ZJ Pack 20-410 PP Slim Serum & Treatment Pump, 0.23cc Dosage with External Spring & Clear Overcap

What this packaging is

Metal-free liquid contact is the standout engineering move here: the external spring on this 20-410 PP Slim Serum & Treatment Pump sits outside the pump body entirely, keeping formulas uncontaminated — a real win for sensitive, active-ingredient serums and treatments. Built from durable polypropylene with a glossy collar finish and a precise 0.23cc dosage per stroke, it fits neatly into 20-410 neck containers across multiple formats. The clear overcap prevents accidental discharge during shipping and retail. Designed for face serums, foundations, primers, eye creams, and BB creams, with decoration options including electroplating, spray coating, and water transfer printing — strong shelf presence without a custom mold investment.

Why brands choose this

• Metal-free formula contact, built for active-ingredient products: The external spring mechanism sits completely outside the pump body, meaning your liquid never touches metal. This matters for oxidation-sensitive actives like vitamin C, retinol, and peptides — categories where formula integrity is a brand promise, not just a nice-to-have.
• Precise 0.23cc dosage supports consumer trust and product efficiency: Consistent per-pump dosage reduces waste and gives consumers confidence they're using the right amount — a key expectation in the serum and treatment category where consumers are paying for efficacy. Dose control also extends product life, a growing consideration as premium skincare prices rise.
• Decoration versatility supports strong shelf differentiation: Electroplating, spray coating, and water transfer printing options mean this pump can read luxe, minimalist, or bold without tooling changes. For brand teams ranging SKUs across serums, primers, and BB creams, that flexibility across a single component keeps development lean and timelines tight.

Decoration