ups throughout the day. It is free from oils and common pore-clogging ingredients, aiming to minimize the risk of congestion and breakouts. The spray is applied after completing the makeup routine—held at arm’s length and misted evenly over the face in a cross-hatch pattern, then allowed to dry naturally without rubbing or fanning.

This setting spray is intended for use in conditions that challenge makeup longevity, such as hot and humid environments, outdoor activities, long workdays, or special occasions like weddings and parties. It does not alter the color or texture of the underlying makeup, and it works with most liquid, cream, and powder products. The 3.4 oz size meets carry-on travel restrictions, offering a practical option for on-the-go reapplication.

As with any cosmetic product, individual results may vary based on skin type, application technique, and environmental factors. Patch testing is recommended for those with sensitive skin. The spray does not contain SPF and should not be relied upon for sun protection. This description is based on the product’s intended use and disclosed characteristics; no exaggerated claims or comparative statements are made.