"A sleek, modern bathroom setting with a futuristic 30ml airless container of purple teeth whitening paste, its dispenser pressed slightly to reveal a vibrant swirl of purple paste. The paste glows subtly to emphasize its whitening power. In the background, a person with a radiant smile and bright white teeth appears, emphasizing the whitening effect. Clean and minimal design with a luxurious feel, perfect for a bold Facebook or Instagram ad