Voucher Magpie
Tammy15%multi-buy
Save over 15% on 12 bottles of Magnesium Breakthrough
12 x 60-capsule bottles for £304.99; smaller multi-packs save over 5% or 10%.
BIOptimizers Discount Codes for October 2026
15%Best offer for everyone
4Deals, no code needed
Current BIOptimizers voucher codes and offers
Freedelivery
12%subscribe
£19.99was £54.99
P3-OM probiotic 120 capsules now £19.99 (was £54.99)
1 bottle of 120 capsules. Sale price shown on the product page; while it lasts.
Today's BIOptimizers deals
Updated 5 October 2026| Offer | Saving | Ends |
|---|---|---|
| Save over 15% on 12 bottles of Magnesium Breakthrough Deal | 15% | Ongoing |
| Free UK delivery on orders over £20 Deal | Free | Ongoing |
| Subscribe and save 12% Deal | 12% | Ongoing |
| P3-OM probiotic 120 capsules now £19.99 (was £54.99) Deal | £19.99 | Ongoing |
About BIOptimizers
BIOptimizers is a supplement brand started by trainers Wade Lightheart and Matt Gallant, who went into business together in 2004 selling fitness programmes, enzymes and plant protein. The UK site, run by Vipertech Ltd, sells the range in pounds and ships from within the UK.
The range is mostly capsules sold by the bottle, with bigger savings for multi-bottle packs. Magnesium Breakthrough costs £19.99 for 30 capsules or £29.99 for 60, and packs of three, six or twelve bottles cost less per bottle. MassZymes enzyme capsules start at £29.99 for 120, and P3-OM probiotic capsules start at £29.99 for 60. There are also protein, collagen and prebiotic products and bundled stacks. Most products can be bought once or on subscription, which takes 12% off.
UK delivery is by Royal Mail, costs £2.99 and is free on orders over £20. Orders placed before 11am on a weekday usually go out the same day. The site offers a 365-day money-back guarantee on unopened bottles, and Klarna is available at checkout. Speak to your GP or pharmacist if you have any concerns about your health.
BIOptimizers delivery and returns
| Delivery | UK delivery by Royal Mail for £2.99, free on orders over £20; usually 1-3 working days in transit. |
|---|---|
| Returns | Unopened products can be returned for a refund; the site states a 365-day money-back guarantee on unopened bottles, minus shipping costs. |
BIOptimizers at a glance
| Ways to pay | Card payments, with Klarna offered at checkout. |
|---|
From BIOptimizers's own website. Terms change, so check at checkout.
How to use a BIOptimizers voucher code
- Tap Get code on the offer you want. We copy the code for you and open BIOptimizers in a new tab.
- Check the offer's Terms first: some codes need a minimum spend, are for new customers only, or exclude sale items.
- Add what you want to your basket on bioptimizers.co.uk.
- Go to the checkout and choose your delivery option.
- Paste the code into the discount code or promo code box and apply it. Check the discount shows in your order total before you pay.
- Didn't work? Tap Didn't work? under the code so we can recheck it, and read why codes fail.
Ways to save at BIOptimizers
- Choose subscribe and save on product pages to take 12% off repeat orders.
- Multi-bottle packs cost less per bottle: three, six or twelve bottles of Magnesium Breakthrough save over 5%, 10% or 15%.
- Check the sale price on P3-OM: the 120-capsule bottle is currently £19.99 instead of £54.99.
- Spend at least £20 to get free UK delivery.
BIOptimizers customer service & reviews
Contact BIOptimizers
What shoppers say
Frequently asked questions
What's the best BIOptimizers code today?
There's no BIOptimizers discount code to copy right now. The best offer is save over 15% on 12 bottles of Magnesium Breakthrough (best offer for everyone), no code needed.
Does BIOptimizers do student discount?
We don't know of a student discount at BIOptimizers at the moment.
Does BIOptimizers offer a Blue Light or Armed Forces discount?
We don't know of a Blue Light or Armed Forces discount at BIOptimizers at the moment.
Does BIOptimizers offer free delivery?
UK delivery by Royal Mail for £2.99, free on orders over £20; usually 1-3 working days in transit.
What is BIOptimizers's returns policy?
Unopened products can be returned for a refund; the site states a 365-day money-back guarantee on unopened bottles, minus shipping costs.
How do I contact BIOptimizers customer service?
Use the help centre on the BIOptimizers website.
Can I use more than one BIOptimizers discount code?
Usually not: most stores, including BIOptimizers, accept one discount code per order. Automatic deals and sale prices can often be combined with a code, so check the terms on each offer.
Does BIOptimizers offer a first-order discount?
We don't have a first-order code for BIOptimizers right now. Sign up for alerts and we'll email you if one lands.
Can I use a BIOptimizers discount code on sale items?
It depends on the code. Many discount codes exclude items that are already reduced, so open Terms on the code before you use it.
Why didn't my BIOptimizers code work?
Most codes exclude gift cards and items already reduced, and some need a minimum spend or are for new customers only. Open Terms on the code, or tap "Didn't work?" and we'll recheck it.
How do I use a BIOptimizers discount code?
Tap Get code and we copy it for you. Add your items to the basket on the BIOptimizers website, then paste the code into the discount or promo code box at checkout.
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