Skylarlife Mould & Mildew Stain Remover Gel Review
Format: Gel in a squeeze tube with nozzle
Active ingredient: Sodium hypochlorite (bleach) in a thickened gel
Price: ~£13.99 single tube; 2 and 3 packs available
Dwell time: Several hours to overnight
Best on: Silicone sealant, grout lines, sink joints
Skylarlife is the default answer when someone asks how to get black stains out of bathroom silicone, and for once the default answer is the right one. It has been on Amazon UK longer than nearly every rival gel, it has the deepest pool of owner feedback, and Ideal Home's tester came away impressed after running it on stained grout.
What it is, honestly
Sodium hypochlorite, the same active ingredient as household bleach and every £2 mould spray, suspended in a gel thick enough to hold onto a vertical surface for hours. That's the whole trick, and it's the trick that matters. Mould staining in silicone isn't sitting on the surface where a 30 second wipe can reach it. The pigment has penetrated the sealant. Nothing removes it without prolonged contact, and nothing gets prolonged contact on a vertical bead except a gel.
So yes, you're paying around £14 for formatted bleach. You're also paying for the only format that does this job. Both things are true.
Using it properly
- Ventilate the room and put on gloves. Read our bleach safety guide first if you haven't.
- Dry the silicone. Gel grips a dry surface far better than a wet one.
- Cut the nozzle and lay a continuous bead along the sealant, like applying caulk.
- Leave it. Minimum a few hours; overnight for heavy staining. Keep the room ventilated and children and pets out.
- Wipe off with a damp cloth, then rinse the area well.
One pass clears most staining. Genuinely old, established stains sometimes need a second application, and that's normal, not a product failure.
What it won't fix
If mould has colonised all the way through the silicone bead, no gel will rescue it. You'll get a big improvement, then a grey shadow that never fully goes. At that point the honest fix is £10 of new sealant and an hour with a caulk gun, then Skylarlife as maintenance on the fresh bead. It also won't stop mould returning if the room stays humid; that's a ventilation problem, and we cover it in the prevention guide.
Pros
- The longest track record in the UK gel category
- Nozzle tube gives precise application on sealant joints
- Clings overnight without sagging
- Multipacks drop the per-tube price
Cons
- Most expensive gel per tube here
- Strong chlorine smell during dwell
- Can't resurrect fully colonised sealant
Verdict
Buy it for stained bathroom silicone and grout. It's the proven product in a category full of interchangeable imports, and the nozzle format makes an unpleasant job tidy. Pair it with a £2 bottle of Astonish for upkeep so you don't need another tube in three months.