White or cloudy marks from deodorant can become especially noticeable on dark clothing.

Proper treatment depends on the fabric and the type of mark.

Treat Before Washing

Follow the instructions of a suitable clothing stain-treatment product.

Avoid aggressive scrubbing that could damage the fabric.

Check the Garment Label

Some dark garments require specific washing temperatures or cycles.

Inspect Before Drying

Check whether the mark remains after washing before applying heat.

Conclusion

Careful pre-treatment and proper washing can help maintain the appearance of dark clothing.