ZJ Pack 20-410 PP Serum Pump, 0.23cc Dosage with External Spring

What this packaging is

An external spring that never touches the formula — that's the standout engineering behind the 20-410 PP Serum Pump with 0.23cc Dosage. Built for high-viscosity skincare and cosmetics, this polypropylene pump fits a standard 20-410 neck finish and is purpose-built for face serums, foundations, primers, eye creams, and BB creams. The external spring design keeps the mechanism completely isolated from the liquid, making it a smart choice for sensitive, active-heavy formulations where contamination risk matters. A glossy collar, slim actuator, and clip lock for travel safety round out the package, with electroplating, spray coating, and water transfer printing available for brand customization. Manufactured in China for cost-effective scalability, this pump gives brand developers a clean, precise dispensing experience that matches the performance expectations of prestige skincare.

Why brands choose this

• External spring protects formula integrity: The spring sits entirely outside the pump body, never contacting the product inside. For sensitive, active-rich formulations — peptides, retinoids, vitamin C — this is meaningful contamination prevention that supports both product stability and brand credibility.
• Precision 0.23cc dosage built for high-viscosity applications: Controlled dispensing matters when formulas are expensive or potent. The 0.23cc dose output gives consumers consistent, waste-free delivery across serums, foundations, primers, eye creams, and BB creams — categories where over-dispensing erodes product value and trust.
• Wide decoration compatibility for brand differentiation: Electroplating, spray coating, and water transfer printing options make this pump highly adaptable across brand aesthetics — from clean minimalism to textured luxury finishes. With the 20-410 neck finish being one of the most widely used standards, it integrates easily into existing or new container development programs.

Decoration