ZJ Pack 24-410 PP Serum & Treatment Pump, 0.23cc Dosage with External Spring & Domed Clear Overcap

What this packaging is

An external spring that never touches your formula — that's the standout engineering behind this 24-410 PP Serum & Treatment Pump. By keeping the spring outside the pump body, it eliminates a common contamination point, making it a smart pick for sensitive actives, serums, and treatment formulations. The precise 0.23cc dosage delivers consistent output every time, whether you're filling a face serum, foundation, primer, eye cream, or BB cream. The domed clear overcap adds a polished, retail-ready finish without extra tooling. Made in China with a universal 24-410 neck finish, it pairs with a broad range of bottle formats — giving brand developers real flexibility across SKUs.

Why brands choose this

• External spring keeps your formula uncontaminated: The spring sits fully outside the pump body, never touching the product inside. This matters most for high-actives formulas — serums with vitamin C, retinol, or peptides where material contact can degrade efficacy and shelf life.
• Precise 0.23cc dose control builds consumer trust: Consistent dispensing prevents waste and over-application — a growing consumer expectation in treatment skincare as brands emphasize efficacy per drop. It reinforces the clinical credibility of serums, eye creams, and primers.
• One pump component, five category applications: Compatible with face serum, foundation, primer, eye cream, and BB cream, the standard 24-410 neck finish lets brand teams consolidate components across an entire product range — simplifying procurement and reducing development timelines.

Decoration