cholecalciferol - Camellia sinensis L.
  • Active ingredient

Choose a synergistic formula to boost the vitamin D activity that associates validated and pending EFSA claims. This patent pending ingredient combines vitamin D3 and green tea extract for a complete action on immune health.


improvD3 vitamin D green tea
patent pending
Vitamin D activity booster formula
Vitamin D3
Green tea extract
Camellia sinensis L.

Vitamin D3 and Green Tea extract are both scientifically proven to boost immunity. Together, they have a synergistic action. In fact, ImprovD3 provides flavanols  that up-regulate the conversion of dietary vitamin D3 into its active form.

Scientifically proven efficicency

Mechanisms of action of AiFlexinside™
Synergistic action

ImprovD3™ upregulates the conversion of dietary vitamin D3 into its active form

+17% of calcitriol production

Proprietary results

Vitamin D3 supports the immune system

Vitamin D plays a role in both innate and adaptative immunity

Vitamin D immunity
Green tea extract boosts the immunological response

Polyphenols from green tea significantly enhance leukocytes function and antioxidant capacity

flavanols green tee immunity
flavanols green tee immunity

Claims Doses & Galenic

How to use ImprovD3™ in your food supplement ?
Well Being nutrition
immunity nutraceutical ingredients

Validated EFSA claims : "High in Vitamin D"

"Vitamin D contributes to the normal function of the immune system"

EFSA pending claims : "Green tea supports the immune system

"Green tea improves body’s defences against unfavourable external environmental factors "

"Green tea strengthens the immunity"

Example of other benefits claims :
"Green tea extract can help to strengthen the bones "

Vitamin D contributes to normal blood calcium levels

"Vitamin D contributes to the maintenance of normal muscle function"


Dose &
galenic form

187 mg/day

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