Many people ask us why their salt lamps are turning white and if they should be concerned about it. We will try to explain this phenomenon as best we can, but please make sure you read this entire article before deciding whether or not the lamp is safe to use.
To start, there are a few reasons why your salt lamp could be turning white:
1) It’s a fake lamp
2) Its original color was never white
3) Its original color was white originally, but turned yellow
4) The lamp has been exposed to moisture for an extended period of time
5) The lamp has been exposed to moisture for a short period of time
If your salt lamp is an authentic Himalayan Salt Lamp and it turns from orange/red/pinkish to white, it is safe to use and has not lost any of its healthy properties. However, if you see your lamp start turning yellow (not the powdery yellow look), then you should discontinue using the product as it has probably been exposed to moisture for an extended period of time, which will allow rusting to take place inside the salt crystals.
HOWEVER , if you have been using your lamp for an extended period of time and it has turned yellow (which means rusting has begun inside the salt crystals), please discontinue using the product and discard it before any further damage can take place.
This also applies to lamps that start turning pinkish or orange again after turning white.