Shop All Transfection Reagents

DMRIE-C Transfection Reagent Invitrogen™

DMRIE-C Transfection Reagent is suitable for transfecting DNA and RNA into eukaryotic cells, and is particularly effective for transfecting suspension cells (e.g., Jurkat) and other lymphoid-derived cell lines. Refer to the Cell Lines database at www.invitrogen.com for a list of cell types successfully transfected. DMRIE-C can also be used for in vivo delivery of DNA. DMRIE-C is a 1:1 (M/M) liposome formulation of the cationic lipid DMRIE (1,2-dimyristyloxy-propyl-3-dimethyl-hydroxy ethyl ammonium bromide) and cholesterol in membrane-filtered water.

Lipofectamine™ LTX Reagent with PLUS™ Reagent Invitrogen™

Lipofectamine® LTX Reagent is a plasmid transfection reagent that offers the right balance of potency and gentleness for your cells, resulting in the highest possible transfection efficiencies and viabilities. Lipofectamine® LTX Reagent is an advanced solution for gene expression in both common and challenging cell types. No other plasmid DNA-specific transfection reagent can match the efficiency, convenience, and gentleness of Lipofectamine® LTX Reagent for transfection of primary, challenging, and sensitive cell lines. Lipofectamine® LTX Reagent is synthesized from 100% animal origin-free components, making it easy to validate the absence of zoonotic diseases, such as BSE or viruses, in research experiments or cell lines.

Lipofectamine® LTX Reagent offers:

• Superior delivery—transfect a broad range of cell types, including primary, challenging, and sensitive cells, with high efficiency
• Superior performance—combine high transfection efficiency with maximal (>90%) cell viability
• Optimized protocols—rapid, simple protocols provided for most cell lines
• A highly effective reagent to generate stable cell lines

Transfect primary cells efficiently
Primary cells are often difficult to transfect. Lipofectamine® LTX Reagent, when combined with PLUS™ Reagent, provides the highest level of transfection in primary cells of any lipid- or polymer-based reagent. Many primary cell types have been successfully transfected with Lipofectamine® LTX Reagent, including primary neural progenitor cells.

Superior delivery into challenging cells
When it comes to achieving high levels of protein expression in RAW267.3 macrophages, Lipofectamine® LTX Reagent outperforms competing transfection reagents (see figure). Achieving high-level transgene expression in cells that are traditionally refractory to transfection allows you to obtain results that were previously unattainable.

Broad compatibility with cell lines
In addition to being excellent for transfecting primary and challenging cells, Lipofectamine® LTX Reagent provides you with the most versatile approach to transfecting established cells lines, including those that are sensitive to other transfection reagents. Use our Transfection Selection Tool to help you select the best transfection conditions for the cells with which you work.

Stable transfection
Lipofectamine® LTX strikes the right balance between potency and gentleness, giving you the highest possible percentage of successfully transfected cells. This makes Lipofectamine® LTX Reagent the quickest and easiest reagent for establishing stable transfectants from challenging or refractory cell types.

Simple, rapid, serum-compatible protocol
Lipofectamine® LTX Reagent offers a streamlined protocol—no need to remove transfection complexes or change/add medium following transfection. A simple optimization protocol helps you get the best results quickly, so you'll spend less hands-on time, and get faster results.

Lipofectamine™ MessengerMAX™ Transfection Reagent Invitrogen™

Lipofectamine® MessengerMAX mRNA Transfection Reagent delivers amazing transfection efficiency in neurons and a broad-spectrum of primary cells, enabling improved application outcomes and more biologically relevant research. That's because our novel lipid nanoparticle technology is optimized to deliver the highest amount of mRNA possible without the nuclear entry step that is required with DNA.

