G-TL™

The first culture medium specifically designed for time-lapse.

Description

G-TL is a bicarbonate buffered medium containing hyaluronan and human serum albumin (5 mg/ml) for culture of embryos from fertilisation to the blastocyst stage and for transfer. Gx-TL has a unique combination of triple antioxidant protection for improved embryo viability.

Purpose

Medium for culture of embryos from fertilisation to the blastocyst stage.

Application

For use after pre-equilibration at +37°C and 6 % CO2.

Storage

Store dark at +2 to +8°C

For truly undisturbed time-lapse culture

Time-lapse culture removes time limits and stresses from embryos during assessment while adding power to classic morphology. G-TL is a medium in the G-Series™ designed to optimise the use of time-lapse technology, allowing truly undisturbed time-lapse culture.

Gx-TL has a unique triple antioxidant protection to improve embryo viablity. Acetyl-L-Carnitine, Alpha-Lipoic Acidand N-Acetyl-L-Cysteine are working together to protect the embryo from oxidative stress.

Gx-TL with triple antioxidant protection

Reactive oxygen species are ubiquitous throughout any given IVF cycle. And they pose a significant threat to your embryo culture. To keep your embryos out of harm’s way, we have developed a unique triple antioxidant protection for improved embryo viability. The three antioxidants have been added to our culture media, Gx-TL, to form a protective barrier against oxidative stress.

Balancing stresses

G-TL provides uninterrupted culture conditions in an optimised culture environment to maximise embryo viability. The balanced mix of amino acids in G-TL is based on new knowledge about embryo metabolism and consumption of media constituents1. G-TL is designed to reduce ammonium load from breakdown products, while providing an optimised supply of amino acids for development. 

G-TL has been shown to give high results when compared to sequential culture systems as well as monophasic culture systems.

REF: 1. Wale and Gardner, Biology of Reproduction v2012;87(1):24, 1-8.

Why you should use specific embryo culture media for specific applications

Watch this movie where Dr. Silversand describes the development of G-TL as well as present clinical results from a multicentre prospective randomised trial.

Time-lapse technology triggers new requirements on embryo culture media

The introduction of time-lapse technology has reduced the need of handling the embryo outside the incubator. Time-lapse technology has given a unique possibility to balance metabolic stress against less handling stress during embryo culture. Learn more in this blog post.

Study confirms high performance of G-TL

Watch Dr. Hardarson present results from an international, prospective, controlled and randomised multicentre study evaluating G-TL in a clinical environment using time-lapse technology. 
This lecture was a part of the Vitrolife Scientific Symposium at ESHRE 2014.

SUPPORT DOCUMENTS

Support Documents

Access product information, safety documents, clinical performance information and short protocols.

G-TL™ Package inserts English
01

Package insert G-TL - Multi-language

Document and Ref: REF 26283, version 11

Disclaimer: MDR version
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Gx-TL™ Package inserts English
02

Package insert Gx-TL - Multi-language

Document and Ref: REF 26902, version 07

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G-TL™ Safety data sheets (SDS) English
03

SDS G-TL

Document and Ref: Document and Ref: Date Revised : 04/16/2025.Revision No : 4. Safety data sheet for G-TL

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Gx-TL™ Safety data sheets (SDS) English
04

SDS Gx-TL

Document and Ref: Document and Ref: Date Revised : 04/16/2025.Revision No : 3. Safety data sheet for Gx-TL

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G-TL SSCP English
05

SSCP G-TL

Document and Ref: REP-3361. Version 5.0. 2025/03/10

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Gx-TL SSCP English
06

SSCP Gx-TL

Document and Ref: REP-2364. Version 5.0. 2025/03/10

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G-TL™ Scientific summaries English
07

G-TL supports blastocyst development in large volume

Document and Ref: In a study presented at the ACE meeting in the UK, Shaw and co-workers compared single step time-lapse medium (Vitrolife, G-TL) with sequential series media (Sage, Quinn’s advantage) in large volume culture as well as micro drop culture. They found significantly higher day 5 blastocyst development rate in the G-TL group in both large and small volume culture.

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G-Series™ Short protocols English
08

G-Series™ G-TL Embryo Culture

Document and Ref: REF 19125 version 1. Date of issure 2019-08-12. This short protocol describes how to perform embryo culture using G-TL™, OVOIL™ and G-MOPS™ PLUS.

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Gx-Series™ Short protocols English
09

Gx-Series™ Gx-TL Embryo Culture

Document and Ref: REF 19181. Version 1. Date of issue 220923. This short protocol describes how to perform embryo culture using Gx-TL™, OVOIL™ and Gx-MOPS™ PLUS.

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G-Series™ Short protocols English
10

G-Series™ Blastocyst trophectoderm biopsy

Document and Ref: REF 19126. Version 02. Date of issue 220923. This short protocol describes how to perform blastocyst trophectoderm biopsy using OVOIL™ and G-Series™ media, G-2™ PLUS or G-TL™ and G-MOPS™ PLUS

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Gx-Series™ Short protocols English
11

Gx-Series™ Blastocyst trophectoderm biopsy

Document and Ref: REF 19180. Version 1. Date of issue 220923. his short protocol describes how to perform Blastocyst trophectoderm biopsy with OVOIL™, Gx-MOPS™ PLUS and Gx-TL™

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G-Series™ Short protocols English
12

G-Series™ ICSI procedure

Document and Ref: REF 19122. Version 02. Date of issue 220923. This short protocol describes how to perform ICSI using ICSI™, HYASE™-10x, OVOIL™ and G-Series medium G-MOPS™ PLUS .

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Gx-Series™ Short protocols English
13

Gx-Series™ ICSI procedure

Document and Ref: REF 19179. Version 1. Date of issue 220923 This short protocol describes how to perform ICSI using ICSI™, HYASE™-10x, OVOIL™ and Gx-Series medium Gx-MOPS™ PLUS and Gx-TL™

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