20-410 PP Slim Serum Pump, 0.23cc Dosage with External Spring & Long Overcap

What this packaging is

An external spring design sets this pump apart — the mechanism sits outside the pump body entirely, so it never contacts the formula inside. That's a meaningful detail for serums, eye creams, and other actives-heavy products where metal contamination is a real formulation concern. The 20-410 PP Slim Serum Pump delivers a precise 0.23cc dose per stroke, fitting the standard 20mm 410 neck finish found across most serum and foundation bottles. Built from polypropylene with a PE gasket and dip tube, it includes a twist-lock closure and long overcap for travel and retail safety. Decoration options — electroplating, spray coating, water transfer printing — give brand teams real shelf flexibility for foundation, primer, CC cream, and face serum lines.

Why brands choose this

• Formula integrity through external spring design: The spring sits completely outside the pump body, eliminating metal-to-liquid contact — a critical feature for pH-sensitive serums, vitamin C formulas, and active-loaded eye creams where trace metal exposure can destabilize the product.
• Precision 0.23cc dosing built for face-care rituals: A controlled, repeatable dose per stroke matches consumer expectations for serums and eye creams — categories where over-dispensing is a common pain point. Consistent dosing also supports on-pack usage claims and helps consumers feel confident they're applying the right amount.
• Decoration versatility supports premium positioning: Electroplating, spray coating, and water transfer printing are all on the table, giving brand teams the flexibility to take this slim pump from a mass-market foundation line to a prestige serum launch without switching components. The slim profile reinforces the elevated, clinical aesthetic trending across face serum and primer categories.

Decoration