| 40 Products | Sep 2025 | Sep 2026 | Change |
| Tesco Garlic Mayonnaise (235ml) | £0.85 | £0.85 | £0.00 No change |
| | £0.85 | £0.85 | £0.00 No change |
| Hellmann's Real Mayonnaise (800g) | £3.60 | £5.25 | + £1.65 45.8% increase |
| | £3.60 | £5.25 | + £1.65 45.8% increase |
| Hellmann's Real Mayonnaise Jar (400g) | £2.80 | £2.75 | - £0.05 -1.8% decrease |
| | £2.80 | £2.75 | - £0.05 -1.8% decrease |
| Heinz Seriously Good Mayonnaise (215g) | £2.30 | £2.30 | £0.00 No change |
| | £2.30 | £2.30 | £0.00 No change |
| Heinz Seriously Good Light Mayonnaise (570g) | £3.35 | £2.89 | - £0.46 -13.7% decrease |
| | £3.35 | £2.89 | - £0.46 -13.7% decrease |
| Free From Tesco Mayonnaise (250ml) | £1.10 | £1.10 | £0.00 No change |
| | £1.10 | £1.10 | £0.00 No change |
| Hellmann's Light Squeezy Mayonnaise (750ml) | £3.55 | £3.90 | + £0.35 9.9% increase |
| | £3.55 | £3.90 | + £0.35 9.9% increase |
| Winiary Mayonnaise (400ml) | £1.60 | £1.60 | £0.00 No change |
| | £1.60 | £1.60 | £0.00 No change |
| Hellmann's Light Mayonnaise (400g) | £2.80 | £2.75 | - £0.05 -1.8% decrease |
| | £2.80 | £2.75 | - £0.05 -1.8% decrease |
| Hellmann's Light Squeezy Mayonnaise () | £1.00 | £1.00 | £0.00 No change |
| | £1.00 | £1.00 | £0.00 No change |
