84/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://reflexnutrition.com/products/vitamin-d3, checked 25 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Provisional Method B score (vitamin D). 50 µg per serving is under the EFSA UL. The number is not an authorised health claim.
Reflex Nutrition Vitamin D3 is among the best-scoring vitamin d we've tested (84/100), so there's no better-rated swap — but the picks below match or undercut it on price.
Vitamin D research records
TLL Label Scores are shown only for products whose label assessment has been signed off; others are Under review. Labels and listed prices remain available for research.
78/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://betteryou.com/products/vitamin-d4000-oral-spray, checked 25 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Provisional Method B score (vitamin D). 100 µg is at the EFSA adult UL. TLL does not encourage high intake. The number is not an authorised health claim.
BetterYou Vitamin D3 4000 IU Spray
£0.10/serving
68/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://hr-labs.co.uk/products/vitamin-d, checked 25 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Provisional Method B score (vitamin D). 125 µg is above the EFSA UL of 100 µg. The labelled dose is unchanged. TLL does not encourage high intake. The number is not an authorised health claim.
HR Labs VITAMIN D3 5000iu
£0.08/serving
80/100TLL Label ScoreDose & label check
TLL Label Score rates what's on the label, not the results you'll get. It compares stated doses with amounts used in published research and checks how transparent the label is. It isn't a health claim or medical advice. Source: https://appliednutrition.uk/products/vitamin-d3, checked 25 Oct 2026. How we scoreThe TLL Label Score compares the ingredients and amounts declared on the label with the amounts used in published research on those ingredients, and checks how transparent the label is. It rates what's on the label, not the results you'll get. It isn't based on claims made by the brand, doesn't reflect our view of the company, and isn't medical advice. It's for general information only.
Provisional Method B score (vitamin D). 75 µg per serving is under the EFSA UL. The number is not an authorised health claim.
Applied Nutrition Vitamin D3 Capsules
£0.13/serving
Browse the category records: Vitamin D research →
How to choose: Vitamin D buyer's guide →
TLL Label Scores are shown only for products whose label assessment has been signed off; others are Under review. Labels and listed prices remain available for research.