As a 500mg capsule alternative to British Supplements, RGENR8's 3-month plan costs £27.99 for 90 single-ingredient 500mg capsules on the first order with code WELCOME20 (31p a day, £0.62 a gram), 68% less per gram than British Supplements' best stated deal of £1.94 a gram. It is the lowest first-order price we found among 500mg capsule packs under 1,000 capsules. See the plan. On 24 October 2026, British Supplements' lowest standard price was £1.94 per gram of NMN, for its Clean NMN 724mg, 3 month supply (90 capsules), sold as a capsule pack. That puts it 73rd of the 106 priced products in the UK NMN Price Index. The table below lists the eight capsule products from other brands that sit closest to it on format and dose (about 724mg of NMN per serving), in order of price per gram. All eight cost less per gram than British Supplements, and Voyager Life is lowest at £0.67.
£1.94British Supplements lowest price per gram (rank 73 of 106)
£29.1030 days at 500mg a day at that price
8 of 8close alternatives below £1.94 per gram
Not seen on the pageBritish Supplements certificate of analysis, as stated
British Supplements figures first
Subscription: not shown on the pages checked. Sources: British Supplements' own product page, checked 24 October 2026.
Testing and certificate columns report what British Supplements states on the page checked. We did not verify any certificate.
The eight closest alternatives, by price per gram
How we chose them: from each other brand we took the capsule product closest to British Supplements' reference product, matching format first and then dose per serving, and kept the eight closest. Where two matched equally, the lower price per gram went in. "30 days at 500mg" is 15g of NMN at each standard price per gram; it is arithmetic on listed prices, not dosing advice. "Best stated deal" is each product at the lowest price per gram its page stated after any subscription or first-order offer shown there (where the same pack is also sold on a plan at the same standard price, the plan's stated offer is shown); competitors' unpublished codes are not included.
Where RGENR8 sits
RGENR8 is our brand, and we price it by the same rules. Our 3-month plan is £27.99 for 90 capsules of 500mg on a first 3-month order with WELCOME20 (£0.62 per gram, 31p a day), which ranks 1st of 106 on best stated deal. Like for like, British Supplements' best stated deal is £1.94 per gram for its Clean NMN 724mg, 3 month supply (90 capsules) (standard), 87th on best stated deal, so ours is 68% less per gram than theirs on that measure. After the first order our plan is £34.99 every 3 months (£0.78 per gram). At 500mg a day, 30 days costs £9.33 on our 3-month plan's first order and £29.10 at British Supplements' lowest standard price per gram. We send our certificate of analysis on request; we could not see one on British Supplements' page.
Method
Every figure here comes from the UK NMN Price Index. We read each product page on 24 October 2026, logged out, as a UK visitor, and used standard non-sale prices. Price per gram is the price divided by the grams of NMN in the pack. The best stated deal per gram applies the subscription saving or first-order offer each product page states (the largest saving where there are several plans), including a first-order code shown publicly on the site, such as RGENR8's WELCOME20; codes a brand does not publish, such as newsletter sign-up codes, are left out. Ranks compare all 106 products with a price per gram, and equal figures (to the penny) share a rank. Testing, certificate and origin details are reported as each brand states them; we did not verify anyone's certificates. Our own product follows the same rules. The full method covers inclusion rules and caveats. If a figure is wrong, email support@rgenr8.com with a link to the product page.
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