Here are a few Before & After pic I took using the Norwex DeScaler.  I sprayed it liberally on some VERY old tile in a shower and bathtub.  Not the whole area though...this was just a spot test.  The shower had lots of orange colored mold, the soap dispenser was covered in thick limescale and the bathtub had orange mold & limescale around the drain ring really bad.  The camera  shots weren't ideal due to a low battery but you can obviously see a signifiant change.  I sprayed then let it sit for about 45 minutes then wiped off with a Norwex Anti-Bac Enviro Cloth that had been dampened.    Had I re-sprayed and let sit again I am confident that it would have been completely gone.  All this without the use of toxic chemical!  Amazing!  P.S....these pics are taken in a college dorm bathroom ....NOT my own house...

Here is the tile BEFORE I sprayed the DeScaler.  YUCK!

Now AFTER  ( pics below ) I sprayed, let it sit, then wiped with a damp ( water only ) Norwex Anti-Bac Enviro Cloth...I was AMAZED

Now here is the tub area BEFORE and the AFTER....

Now the soap holder (pics below )  was COVERED in thick limescale like nothing I had ever seen before.  I sprayed the dish liberally and again llet it sit for 45 minutes then wiped off with a dampened Norwex Anti-Bac Cloth.  I was shocked how much it removed!  Sadly though the limescale had been there so long it had ate away the finish underneath ( as shown in the after pics) I am confident that had I sprayed once more and left it for 15 minutes that all of the limescale would've been removed.