Skylarlife Grout Silicone Caulk Whitener, Black Stain Problem Solver, Best for Home Sink, Kitchen, Showers, Bathroom and Floor Tile (1-Pack)
Brand: SKYLAR LIFE

How to use
1. Use enough ventilation and wearing rubber gloves
2. Ensure the silicone area is dry as water will dilute the solution and it may affect the effectiveness of the gel
3. Apply a 3mm thick gel to the area with the convenient nozzle.
4. Leave on the surface for at least 5-6 hours
5. Wash off with running water and see the result.
6. If it is not completely cleaned,you may need to repeat step 2-5 again.

Simple to apply, wait 6-8 hours on area and no scrubbing required
Its fast acting, powerful concentrated gel formula clings to tiles, silicone sealant (around windows, sinks and baths), shower-heads, Pool and more
it is gel type so does not flow down in vertical and inclined surface, easy to use and clean up more effectively by acting for a longer time
Perfect for tiles ,Silicone Caulk, Sink, Kitchen, Showers, Bathroom
Give it a try before striping the caulk off and redo it.