I'm being really annoying here, but it's 5.5 Syns for 250ml, so it would be 16.5 for the bottle.... Ive just checked the app because I didn't know it was so low!!
I know that's annoying but I'd rather know the right syn value so I knew where I was up to lol
plus knowing me I'd get a gain and be annoyed afterwards until I found out the missing 1.5 Syns