Successfully transfect more predictive cell models with a reagent that provides:
• Amazing transfection efficiency in neurons and primary cell types
• Faster protein expression with no risk of genomic integration
• Up to 10x higher cleavage using mRNA CRISPRs

Enable high transfection efficiency in novel genome editing applications
Lipofectamine® MessengerMAX™ reagent helps increase the likelihood of successful cleavage and recombination with GeneArt® CRISPR Nuclease mRNA through highly efficient transfection, ultimately maximizing the efficiency of genetic modifications and simplifying the downstream processes.

Efficiently transfect difficult-to-transfect cells
Lipofectamine® MessengerMAX™ reagent is designed to transfect a higher amount of mRNA into neurons and a broad spectrum of difficult-to-transfect primary cells. This eliminates the need for electroporation or viruses, and provides a > 2-fold improvement in transfection efficiency compared to other lipid based reagents.

Leverage advantages of mRNA transfection
Transfection of mRNA does not require nuclear uptake, which results in faster protein expression than DNA transfection since translation of mRNA occurs in the cytoplasm. Also, mRNA has no risk of genomic integration and transfection efficiency is cell cycle independent.

CTS™ LV-MAX™ Transfection Kit

The CTS LV-MAX Transfection Kit is an essential component of the CTS LV-MAX lentiviral production system. Based on extensive Design of Experiment (DOE) methodologies, the cationic lipid-based transfection reagent, lentiviral production supplement, and LV enhancer are specifically screened for maximal delivery of multiple DNA plasmids to achieve the highest possible lentiviral titer when used in conjunction with CTS Viral Production Cells cultured in CTS LV-MAX Production Medium.

All CTS LV-MAX Transfection Kit components are produced under cGMP manufacturing conditions with extensive quality-control testing to ensure proper preclinical, clinical, and commercial therapeutic viral vector applications.

CTS LV-MAX Transfection Kit features include:
• Uniquely designed to enhance transient transfection of multiple DNA plasmids into high density suspension HEK293-derived cell culture
• Enables high viral titers of up to 1 x 108 TU/mL (unconcentrated LVV-GFP) to allow for a cost-effective alternative to PEI-based transfection reagents
• Scalable protocol for 96-deep well blocks, flasks, and bioreactors
• Regulatory-compliant reagents produced in conformity with cGMP for medical devices, 21 CFR, Part 820, and certified to the ISO 13485. Drug Master File and Regulatory Support File available upon request.

The CTS LV-MAX Transfection Kit requires CTS Opti-MEM I (not included in this kit) for complexation. The chemically-defined, serum-free, animal origin-free features of the CTS LV-MAX Transfection Kit result in high reproducibility and lot-to-lot reliability. The formulation of this product is identical to the research-grade LV-MAX Transfection Kit, but the CTS LV-MAX Transfection Kit is validated for clinical and commercial therapeutic applications.

Custom configuration and packaging available upon request.

Lipofectamine™ CRISPRMAX™ Cas9 Transfection Reagent Invitrogen™

Lipofectamine CRISPRMAX Cas9 Transfection Reagent is the first optimized lipid nanoparticle transfection reagent for CRISPR-Cas9 protein delivery. It is a high-throughput-friendly, cost-effective alternative to electroporation.

Working together with our TrueCut Cas9 Protein v2 and TrueGuide Synthetic gRNA, it provides:
• Demonstrated cleavage efficiency—tested in over 20 cell types including iPSC, mESC, N2A, CHO, A549, HCT116, HeLa, HEK293, and several others
• Low cell toxicity—less cells needed to initiate your experiment
• High throughput friendly—an ideal delivery solution for 96-well format
• Cost savings—whether cost-per-reaction or initial investment

Achieve high transfection efficiency in novel genome editing applications
Lipofectamine CRISPRMAX transfection reagent increases the likelihood of successful cleavage and recombination, especially when combined with our TrueCut Cas9 Protein v2 and TrueGuide Synthetic gRNA. This ultimately maximizes the efficiency of performing genetic modifications.

