By Roy Newlan, founder Last updated 18/08/2026
Of the seven actives in a Settl scoop, inositol is the one that raises the most eyebrows. It sounds like a lab chemical and reads like a typo. It's neither. This page covers what it is, why it turns up in evening routines, and why we put 900mg of it in every scoop.
Why put inositol in a sleep formula?
Inositol is in Settl because it steadies the night, the quiet stretch after you've already fallen asleep. Most sleep ingredients work on getting you down. Inositol earns its place in the hours that follow.
The rest of the formula divides the evening up the same way. L-theanine settles the head while you're still awake. Glycine smooths the wind-down as you head off. Magnesium helps the body unwind. Inositol's job starts where theirs finishes, through the middle of the night, which is exactly where a lot of people's sleep actually falls apart. If you fall asleep fine and still surface at 3am, this is the active in the scoop with your name on it.
What is inositol?
Inositol is a carbohydrate-like compound your own body makes every day. It also arrives in food, with fruit among the better sources, which is a tidy coincidence for a passionfruit-flavoured drink.
Chemically it's a small sugar-like molecule, though it isn't used as a sugar and doesn't taste like one in the scoop. It sits in every cell membrane you own and helps cells pass signals along. It was once labelled vitamin B8 before scientists worked out the body makes its own, so it lost the vitamin title but kept the reputation. Nothing exotic, nothing synthetic-sounding once you know what it is. Your body has been making it since before you could pronounce it.
Why take it in the evening?
Because the evening is when the compound's calming reputation is put to work. Inositol turned up in wind-down routines long before Settl existed, taken at night as part of a broader stack rather than on its own.
That's where we found it. Settl is Roy's own nightly routine packaged into one scoop, and inositol was already in that routine, measured out separately every night alongside the glycine and the magnesium. It made the cut for the same reason everything else did: it was already being used, every night, by the person who built the formula.
How much inositol is in Settl?
Every 9g scoop carries 900mg of inositol. Research on inositol has commonly looked at gram-scale amounts taken daily, so 900mg is a deliberate, meaningful dose rather than label decoration.
| Active in each 9g scoop | Delivers per serve |
|---|---|
| Glycine | 3,000mg |
| Sodium | ~999mg sodium (from sodium chloride) |
| Inositol | 900mg |
| L-theanine | 200mg |
| Potassium | ~200mg potassium (from potassium citrate) |
| Magnesium glycinate | 146mg elemental magnesium (from 730mg of the compound) |
| Chamomile flower extract 45:1 | 50mg, about 2.25g dried flower equivalent |
At 900mg it's the third biggest active in the scoop by weight, behind only glycine and the sodium base. That's the pattern across the whole formula: glycine is dosed at 3,000mg for the same reason. If an ingredient can't be included at a level worth having, it doesn't go in at all. The full panel is on the ingredients page.
Does inositol make you drowsy?
No. Inositol isn't a sedative and doesn't knock you out. Nothing in Settl does, which is the point of the formula.
There's no melatonin in the scoop, on purpose, and inositol fits that philosophy exactly. It's a compound your body already makes, taken at a considered dose, working with the night rather than forcing one. Gentle actives that let the day end. No shutdown, no morning fog, no ingredient you'd hesitate to take every single night.
Where inositol fits in the scoop
One scoop, cold water, before bed. Glycine and magnesium for the wind-down, L-theanine and chamomile for the head, sodium and potassium to hold hydration, and 900mg of inositol to steady the night in between.
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Cheers, Roy