| 12 Products | Sep 2025 | Sep 2026 | Change |
| Sainsbury's Mayonnaise Light Squeezy (500ml) | £0.95 | £1.00 | + £0.05 5.3% increase |
| | £0.95 | £1.00 | + £0.05 5.3% increase |
| Heinz Seriously Good Light Mayonnaise (570g) | £3.40 | £2.80 | - £0.60 -17.6% decrease |
| | £3.40 | £2.80 | - £0.60 -17.6% decrease |
| Hellmann's Light Squeezy Mayonnaise (750ml) | £3.55 | £3.90 | + £0.35 9.9% increase |
| | £3.55 | £3.90 | + £0.35 9.9% increase |
| Hellmann's Light Mayonnaise (400g) | £2.70 | £2.75 | + £0.05 1.9% increase |
| | £2.70 | £2.75 | + £0.05 1.9% increase |
| Hellmann's Lighter than Light Mayonnaise (400g) | £2.70 | £2.75 | + £0.05 1.9% increase |
| | £2.70 | £2.75 | + £0.05 1.9% increase |
| Hellmann's Light Mayonnaise (800g) | £4.75 | £4.75 | £0.00 No change |
| | £4.75 | £4.75 | £0.00 No change |
| Hellmann's Light Mayonnaise (400g) | £2.00 | £2.00 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
| Hellmann's Squeezy Light Mayonnaise (430ml) | £2.60 | £2.45 | - £0.15 -5.8% decrease |
| | £2.60 | £2.45 | - £0.15 -5.8% decrease |
| Heinz Seriously Good Light Mayonnaise (420g) | £2.50 | £2.50 | £0.00 No change |
| | £2.50 | £2.50 | £0.00 No change |
| Hellmann's Lighter than Light Squeezy Mayonnaise (430ml) | £2.60 | £2.45 | - £0.15 -5.8% decrease |
| | £2.60 | £2.45 | - £0.15 -5.8% decrease |
