Contact Sales on +44 (0)1472 240940

Berlin Packaging expands its presence in EMEA with the acquisition of BlueSky.

Images are for representative purposes only

GL18 White Tamper-Evident Closure with Integrated Rim Dropper

  • Product Code: GL18TEW-IRD
GL18 white tamper-evident closure with integrated rim dropper, PEHD/PELD. Fits all GL18 bottles 5ml–100ml. 45° tilt operation. Ideal for retail essential oils, serums and wellness products.
MOQ and lead time applies – Please contact us for further details
Enquire / Sample Request

The GL18 White Tamper-Evident Closure with Integrated Rim Dropper (GL18TEW-IRD) combines first-open tamper evidence with a general-purpose rim dropper insert in a single GL18 assembly, manufactured in PEHD and PELD. The integral tamper-evident ring — moulded as part of the PEHD cap body — provides visible first-open evidence confirming the product has not been accessed prior to purchase, while the PELD rim dropper insert delivers controlled drop-by-drop dispensing when the bottle is tilted to 45°. This combination makes the GL18TEW-IRD the appropriate closure for retail personal care, cosmetic, and consumer wellness products — essential oils, facial serums, botanical oils, CBD preparations, and hair treatments — where tamper evidence is a standard retail expectation and consumer-friendly general dispensing is the appropriate format, but where pharmacopoeial-grade dosing precision is not required.

This closure occupies a well-defined position in the GL18 system: it provides more consumer assurance than the standard rim dropper (GL18W-IRD, which has no tamper evidence) while stopping short of the child-resistant access restriction of the CRC rim dropper (GL18CRCW-IRD). It is the appropriate specification for retail cosmetic and wellness products sold through beauty retail, pharmacy, health stores, and e-commerce channels where consumers expect visible evidence that the product is sealed and untampered at point of purchase, and where the everyday dispensing convenience of a 45° tilt operation suits the end-user experience. As part of the GL18 system (also known as NW18 or DIN168), the GL18TEW-IRD is fully interchangeable across all GL18 glass dropper bottles in the BlueSky range — 5ml to 100ml, in both amber and clear glass — without any change in closure specification. Contact BlueSky to confirm stock availability, MOQ, and TE ring type before specifying.

Additional information

Material

PEHD/PELD
Neck size

GL18

Integral Tamper-Evident Ring — Retail Consumer Assurance

The tamper-evident ring is moulded as an integral part of the PEHD cap body, with TE bridges providing visible evidence of first opening. When the cap is opened for the first time the bridges break and the ring remains on the bottle neck, giving consumers immediate confirmation that the product has not been accessed prior to purchase. For retail essential oils, facial serums, botanical preparations, and consumer wellness products sold through beauty and health retail channels, tamper evidence is a standard consumer expectation that supports brand credibility and retail confidence. Please contact BlueSky’s team to confirm the specific TE ring type for this closure before specifying.

Integrated Rim Dropper — 45° Tilt, Consumer-Friendly Dispensing

The PELD rim dropper insert operates at a 45° bottle tilt, delivering liquid through the insert by gravity without the bottle needing to be fully inverted. This makes it intuitive and convenient for everyday consumer use — the user tilts the bottle toward the application area and drops are delivered directly, without requiring a specific inversion technique or drop-counting discipline. Drop size is influenced by bottle angle, liquid viscosity, and flow rate, making the rim dropper suited to applications where approximate dispensing is acceptable and ease of use is the priority.

General Dispensing — Not for Pharmaceutical Oral Drops

The rim dropper is a general-purpose dispensing format and is not designed to meet the dosing precision requirements of pharmaceutical oral drops, which require ±10% accuracy from the target dose weight in line with European Pharmacopoeia monograph 0672. For pharmaceutical oral drops, regulated liquid supplements, or licensed oral liquid products requiring precise dosing combined with tamper evidence, the GL18TEW-IVD — which combines the TE closure with a precision vertical dropper — is the correct specification.

PEHD/PELD Two-Material Construction

The cap body is manufactured in PEHD (high-density polyethylene), providing structural rigidity, chemical resistance, and the integral TE ring mechanism. The rim dropper insert is manufactured in PELD (low-density polyethylene), which provides the flexibility required for the dropper insert to function correctly at 45° tilt. Both materials offer broad compatibility with cosmetic and personal care liquid formulations including essential oils, aqueous serums, alcohol-based preparations, and botanical oils. Formulation compatibility testing is recommended prior to production, particularly for high-concentration essential oils or solvent-based formulations.

Tamper Evidence Without Child Resistance — Retail Cosmetic Positioning

The GL18TEW-IRD provides first-open tamper evidence combined with general-purpose rim dropper dispensing — without a child-resistant opening mechanism. This positions it correctly for retail cosmetic, personal care, and consumer wellness products where tamper evidence is commercially expected but child-resistant packaging is not a mandatory requirement. For products where child access to the liquid contents presents a safety risk — such as concentrated essential oils in households with young children — the GL18CRCW-IRD, which adds a child-resistant mechanism to the rim dropper configuration, is the more appropriate specification.

