Euro Dropper Caps

Euro dropper caps give you precise, drop-by-drop control over essential oils, tinctures, serums, and other liquid formulas — without needing to buy a separate insert. Each cap ships with the dropper insert built in, so it snaps onto a DIN 18 Euro bottle and dispenses one drop at a time the moment you invert it. We stock these in tamper evident HDPE and PP, in black or white, sized to fit 5 ml through 100 ml bottles.

Looking for the bottles to go with them? Our Euro bottles are sold separately so you can mix and match cap material, color, and bottle size without paying for a fixed set.

Precision Dosing for Essential Oils and Tinctures

If your formula needs exact drop counts — a 3-drop dilution ratio, a 10-drop tincture serving — the dropper insert is doing the real work here. It narrows the opening so the liquid comes out in controlled drops instead of a stream, which matters just as much for a home aromatherapist measuring lavender oil as it does for a lab measuring a reagent. The tamper evident ring at the base breaks visibly on first use, so your customer knows the seal hasn't been touched before it reached them.

HDPE vs. PP: Picking the Right Cap Material

HDPE caps are the more affordable, general-purpose option and hold up fine against most essential oils and water-based tinctures. PP (polypropylene) caps cost a little more but resist a wider range of solvents and stronger essential oil blends — citrus oils especially can degrade weaker plastics over time. If you're not sure which one your formula needs, a small sample order is the cheapest way to test compatibility before you commit to a full case.

Built for Reliable, Repeatable Sealing

These caps thread onto a standard DIN 18 neck finish, so there's no guesswork matching cap to bottle across our Euro bottle sizes. The tamper evident band gives your customers visible proof of an unopened product — something retailers and private label brands increasingly expect as a baseline, not an upgrade. And because the dropper insert is molded into the cap itself, there's one less loose part to lose or misassemble on a packaging line.

Who This Is For

• Essential oils and aromatherapy — precise drop dosing for single oils and blends
• Tinctures and herbal extracts — controlled, repeatable serving sizes
• Cosmetics and skincare — serums, facial oils, and treatment drops
• Pharma and supplement brands — verify compatibility for your specific formula and application before large-scale production
• Private label brands — pair with custom labels for a finished retail look
• Food and beverage — flavor extracts and food-grade liquid colorings
• DIY and craft — small-batch candle scents, soap fragrance, and home projects

FAQ

What sizes do Euro dropper caps come in?
We carry DIN 18 dropper caps sized for 5 ml, 10 ml, 15 ml, 30 ml, 50 ml, and 100 ml Euro bottles, in both HDPE and PP, in black or white.

Do the caps come with the bottles?
No — caps and bottles are sold separately so you can choose material and color independently. Check our Euro bottle catalog for matching bottles.

What's the difference between HDPE and PP caps?
HDPE is a solid general-purpose option for most oils and tinctures. PP holds up better against stronger solvents and citrus-based essential oils, so it's worth the small upgrade if your formula is on the harsher end.

Are these caps food safe?
The HDPE and PP materials we use are food-contact-safe grades, but always verify compatibility for your specific formula and intended use before production.

Can I order a sample before buying in bulk?
Yes — samples are available so you can test cap fit and material compatibility before placing a full wholesale order.

What's the minimum order?
Minimums vary by cap size and material — case counts range from 150 to 800 units per box depending on the variant. Check each product page for exact case pack size.

How fast does shipping take?
We've shipped to 5,000+ customers since 2018, all from US-based inventory, with orders typically arriving in 3-5 business days.