15 ml Bottles: Sample, Serum and Travel
By Joe Joo · 8PCK · Shantou · Updated 26 October 2026
15 ml is the sample and travel size: serum, oil, hand sanitizer and hotel amenities. The closure decides whether it survives a bag.
15 ml is the smallest size that still reads as a product. It is also the size where the closure is the biggest line in the cost sheet.
The free Bottle Spec Checker tests whether your neck fits the closure and whether the wall survives a pump stroke.
30-second check: does your bottle pass? Open ▾
What Fits 15 ml
18/410 covers droppers and small caps; 20/410 covers flip-tops and fine mist. The neck is the whole design decision at this size.
18/410
Dropper and screw cap; serum and oil.
20/410
Flip-top and mist; sanitizer and travel.
Where It Fails
Leaking in a bag from a shallow spigot, and droppers that do not reach the base — 15 ml does not leave room for waste.
What to Send in a Brief
For a 15 ml pack used for samples and serum, five answers settle it: capacity, neck, closure, quantity and whether the pack travels. Those decide the wall, the liner and the carton before a sample is made.
The Three Numbers That Matter
Capacity, neck and wall. Everything else — colour, decoration, carton — follows them.
What We Check Before Quoting
That the closure exists in that neck, that the wall survives the fill, and that the carton protects the shoulder.
What We Do Not Do
Filling, formulation and label design. We supply the container and the closure, tested together.
Common Mistakes at This Size
Two failures dominate returns at this size: a closure that leaks in transit, and a wall thin enough to crack the first time it is dropped.
Both are decided at the specification stage, not at the mould.
Questions We Get on This
What is a 15 ml bottle used for?
Serum samples, travel sets, sanitizer and hotel amenities.
Which neck?
18/410 for droppers, 20/410 for flip and mist.
What is the MOQ?
1,000 pcs per colour.
What is the MOQ for a 15 ml pack?
1,000 pcs per colour on existing moulds.
Can I see a sample first?
Yes — 7 days on stock moulds, with the closure fitted.
Which wall thickness should I specify?
At least 0.5 mm; 0.55 mm where a pump is fitted.
Sizes That Fit This Guide
Get a Price on This, Within One Business Day
Tell us the capacity, the neck and the quantity. You get unit price, lead time and a sample plan — not a catalogue.
Every batch is gauged at the neck and weighed. The documents travel with the shipment.