ZJ Pack 18-410 PP Slim Serum & Treatment Pump, 0.23cc Dosage with External Spring & Clear Overcap

What this packaging is

Precision-dosed at 0.23cc per stroke, the 18-410 PP Slim Serum & Treatment Pump is engineered for high-value facial formulas where controlled dispensing matters. The external metal spring sits outside the pump body entirely, so it never contacts your formula — a meaningful detail for clean beauty positioning and formula integrity. Built from polypropylene with a glossy collar finish and a clear overcap, it reads professional right out of the box. The 18-410 neck finish opens up compatibility across a wide range of bottles. Manufactured in China, it's purpose-built for face serums, foundations, primers, eye creams, and BB creams — anywhere dose control drives the consumer experience.

Why brands choose this

• Formula integrity through external spring design: The spring sits completely outside the pump chamber, never touching the liquid inside. For brands formulating with actives, oils, or clean-certified ingredients, this eliminates a common contamination variable and supports cleaner ingredient storytelling.
• Precision dosing built for high-performance skincare: At 0.23cc per stroke, this pump delivers a controlled, repeatable dose — ideal for potent serums, eye creams, and primers where over-dispensing wastes expensive product and undermines the consumer experience. Dose control is increasingly expected in prestige skincare.
• Broad format compatibility across multiple face categories: The 18-410 neck finish pairs with a wide range of bottle sizes and silhouettes, giving brand developers flexibility across SKUs — from a slim serum bottle to a foundation pump — without switching pump vendors mid-range.

Decoration