
Adrenal Cortex
Glandular support for the system that carries you through demanding, depleting stretches, made to clinical standard.

£20.00
An adaptogen for mental stamina, the one to reach for when fatigue, not anxiety, is the problem.
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Where ashwagandha calms, rhodiola lifts. This Arctic root is the adaptogen for fatigue, the depleted, can't-quite-focus tiredness that follows sustained pressure. It supports mental stamina and a clearer head without the spike and crash of a stimulant. The active rosavins and salidroside do the work, and Thorne standardise the extract to a meaningful concentration, so each capsule is consistent rather than a guess.

Glandular support for the system that carries you through demanding, depleting stretches, made to clinical standard.

Calm, focused attention, and the amino acid that takes the jitter out of caffeine.

The most clinically studied ashwagandha extract, at the full 600mg dose the trials actually use.
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Where ashwagandha calms, rhodiola lifts. This Arctic root is the adaptogen for fatigue, the depleted, can't-quite-focus tiredness that follows sustained pressure. It supports mental stamina and a clearer head without the spike and crash of a stimulant.
The active rosavins and salidroside do the work, and Thorne standardise the extract to a meaningful concentration, so each capsule is consistent rather than a guess.
It is a clean, single-herb formulation from a brand clinicians rely on, with no stimulants and nothing to pad it out, designed for the demanding days rather than every day forever.
Reach for it when energy and focus flag under load. It complements adrenal cortex and L-theanine for steady, resilient cognition.
Where ashwagandha calms, rhodiola lifts. This Arctic root is the adaptogen for fatigue, the depleted, can't-quite-focus tiredness that follows sustained pressure. It supports mental stamina and a clearer head without the spike and crash of a stimulant.
Thorne standardise the extract to a meaningful concentration of the active rosavins and salidroside, so every capsule is consistent. A clean, single herb with no stimulants and nothing to pad it out.
Supports mental stamina and a clearer head under sustained pressure, easing the depleted tiredness that follows a heavy stretch, without a stimulant's crash.

One capsule in the morning on an empty stomach.
Best on demanding or high-fatigue days.
Avoid late in the day, it can be subtly energising.
If you feel wired or restless, take less, or take a break.
The aim is steadiness, not stimulation.
A talk on burnout, recovery and the difference between resting and genuinely restoring a tired system.
See our next stress talk
Overall Sentiment
4 months ago
Been taking this for about six weeks now, mainly because work has been relentless. I'm not sure I can pinpoint exactly when it kicked in, but around week three I noticed I wasn't getting that mid-afternoon brain fog as badly. I'm sensitive to caffeine so this was a good option for me — no jitters, just a kind of steadiness. Would buy again.
4 months ago
Swapped from a blend that had about eight ingredients in it and I couldn't tell what was doing what. This being a single extract means I can actually gauge whether it's working. And it is. Focus during long writing sessions has improved.
5 months ago
I take this in the morning alongside my usual vitamins. After a stressful couple of months with a big project at work, I started this on a recommendation from a colleague. By the end of the first month I felt more even-keeled — less reactive to small frustrations. Hard to attribute it to one thing but I've continued buying.
5 months ago
Effects are decent — I feel less mentally fatigued during heavy training weeks. Only gripe is the capsules are quite large and I sometimes struggle to swallow them first thing in the morning. Not a dealbreaker but worth knowing if you have trouble with big capsules.
5 months ago
Started taking this about three weeks before my professional exams. Wasn't expecting miracles but genuinely felt more composed during revision and on the days themselves. Didn't notice any crashes or weird side effects. Will definitely stock up again before the next round.
5 months ago
No magic, no buzz — just a gradual feeling of being more resilient through a demanding stretch at work. I was sceptical about adaptogens generally but this one has changed my view somewhat.
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