Improve experimental outcomes using TrueCut Cas9 Protein v2
Unlike CRISPR plasmid or Cas9 mRNA, using Cas9 protein provides superior cleavage efficiency in primary cells and stem cells. It eliminates the need for transcription or translation of the payload, removes the risk of genomic integration, and is cell cycle independent.

LV-MAX™ Lentiviral Production System Gibco™

The Gibco LV-MAX Lentiviral Production System is the first optimized system that provides a scalable and high-yield lentiviral vector production platform. It is based on a suspension, high-density culture of HEK 293-derived Viral Production Cells adapted to a special chemically defined, serum-free and protein-free LV-MAX Production Medium. Optimal viral titer yield is mediated by our advanced lipid nanoparticle transfection reagent in combination with a novel lentiviral-specific enhancer and supplement. All components work synergistically to generate superior and functional lentiviral particles under serum-free conditions compared to conventional polyethylenimine (PEI).

The LV-MAX Lentiviral Production System provides:
• High titer—greater than 1 x 108 TU/mL (unconcentrated LVVs-GFP)
• Scalable suspension system—from 96 deep-well plate to 2-L bioreactor
• Serum-free—eliminating animal-origin components and associated risks
• Easy, robust culture and transfection protocols—fits into current transient production workflows

The components included in the LV-MAX Lentiviral Production System are: two vials of frozen Viral Production Cells, one liter of LV-MAX Production Medium, and one LV-MAX Transfection Kit sufficient to produce 0.3 L of lentivirus. All components of the LV-MAX Lentiviral Production System are also available for purchase separately. Also required, but not included in this kit, is Gibco Opti-MEM I Reduced Serum Medium (Cat. No. 31985062).

FreeStyle™ MAX Reagent Gibco™

FreeStyle™ MAX Reagent is a proprietary, animal origin–free formulation for transfecting plasmid DNA into eukaryotic cells that can easily be scaled up to produce large amounts of recombinant proteins. FreeStyle™ MAX Reagent allows the highest expression levels and transfection rates with lowest cytotoxicity in bio-production applications, and is specifically formulated for use with:

• FreeStyle™ 293-F Cells (suspension human embryonal kidney cells, Cat. No. R790-07) in serum-free FreeStyle™ 293 Expression Medium (Cat. No. 12338-018)
• FreeStyle™ CHO-S Cells (suspension Chinese Hamster Ovary cells, Cat. No. R800-07) in serum-free FreeStyle™ CHO Expression Medium (Cat. No. 12651-014)
• DG44 Cells (DHFR suspension CHO cells) in CD DG44 Medium with 8 mM L-glutamine and 18 mL/L 10% Pluronic® F-68 (Cat. No. A11000-01)

Product use
FreeStyle™ MAX Reagent is intended for use with the FreeStyle™ MAX 293 Expression System (Cat. No. K9000-10) and the FreeStyle™ MAX CHO Expression System (Cat. No. K9000-20).

Lipofectamine™ 3000 Transfection Reagent Invitrogen™

Lipofectamine® 3000 Transfection Reagent leverages our most advanced lipid nanoparticle technology to provide superior transfection performance with improved application outcomes and reproducible results. This reagent delivers superior transfection efficiency and improved cell viability for the widest range of hard-to-transfect and common cells (e.g., HEK293, HeLa).

Successfully transfect the widest variety of biologically relevant cell types with a reagent that offers:

• Superior performance—our highest efficiency reagent for difficult-to-transfect cells
• Improved cell viability—gentle on your cells, with low toxicity
• Versatile—one reagent for DNA, RNA, and co-transfection

Efficiently Transfect Difficult-to-Transfect Cells
Lipofectamine® 3000 reagent is designed to efficiently transfect difficult-to-transfect cells, yielding superior transfection performance across the broadest array of cell types. Successfully transfected cell types include:

