Notes from The Cult
The world of Helio, straight from the people building it.
01Face-shape guide: what suits your face
Shape is the fastest way to cut twenty frames down to a handful. None of it is a rule, and all of it beats scrolling. By Helio® · September 2026 There are twenty frames...
Read the guide →Size and fit: what the millimetres mean
Three numbers sit inside every pair of glasses. Once you know what they do, buying frames online stops being a guess. By...
5 minNot all blue light is the enemy
Some of it sets your body clock. Some of it just tires your eyes. The trick is knowing which is which, and...
5 minSunglasses vs blue light glasses
They can look identical and even share a frame, but they do two different jobs. Here's which you actually need, and when....
6 minSunlight and your body clock: why daylight matters
The single most powerful thing you can do for your body clock isn't blocking light at night - it's seeking it in...