Wagner Professional Ultra Magnesium Tropical Night in a 240g formulation is likely a magnesium supplement designed to be taken before bed, possibly in a powder form that can be mixed with water or a beverage.

Magnesium is an essential mineral that plays a crucial role in numerous bodily functions, including muscle function, nerve transmission, and bone health. Some people also find that magnesium can help promote relaxation and support better sleep.

The "Tropical Night" variant might contain additional ingredients or flavors to enhance its sleep-supporting properties, potentially including natural compounds known for their calming effects, such as certain herbs or amino acids.

As with any supplement, it's essential to follow the recommended dosage instructions provided on the product label. If you have specific health conditions, are pregnant or breastfeeding, or are taking medications, it's advisable to consult with a healthcare professional before starting a new supplement to ensure it's suitable for your individual needs and won't cause any adverse effects or interactions.