Fibroblast (3T3, COS-7)Myoblast (C2C12, L6 CRL-1458)
Hepatocyte (HepG2, HuH7)Erythroleukemic cell (K562)
Breast carcinoma (MCF7, Hs578T)Prostate carcinoma (LNCap)
Lung carcinoma (A549, NCI-H460)Osteosarcoma (U-2 OS, Saos-2)
Colon carcinoma (Caco2, SW480)Pancreatic carcinoma (PANC-1)
Skin melanoma (SK-MEL-28) 


View performance data for 60+ cell lines plus comparison to Lipofectamine 2000 >

Transfect Common Cells Efficiently and Cost-Effectively
For common cell types, Lipofectamine® 3000 reagent is more cost-effective than other reagents due to its high concentration and low usage amount. The 1.5 mL size provides up to 1500 transfection reactions (in 24-well plates).

Achieve Superior Transfection Efficiency While Maintaining Low Toxicity
Lipofectamine® 3000 reagent maintains a high transfection efficiency within a robust dynamic range of lipid doses for quick and easy optimization. A low toxicity lipid dose (0.75 µL for 24-well plates) is suggested for applications requiring minimal disruption of the cells.

Enable High Transfection Efficiency in Novel Genome Editing Applications
Lipofectamine® 3000 reagent is suitable for novel genome editing applications. It increases the likelihood of successful cleavage and recombination with TALENs or CRISPRs through highly efficient transfection, ultimately maximizing the efficiency of genetic modifications and simplifying the downstream processes.

Lipofectamine™ Stem Transfection Reagent Invitrogen™

Lipofectamine Stem Transfection Reagent is optimized to achieve maximum efficiency with minimal early differentiation in a wide range of stem cells. It can co-deliver DNA, RNA, and Cas9 ribonucleoprotein (RNP) complexes. Lipofectamine Stem reagent is compatible with a variety of media systems, including feeder-free, helping support and simplify your stem cell culture workflow. Researchers can achieve up to 80% or better transfection efficiency in pluripotent stem cells (PSCs) and neural stem cells (NSCs), and up to 45% in mesenchymal stem cells (MSCs).

Transfecting stem cells without inhibiting cell viability and cell growth can be challenging due to the sensitivity of these cells. Lipofectamine Stem is a low toxicity reagent, requiring low amounts of nucleic acid, allowing your stem cells to stay healthy and continue proliferating without inducing differentiation. Lipofectamine Stem reagent is:

Superior in performance—up to 3-fold higher efficiency across iPSCs, hESCs, NSCs, and MSCs compared to other reagents
Versatile—one reagent for DNA, RNA, Cas9 protein, and co-transfection
Gentle on cells—maintains cell proliferation without inducing differentiation
Flexible—transfects cells in adherence or suspension—an alternative to electroporation

Achieve high efficiency gene editing in stem cells
Gene editing applications typically require the ability to co-deliver DNA, RNA, and/or protein into cells. Lipofectamine Stem Transfection Reagent is designed to co-deliver CRISPR/Cas9 complexes into human stem cells for high efficiency gene editing. This one reagent can be used to transfect large DNA plasmids such as all-in-one CRISPR/Cas9 vectors and co-deliver a range of RNAs, such as large Cas9 mRNA with tracr/crRNA complexes or single guide (sg) RNA, and protein such as Cas9 protein combined with tracr/crRNA or sgRNA.

A low-toxicity alternative to electroporation
Transfecting stem cells via electroporation methods can be challenging and cumbersome. Electroporation protocols recommend single cell suspension culture to ensure maximum efficiency and minimal toxicity. Using the reverse transfection protocol, the Lipofectamine Stem Transfection Reagent proves to be an effective and less toxic alternative to electroporation for stem cells. It requires low amounts of nucleic acid to achieve maximum transfection efficiency, on par with electroporation, while supporting continued proliferation without inducing differentiation.

