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Popular from Mars
All productsAt Mars you get a discount by entering a discount code at checkout. Tested on 7 October 2026 by our editors.
One of the most compared brands on Mr Suppy. We collect Mars products from different shops and put them side by side honestly, so you never pay too much.
Prices and codes checked on by the editorial team. We check the codes daily; if a code stops working, we remove it right away.
| # | Product | Price | Price per serving | Last measured |
|---|---|---|---|---|
| 1 | Mars Original HiProtein Bar | £17.99 (-23%) · 57 g | £31.56 / 100 g | |
| 2 | Mars White HiProtein Bar | £17.99 (-23%) · 57 g | £31.56 / 100 g |
Prices checked on 7 October 2026 — discounts are already included in the price per unit.
Mars is the cheapest per kilo in 1 of the 3 categories below; in the others the gap to the cheapest shop is bigger or smaller. Price per kilo, discounts included, same selection as on our price pages.
| Category | Cheapest at Mars | Cheapest in the UK | Difference | Rank Mars |
|---|---|---|---|---|
| Creatine monohydraat | THE Creatine (Creapure®) — £74.69 / kg | Bulk — £35.98 / kg | +108% | #5 of 5 shops |
| Whey-isolaat (±1 kg) | Impact Whey Isolate Powder — £44.09 / kg | Mars | cheapest | #1 of 2 shops |
| Pre-workout | Impact Pre-Workout — £18.75 / kg | Applied Nutrition — £0.57 / kg | +3189% | #2 of 3 shops |
Compared on the cheapest variant per shop; the full lists are on the linked price pages and update automatically.
Copy the code above, go to the Mars webshop and paste the code into the discount code field at checkout. The discount is then applied automatically.
Yes, we check the codes regularly (see the date at the top of the page). Does a code no longer work? Try another one from the list; we replace expired offers as soon as possible.
Regularly, especially around sale periods. Save this page and you will always have the current Mars codes at hand.
Usually not; often only one code works per order. So pick the code with the highest discount for your order.
Combine an active discount code with the sharpest-priced products. We compare the Mars products per shop, so you get the lowest price and the discount.
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