ZJ Pack 24/400 PP Serum/Treatment Pump, 0.48cc Dosage, Twist Lock

What this packaging is

Precise 0.48cc dosage delivery sets this pump apart for formulas where consistency matters — serums, treatments, and leave-on moisturizers where over-dispensing costs brands money and frustrates consumers. The 24/400 PP Serum/Treatment Pump pairs a 24mm neck with a standard 400 finish, making it broadly compatible across bottle programs. Built from polypropylene with an external spring mechanism that keeps metal completely isolated from product, it's a smart call for sensitive or active formulations. The twist lock prevents in-transit leakage and accidental priming. Finish options include electroplating and spray coating for brands that want a cohesive, elevated look across their lineup.

Why brands choose this

• External spring keeps metal out of your formula: The spring sits outside the pump body entirely, so your product never contacts metal — a critical detail for active ingredients, preservative-sensitive formulations, and brands making clean or metal-free claims.
• 0.48cc dosage precision reduces waste and builds consumer trust: Controlled dispensing means consistent dose every time, which matters for high-value serums and treatments where consumers notice quickly if a pump delivers too much or too little — and where overuse hits your cost-per-use hard.
• Broad 24/400 compatibility expands your bottle options: The 24mm neck with 400 finish is one of the most common standards in skincare and personal care, so this pump integrates easily into existing bottle tooling across hand soap, face moisturizer, and hair treatment formats — simplifying development and ranging across a portfolio.

Decoration