This product requires no complex setup; it is ready to use directly from the bottle. Ensure the first spray is away from your face to prime the atomizer. For compatibility, it is designed for adult male skin. If you have sensitive skin, perform a patch test on a small, inconspicuous area first. To care for your Diesel Plus Plus Masculine Eau de Toilette, always store it in a cool, dark place away from direct sunlight, extreme temperatures, and humidity. Ensure the cap is securely fastened after each use to prevent evaporation and preserve the fragrance's integrity. Keeping it in its original packaging can also offer additional protection.