Good post on page 3 iirc by The Graduate.
I don't know if proprietary blends are legal in the UK or not
HOWEVER what I do is this:
The exact amounts of the ingredients within the proprietary blend will not be specified however the total combined amout of the proprietary blend will be listed.
An example shown here from USN:
Supplement Facts for USN Xedra Cut XT Serving Size: 4 capsules
M-phR Multi Phase Proprietary Blend 670.2mg
Evodia Rutaecarpa (10% Evodiamine), Carraluma Fimbriata (30% Extract), Capsicum (Cayenne) 200:1, Citrus Aurantium (30% Synephrine), Fucoxanthin (10% Extract), L-Tyrosine, Iodotyrosine, Diiodotyrosine, Banaba (1% Extract)
USN-XT Proprietary Blend 535mg
Natural caffeine, Green Tea Extract (43% EGCG), Yerba Mate (25% Xanthins), Glucuronolactone, Naringin
Bioperine - 95% Piperine Extract 5mg
<message edited by AlterEgo on 24 November 2012 11:50>