Live Amazon price · product details checked 5 September 2026
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We keep BetterYou Vitamin D3 K2 Oral Spray, Fast Acting on our vitamins & supplements shelf alongside 49 others, and rank it on rating, review volume and live price rather than on the brand. The manufacturer puts it this way: Natural peppermint-flavoured spray provides 3000 IU of Vitamin D and an optimal dose of Vitamin K2. This combination supports normal calcium absorption for strong bones and muscles. Each bottle offers a convenient 1-month supply with 3 sprays per day, ensuring you receive the right amount of Vitamin D and K2 daily. That is the maker talking, not us, so read it as a claim rather than a finding. It holds 4.6 out of 5 on Amazon from 6,045 ratings. Where that leaves it next to the rest of the shelf is set out below.
Across the 50 rated vitamins & supplements products we track, the middle of the pack sits at 4.5 out of 5. This one scores 4.6. That sits mid-table. Ratings this close together don't decide anything on their own, so weigh pack size, price per unit and the specifics below instead.
6,045 people rated it, where the shelf median is 7,100. That's enough for the score to mean something without being the last word on it.
On money, this sits in the bottom third of a shelf running from £3.45 to £38.98, with the midpoint around £9.99. Cheap with a middling rating is a fair trade if the specifics suit you, and it is the usual reason to pick something at this end of the shelf.
Worked out from the 50 vitamins & supplements products we track, not from the brand's own claims. How we rank →
Ratings gathered from public product pages at UK retailers. We link to each source so you can check.
Taken from the product listing via Amazon's product API. These are the seller's claims, not our test results.
Short on time? Our best vitamins & supplements shortlist narrows this shelf down to a handful.
