In the competitive landscape of hair care packaging, 300ml/400ml/500ml empty plastic bottles have become a go-to choice for brands seeking a perfect blend of practicality, versatility, and consumer appeal 🧴. Tailored specifically for shampoo products—ranging from affordable daily-use lines to high-end salon-grade formulas—these containers address the diverse demands of both businesses and end-users, bridging the gap between functional design and brand customization.