Q9: My pump is not dispensing properly. What could be the issue?
• Viscosity:
If a formula is highly viscous and lacks flowability, it cannot quickly fill the pump chamber, causing the pump to draw air instead of product.
• Our Quality Standard:
Our pumps are qualified by a water test, requiring product dispensing within 10 initial primes/strokes.
Meticulously crafted to offer durability, functionality, and style for all your packaging needs.
Q9: My pump is not dispensing properly. What could be the issue? | Innovative Skincare & Cosmetic Packaging - COSJAR
COSJAR specializes in luxury cosmetic packaging that blends sustainability with elegance. From refillable acrylic jars to airless bottles, our solutions help premium brands stand out.
All products are ISO-certified and customizable—ideal for clean beauty, high-performance formulas, and brand-conscious developers who demand excellence.
Trusted by global skincare leaders for over 40 years, we combine design precision, material innovation, and sustainable thinking in every package.