TurboFect™ Transfection Reagent Thermo Scientific™

Thermo Scientific TurboFect Transfection Reagent is a highly efficient, easy-to-use, non-immunogenic transfection reagent for delivery of DNA plasmids and expression vectors into eukaryotic cells.

Features of TurboFect Transfection Reagent:

• High transfection efficiency of a wide variety of cell types
• No optimization required for most cell lines
• Excellent transfection efficiency in the presence or absence of serum
• Minimal cytotoxicity
• Ready-to-use—no need to reconstitute, dilute or manipulate

Applications of TurboFect Transfection Reagent :
• Stable and transient transfection or co-transfection of DNA or RNA
• Experiments with adherent or suspension cells, differentiated or undifferentiated cells
• Gene expression studies and assays involving GFP or luciferase reporters

TurboFect Transfection Reagent is a sterile solution of a proprietary cationic polymer. TurboFect Reagent interacts with DNA to form small, stable, highly diffusible complexes which are readily endocytosed. The reagent creates a proton-sponge effect that buffers endosomal pH by provoking massive proton accumulation and passive chloride influx. As a result, rapid osmotic swelling of the endocytosed DNA-complex causes it to rupture in the cytosol, allowing translocation of DNA to the nucleus. TurboFect Reagent is ideal for transfection of a variety of cells, including primary and difficult-to-transfect cells.

siPORT™ NeoFX™ Transfection Agent Invitrogen™

This Ambion® lipid-based formulation can be used to efficiently transfect adherent cells with siRNA as they are subcultured—without increased cytotoxicity. It is provided in one tube containing 1 mL.

• Versatile—works with a broad range of cell lines
• Reproducible—produces consistent results, lot-to-lot, plate-to-plate, and well-to-well
• Efficient—performs with high siRNA transfection efficiency, allowing use of low siRNA concentrations to minimize nonspecific effects
• Fast—reverse-transfects cells as they are plated, saving a day

Gene silencing experiments often call for critical, but time-consuming optimization experiments. siPORT™ NeoFX Transfection Agent refines siRNA transfection protocols resulting in less optimization. From start to finish, successful gene silencing experiments can be completed in as early as 24 hours. This streamlined protocol can be adapted to a wide range of cells and experimental designs, including high-throughput applications.

Reverse-Transfect Cells as They are Plated, Saving a Day
Just add siPORT™ NeoFX to your diluted siRNA, incubate to form transfection complexes, add the complexes to the culture wells, and overlay with cells. This new streamlined protocol, named "neofection", will save researchers a full day of valuable time when compared to traditional plated transfection procedures. The transfection complexes are active and stable even in the presence of serum, so there is no need to remove or replace media following transfection.

Optimized for Lower siRNA Concentrations and High Reproducibility
Recent reports indicate that siRNA concentrations of 100 nM or higher can lead to nonspecific changes in gene expression (off-target effects) in mammalian cultured cells. Reducing the amount of siRNA used for transfections to 1–20 nM minimizes these nonspecific effects, while still providing extensive silencing of the target gene. siPORT™ NeoFX Transfection Agent efficiently transfects low concentrations of siRNA. Furthermore, this agent delivers high performance among multiple wells for replicate samples and between different lots of the transfection agent.

Compatible with a Broad Range of Cell Lines
The agent has been used successfully to deliver siRNA into many cell types, including MCF-7 (human breast adenocarcinoma), HT-29 (human colorectal adenocarcinoma), HeLa-S3 (human cervix adenocarcinoma), HeLa (human cervix adenocarcinoma), HepG2 (human hepatocellular carcinoma), BJ (human foreskin fibroblast), A549 (human lung carcinoma), UMR106 (rat osteosarcoma), SKOv3 (human ovarian carcinoma), and SKNAS (human bone marrow neuroblastoma).

Accessory Products:
siPORT™ Amine Transfection Agent (SKU#s AM4502 and AM4503), a polyamine agent, is also available. For testing which transfection agent is best with your system, the Silencer® siRNA Transfection II Kit (SKU# AM1631) is recommended. It contains the two different transfection agents along with controls for transfection optimization.

