Get the sharpest, brightest images. Try new Invitrogen™ ProLong™ Glass antifade mountant with glass-matching refractive index of 1.52. Learn more

ProLong™ Antifade Kit This product, and/or its packaging, incorporates one or more environmental/green features. Click on this icon to learn more.

Catalog number:  P7481

 Related applications:

Cellular Imaging

Error loading your content!

  Catalog number
Select a plan
Unit size
Price ({{currency}}) Availability Qty
{{product.sku}} {{product.sku}} also known as {{product.formattedSku}} 
Pro add-ons

Your on-site stock

›› {{supplyCenter.scName}}({{scProduct.stockOnHand}} In stock)
›› {{supplyCenter.scName}}(Out of stock)
›› {{supplyCenter.scName}}
This item is not currently available on-site. Depending on your Supply Center settings you may be able to add the item to cart above else use the Order Non-Stocked Items' tab on the Supply Center home page.
Back to top


The ProLong® Antifade Kit provides a powdered antifade reagent and a liquid mounting medium that can be mixed together and applied directly to fluorescently labeled cell or tissue samples on microscope slides to protect the dyes from fading (photobleaching) during fluorescence microscopy experiments. ProLong® antifade medium is a curing mountant that allows longer-term storage of the sample. We also offer a ready-to-use Prolong® Diamond reagent that achieves photobleaching protection without the initial fluorescence quenching seen with many other mountants. For immediate viewing of the sample, choose our noncuring mountant, SlowFade® Diamond reagent.

Key Attributes

• Protects dyes from fading during imaging
• Mix powdered antifade with mounting medium and use the same day
• Mounted samples are stable for months
• Offers excellent photobleaching protection for Texas Red® and most Alexa Fluor® dyes
• Liquid mounting medium component can be used without antifade reagent for acceptor photobleaching FRET experiments
For Research Use Only. Not for use in diagnostic procedures.


Reagent Type: Anti-Fade Solution
Product Line: ProLong®
Product Size: 1 kit
Green Features: Less hazardous, Sustainable packaging
Shipping Condition: Room Temperature

Contents & storage

• Powdered ProLong® antifade reagent (Component A), 20 vials
• ProLong® mounting medium (Component B), two dropper bottles containing 15 mL each. One mL of this medium should be mixed with the contents of each vial of ProLong® antifade reagent just prior to mounting the samples.

Store at ≤–20ºC and protect from light.


Manuals & protocols