It should be advertised as USP grade (BP for the UK). 99.5% pure and above is the point at which it is considered Pharmaceutical grade, and most places that sell vape VG are 99.7%
It should be advertised as USP grade (BP for the UK). 99.5% pure and above is the point at which it is considered Pharmaceutical grade, and most places that sell vape VG are 99.7%
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