Calcium Phosphate Transfection Kit Invitrogen™

The Calcium Phosphate Transfection Kit provides high-quality reagents to enable the introduction of DNA into eukaryotic cells via calcium phosphate co-precipitation.

How it works
The calcium phosphate transfection method for introducing DNA into mammalian cells is based on forming a calcium phosphate-DNA precipitate. Calcium phosphate facilitates the binding of the DNA to the cell surface. DNA then enters the cell by endocytosis. The method was first developed by Graham and van der Ebb and was later modified by Wigler. The procedure is routinely used to transfect a wide variety of cell types for transient expression or for producing stable transformants. The DNA is mixed directly with a concentrated solution of CaCl2, which is then added dropwise to a phosphate buffer to form a fine precipitate. Aeration of the phosphate buffer while adding the DNA-CaCl2 solution helps to ensure that the precipitate that forms is as fine as possible, which is important because clumped DNA will not adhere to or enter the cell as efficiently.

ExpiFectamine™ Sf Transfection Reagent Gibco™

ExpiFectamine Sf Transfection Reagent is a next-generation cationic lipid-based reagent for efficient DNA transfection of insect cells using fast, flexible protocols.

ExpiFectamine Sf Transfection Reagent:
• Delivers robust and reproducible transfection, giving you greater confidence in your results
• Enables transfection of plasmid DNA in adherent and suspension Sf9 and Sf21 cell cultures for reliable recombinant baculovirus production
• Facilitates efficient production of high-titer, high-quality P0 recombinant baculovirus in suspension culture format without the need for further virus amplification
• Exhibits low toxicity and does not require medium change post-transfection
• Is part of a simple, fast protocol with a short 5-minute complexation time
• Demonstrates linear scalability of transfections from culture volumes of 4 mL to 500 mL in suspension format

The ExpiFectamine Sf Transfection Reagent is a core component of the ExpiSf Expression System and has been optimized for transfection of ExpiSf9 Cells. However, the reagent also demonstrates superior performance using other Sf9 and Sf21 insect cells cultured in serum-free media such as Sf-900 II SFM or Sf-900 III SFM in both adherent and suspension culture formats.

293fectin™ Transfection Reagent Gibco™

293fectin™ Transfection Reagent is a proprietary, cationic lipid-based formulation for transfecting DNA into eukaryotic cells. This reagent is optimized for transfecting suspension 293 human embryonic kidney cells (e.g., FreeStyle™ 293-F cells, Cat. No. R790-07) in defined, serum-free FreeStyle™ 293 Expression Medium (Cat. No. 12338-018), and is intended for use with the FreeStyle™ 293 Expression System (Cat. No. K9000-01). 293fectin™ Transfection Reagent provides the following advantages:

• Demonstrates high transfection efficiency in suspension 293 cells and is also suitable for transfecting adherent 293 cells
• Suspension FreeStyle™ 293-F cells may be transfected in FreeStyle™ 293 Expression Medium; no medium change is required
• Add 293fectin™ reagent complexes directly to cells in culture medium
• No need to remove complexes or change or add medium following transfection

Invivofectamine™ 3.0 Reagent Invitrogen™

Invivofectamine® 3.0 Reagent is an animal origin-free lipid nanoparticle designed for high efficiency in vivo delivery of siRNA and miRNA to mouse liver cells following tail vein injection.

Using Invivofectamine® 3.0 Reagent
Invivofectamine® 3.0 Reagent is ideally suited for in vivo delivery of siRNA and miRNA duplexes. Invivofectamine® 3.0/RNA complexes are delivered using a low-volume, low-pressure method with no toxicity and no stress response in the animal. Invivofectamine® 3.0 can also be combined with BLOCK-iT™ fluorescent controls to track the biodistribution of the siRNA or miRNA.
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