Gst on vitamin supplements

Hi Experts,

What is GST on vitmain supplement products. I am confused, as per GST Hs code:

2936 Provitamins and vitamins, natural or reproduced by synthesis .   - 18% GST

Food preparations not elsewhere specified or included i.e. Protein concentrates and textured protein substances, Sugarsyrups containing added flavouring or colouring matter, not elsewhere specified or included; lactose syrup; glucose syrup and malto dextrine syrup, Compound preparations for making non-alcoholic beverages, Food flavouring material, Churna for pan, Custard powder [2106].  - 28% GST

So I am confused whether the GST for Vitamin helath supplemtn is 28% or 18%

Please help

Thanks