How do I use Bathroom & Shower Cleaner?Updated 11 days ago
TL;DR: Spray Bathroom & Shower Cleaner onto the surface, spread the foam with a damp cloth or mitt, let it sit a few minutes to break down grime, scrub stubborn soap scum with the Ultra Pro Bathroom Mitt, then rinse with water. More dwell time means less scrubbing.
How do I use Bathroom & Shower Cleaner?
✓ Five-step method
Spray the foam. Spray Bathroom & Shower Cleaner directly onto the surface. Cover the full area.
Spread it evenly. Use a slightly dampened cloth, sponge or the soft side of the Ultra Pro Bathroom Mitt so every part of the surface has contact.
Let it sit. A few minutes for light maintenance, up to 10 minutes for heavier soap scum or build-up. The enzymes and surfactants need time to work.
Scrub tough grime. For hardened soap scum, limescale or textured surfaces, scrub with the striped side of the Ultra Pro Bathroom Mitt.
Rinse clean. Rinse with water for a streak-free finish on screens, tiles and tapware.
How long should I let it sit?
✓ Dwell time by soiling level
Weekly maintenance: 2 to 3 minutes. Moderate soap scum: 5 minutes. Heavy build-up or limescale: up to 10 minutes. Don't let the foam dry out fully. Re-spray if it starts to.
What bathroom surfaces can I use it on?
✓ Works across the bathroom
At pH 8 it is close to neutral, so it suits most bathroom surfaces. It is especially effective on tiles and glass, and works on bathtubs, basins, taps, shower trays, fibreglass, acrylic, stainless steel, chrome and glazed ceramic.
⚠ Spot test unique or delicate materials
For unique or delicate materials, always spot test in an inconspicuous area first to check compatibility and prevent any potential surface damage. That includes natural stone and any coated or treated finish you are unsure about.
How often should I use it?
✓ Weekly is the sweet spot
A weekly clean keeps a bathroom consistently fresh and stops build-up forming. For shower screens, a quick spray and wipe after use prevents soap scum hardening at all. In an average home, one 1.8L pack lasts around six months.

New to Koh?
The Bathroom & Shower Starter Kit pairs the cleaner with the Ultra Pro Bathroom Mitt so you have the full method in one go.
Browse all Bathroom & Shower Cleaner articles
Last reviewed: August 2026 · Koh UK


