Impact Week vs Payday Sale: which MyProtein event drops the best prices on whey and creatine
MyProtein runs two headline sale events each year — Impact Week (typically June) and the Payday Sale (end-of-month flash). Impact Week is the deeper discount: up to 70% off across protein, vitamins, gym wear and accessories, with stackable codes like EXTRA for an additional 10% off £40+ or 15% off £70+. The Payday Sale maxes out at around 50–60% off but often includes free standard delivery on a lower £25 threshold instead of the usual £50. If you buy Impact Whey Protein in bulk (2.5 kg bags), Impact Week's 70% + 15% stack is the lowest per-serving price you will see all year — roughly 36p per 25 g serving compared with the everyday price of around £1.20. Verified, 8 codes and 22 offers currently live.
The flagship. From ~£8 for 250 g sample pouches to 2.5 kg bulk bags. Stack EXTRA with sale for the best per-serving cost.
90% protein, lower carb. 1 kg starts around £33 on sale — pair with a 15% code for under £29/kg.
Juice-style protein drink, 20 g per serving. Popular summer seller — discount codes often apply to multi-tub bundles.
Creatine Monohydrate from under £4 for 250 g. Pre-workout blends (The Pre-Workout) often 50% off in Impact Week.
Omega-3, Vitamin D3, Multivitamin — extra 20% off codes appear during seasonal promos on top of sale prices.
MP-branded leggings, shorts, gym bags and shakers. Clearance rack routinely hits 60–70% off.
How the EXTRA and MORE codes stack on top of MyProtein sale prices
- Add items to your basket — sale prices (up to 70% off) apply automatically with no code needed.
- Enter code EXTRA at checkout for 10% off when you spend £40+ or 15% off when you spend £70+.
- Alternatively, code MORE may be active for 10% off £35+ or 15% off £65+ — check which threshold fits your basket.
- Open the MyProtein app for an additional 10–15% app-exclusive discount on selected lines. The app code cannot be combined with EXTRA, so compare which saves more.
- Hit the £50 free-delivery threshold and you save another £3.99–£5.99 on standard shipping.
MyProtein's pre-made bundles (Daily Protein Bundle, Muscle Starter Bundle) already sit at 30–40% off individual prices. During Impact Week these bundles drop a further 50% and then the EXTRA code applies on top — making per-serving protein cheaper than any bulk-buy outside the sale.
When free delivery kicks in and how to reach the threshold cheaper
Standard delivery on MyProtein UK orders is free when you spend £50 (sometimes reduced to £25 during Payday Sales). If your basket is just short, adding a £1.49 shaker or a £3.99 Creatine Monohydrate sample sachet is cheaper than paying the £3.99–£5.99 delivery fee. Next-day delivery costs £5.99 and is not waived at any threshold — plan your order in advance for standard free delivery instead.
MyProtein's "Subscribe & Save" gives 10% recurring discount but auto-renews monthly. If you only need a one-off order, uncheck the subscription option before checkout or cancel immediately after receiving your first delivery. The subscription discount does not stack with promo codes during Impact Week, so it is usually better to use a one-time code instead.
| Sale Event | Typical Period | Best Discount | Stackable Code |
|---|---|---|---|
| Impact Week | June (7–10 days) | Up to 70% off | EXTRA (10%/15%) |
| Payday Sale | Last week of month | Up to 50–60% off | MORE or EXTRA |
| Black Friday | Late November | Up to 80% off selected lines | Varies |
| New Year Sale | January | Up to 60% off | Welcome code 15% |
| Summer Sale | July–August | Up to 50% off + 20% vitamins | Seasonal code |
| Müller x MyProtein collab | Seasonal drops | Bundles from £20 | None needed |
Why MyProtein referral credits beat most voucher codes for small orders
The MyProtein referral scheme gives both you and your friend £15 credit on their first order over £45. If your basket is under £70 (below the 15% EXTRA threshold), that flat £15 is worth more than a 10% code (£15 > 10% of £50 = £5). Stack the referral credit with free delivery over £50 and you save roughly £20 on a single order — no code needed. Referral credits appear in your account within 24 hours of your friend's first purchase.
Can I use two MyProtein voucher codes at the same time?
No — MyProtein allows only one promo code per order. However, sale prices (the up to 70% off markdown) apply automatically before the code, so you still get both the sale discount and the code discount. Choose whichever code gives the higher percentage on your basket size.
Is the MyProtein app discount better than the EXTRA code?
It depends on your basket. The app gives an extra 10–15% on selected items, while EXTRA applies site-wide on qualifying spend thresholds. If your items are app-eligible and your basket is under £40, the app code wins. For larger orders over £70, the site-wide 15% via EXTRA is usually better.
How much is Impact Whey Protein during Impact Week?
Impact Week typically slashes the 2.5 kg bag of Impact Whey Protein to around £18–22 (down from ~£55 RRP). With the EXTRA 15% code on a £70+ basket that includes it, per-serving cost drops to approximately 36p — the cheapest per gram of protein MyProtein offers all year.
Does MyProtein offer student or key-worker discounts?
MyProtein occasionally runs student discounts via UNiDAYS and Student Beans (typically 15–20% off). There is no permanent NHS or key-worker discount, but Payday Sale and Impact Week pricing usually beats any student code on its own. Always compare the sale price + EXTRA against the student percentage.