Compared daily across 4 UK supermarkets

Westlab 100% Pure Magnesium Flakes Bath Soak 800g800g · £0.34/100g

All 4 stores

• Tesco£2.75-Visit →
• ASDA£3.00+£0.25Visit →
• Sainsbury's£3.50+£0.75Visit →
• Morrisons£4.10+£1.35Visit →

Across the last 60 days the cheapest price for this product fell to £2.74 on 25 Mar 2026, and the highest reached £4.10. Today's lowest price sits near the bottom of that range.

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