A Complete Guide to Plastic Empty Eyeliner Tubes: What Brands Should Know

In the world of eye makeup, precision matters—both in formulation and in cosmetic packaging. Among all cosmetic containers, the plastic empty eyeliner tube plays a crucial role in delivering a smooth, controlled, and long-lasting application experience. Whether you’re developing liquid eyeliner, gel liner, or innovative hybrid formulas, choosing the right tube can make or break […]