For how long could the khadi hair dye powder be stored?Updated 4 months ago
The powder can be safely used for up to 6 months after opening if stored in a dark, airtight place at room temperature. Unopened, it can usually be kept for 3 to 5 years after purchase. If you notice that it has become damp or that the powder has changed color in spots, it should no longer be used.
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