Unibond Grout Reviver Pen, White Grout Pen for Bathroom Grout Joints, Easy to Use Tile Grout Pen, Whitener for Restoring Disc

Overview

We keep Unibond Grout Reviver Pen, White Grout Pen for on our bathroom shelf alongside 45 others, and rank it on rating, review volume and live price rather than on the brand. The manufacturer puts it this way: Thanks to the innovative pen shape, grout whitening is made simple with easy and precise application on existing grout lines to restore joints. The white grout reviver pen is ideal for easily restoring and refreshing old grout in the bathroom that has become faded and discoloured. That is the maker talking, not us, so read it as a claim rather than a finding. Buyers have it at 4.1 out of 5 from 20,830 ratings. We work out below what that is worth against everything else on the shelf.

Shelf price range checked 30 Sept 2026, 06:33 BST · details

How it compares on the bathroom shelf

The typical bathroom product on our shelf scores 4.4 out of 5, measured across 46 rated products. This one comes in at 4.1. That's inside the bottom quarter of the shelf. It isn't a warning, but better-rated options do sit alongside it at similar money, so you would want a specific reason to pick this one.

Behind that score sit 20,830 ratings, against a shelf median of 6,588. With that many opinions behind it the score won't move much, and it is difficult to manipulate. That is exactly why volume carries weight in our ranking.

The shelf runs from £2.99 to £32.99 and the midpoint is about £10.99. On price, this one is in the bottom third. Buying at the cheap end is fine as long as the rating stands up. Here it does not quite, so check what has been cut before assuming the saving is free.

Shelf prices checked 30 Sept 2026, 06:33 BST · details

Worked out from the 46 bathroom products we track, not from the brand's own claims. How we rank →

Key features, as the manufacturer lists them

Taken from the product listing via Amazon's product API. These are the seller's claims, not our test results.

• Easy to apply – Thanks to the innovative pen shape, grout whitening is made simple with easy and precise application on existing grout lines to restore joints.
• Easy restoration – The white grout reviver pen is ideal for easily restoring and refreshing old grout in the bathroom that has become faded and discoloured.
• Mould resistant – The durable grout tile whitening pen refreshes discoloured grout joints and offers triple protection mould resistance to repel, kill and prevent mould.
• Waterproof formula – The grout cleaner pen is ideal for use in the bathroom or kitchen and dries within 60 minutes, meaning showers can be used shortly after application.
• Package Contents – Unibond Grout Reviver Pen, kitchen & bathroom grout cleaner to refresh discoloured/faded grout joints, easy to apply, triple mould protection, covers up to 60m*, Ice White, 1x7ml

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