White haze on a glass shower door is usually a mix of mineral deposits, soap residue, and body oils. It becomes harder to remove when it dries repeatedly, but aggressive scraping can leave permanent scratches. Soften the deposit first, use a compatible cleaner, and work with a nonabrasive cloth.
Identify the surface
Confirm that the panel is ordinary glass and not a coated surface with special care instructions. Inspect the metal frame, stone ledges, grout, and silicone seals too, because a product that is acceptable on glass may stain or etch nearby materials.
Soften the mineral film
Rinse away grit, then apply a manufacturer-approved limescale cleaner or mild diluted acidic cleaner suitable for the surface. Keep it off natural stone and unprotected metal. Work in a ventilated bathroom, wear gloves, and never mix acidic products with chlorine bleach. Let the product dwell according to its label rather than scrubbing harder.
Wipe and rinse
Use a damp microfiber cloth or soft non-scratch pad in overlapping strokes, rinsing often. A plastic scraper can help with softened residue if the instructions permit it, but keep it flat and stop if the surface feels rough. Do not use steel wool, abrasive sponges, pumice, or a dry razor as a first response. Rinse until no cleaner remains and dry with a fresh squeegee or lint-free towel.
Prevent buildup
If the haze remains but the glass feels smooth, repeat the gentle treatment. Permanently etched glass needs a professional opinion. Run a squeegee after showers and leave the fan operating long enough to reduce moisture. Keep cleaners away from children and pets and follow label directions.