 

Universal GL18 Compatibility — 5ml to 100ml

The GL18TEW-IRD is compatible with all GL18 glass dropper bottles in the BlueSky range — 5ml, 10ml, 15ml, 20ml, 30ml, 50ml, and 100ml — in both amber and clear glass. The GL18 neck standard maintains a consistent inner bore diameter of 10.65mm ± 0.15mm across all bottle volumes, meaning this closure specification does not change when bottle size changes within the range. For light-sensitive essential oil, CBD, and antioxidant serum formulations, amber glass provides UV protection that preserves formulation quality over the product’s shelf life.

  • Essential oils and aromatherapy blends
  • Facial serums
  • CBD and botanical oils
  • Hyaluronic acid and retinol serums
  • Hair and scalp treatments
  • Consumer wellness and lifestyle products
  • Topical oral preparations
  • Cosmetic eye and lip serums

Delivery & Returns

Orders for products in our ‘In Stock’ ranges will normally be delivered within two working days. Our product ranges labelled as ‘Product MOQ Applicable’ may be subject to a lead time which will be confirmed to you when we receive your order. For information relating to delivery charges, please refer to the ‘Is there a carriage charge?’ section in our FAQs page.

In some instances, goods can be returned. Please view our full refunds policy in our terms and conditions here: Terms & Conditions.

Core Product Range

We endeavour to hold continuous stock of this product. We expect to stock these ranges for a significant period of time in the future. This ensures you can build ranges around them and rely on their availability both now and in the coming years.

In Stock

We hold these products in our UK warehouses for you and they are available for rapid delivery.

Product MOQ Applicable

These products are not currently available from our UK held stock. However, we can supply you from our flexible and solid, global supply chain. Please note that there are minimum order quantities (MOQs) associated with this product, and lead times may vary depending on the quantity ordered. For more information on MOQs and lead times, please contact: sales@blueskysolutionsuk.com

Additionally, we can create bespoke products for you whether through colour, decoration, or bespoke tooling - to your specification. Our team of product experts will work with you to understand your requirements and place the necessary orders.

Delivery & Returns

Frequently Asked
Questions

What is the difference between this closure and the standard GL18 rim dropper?

Both closures incorporate a rim dropper delivering general 45° tilt dispensing, but the GL18TEW-IRD adds an integral tamper-evident ring providing visible first-open evidence. The GL18W-IRD is appropriate for professional, trade, or non-retail applications where tamper evidence is not a consumer-facing requirement. The GL18TEW-IRD is the correct specification for retail products where consumers expect visible confirmation that the product is sealed and untampered at point of purchase.

When should I choose this closure over the CRC rim dropper?

The GL18TEW-IRD is appropriate where tamper evidence and general dispensing are required but child-resistant packaging is not mandated for the product category. The GL18CRCW-IRD adds a child-resistant opening mechanism for products where child access to the liquid contents presents a safety risk — such as concentrated essential oils, hazardous household liquids, or products subject to child-safety packaging legislation. If you are unsure which specification is required for your product, your regulatory advisor can confirm the applicable packaging requirements for your category and market.

Do I need to provide formulation data to specify this closure?

No. Unlike the vertical dropper, the rim dropper does not require formulation-specific geometric specification — it is a general-purpose dispensing insert compatible with a wide range of cosmetic and personal care liquid viscosities. If your formulation is unusually viscous or contains high-concentration essential oils or aggressive solvents, please contact BlueSky’s team to confirm material compatibility before ordering.

Is this closure appropriate for pharmaceutical oral drops?

No. The rim dropper is a general dispensing format not designed to meet pharmacopoeial dosing precision requirements. For pharmaceutical oral drops and regulated liquid medicines where precise dosing is required alongside tamper evidence, the GL18TEW-IVD — combining a tamper-evident closure with a precision vertical dropper delivering ±10% accuracy in line with European Pharmacopoeia monograph 0672 — is the appropriate specification.

Ready to discuss
this product?

Our packaging specialists can advise on quantities, decoration options, compatible accessories and lead times. No obligation, just fast, expert advise

Enquire Now

What our customers say

Download our

2026 "The Wellness Revolution" Report

Sign up to receive...

the latest news, industry insights and advice straight to your inbox from our team at BlueSky.

Horizon House
Estate Road Five
Grimsby
DN31 2TG

+44 (0)1472 240940

My Account
Contact Us
About Us
FAQs
Brochures

Terms & Conditions
Privacy & Cookie Policy
Accessibility Statement
Modern Slavery Statement
Data Protection Policy
Terms of Use

Quality Policy
Environmental Policy
Health & Safety Policy
Sustainablity
More Policies

Linkedin-in Youtube
Enquire Now

Reminder, if ordering a sample of a bottle, don't forget to order samples of the closures you need and vice versa.

Sample Request

Reminder, if ordering a sample of a bottle, don't forget to order samples of the closures you need and vice versa.

Request Sample Pack

Please note: Free shipping is available to mainland UK addresses only. We review all requests and will reach out to you if we need any additional information before organising the shipment. Thank you for your interest!

Thank you, your form has successfully been submitted.

Thank you for your enquiry, whilst this is an automated message, we want you to know that we have received your enquiry and will be responding to you soon!

If there is anything you wish to discuss urgently, please contact us on +44 (0)1472 240940.

Back to Home