Redken Extreme Shampoo
The cheapest verified delivered price for Redken Extreme Shampoo is £21.55 for the 300ml at LOOKFANTASTIC, checked 7 Oct 2026, 17:43. Per ml, the 1000ml is the best value at 4p per ml. Every size and concentration is a separate product, compared only with exact matches.
Prices by size
Delivered totals for a UK delivery, including VAT and known fees.
| Size | Cheapest delivered | Retailer | Per ml | Against Amazon | Compare |
|---|---|---|---|---|---|
| 300ml | £21.55 | LOOKFANTASTIC | 7p per ml | — | Compare prices for Redken Extreme Shampoo 300ml |
| 500ml | Not connected yet | — | — | — | Compare prices for Redken Extreme Shampoo 500ml |
| 1000ml | £39.99 | Amazon | 4p per ml | Amazon is cheapest | Compare prices for Redken Extreme Shampoo 1000ml |