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For stress and cortisol

Ashwagandha

Ashwagandha · Plant Withania somnifera (ashwagandha)

Root extract of Withania somnifera, 300 mg per sachet. From the root only, not the leaves.

300 mgin 1 Corti-Glow sachet
Certificate (COA)
Ashwagandha — Ashwagandha root + extract powder

People search for it as

Chronic stressHigh evening cortisolAnxious falling-asleepFatigue despite normal sleepIrritability over small things

In plain language

What it does in your body

Ashwagandha is a herbal root extract, helps the body respond more gently to stress, without blocking it.

The active compounds act on the HPA axis (the system that manages the stress response).

Unlike sedatives, it does not “put the mind to sleep”, it regulates the stress reaction.

Natural source:

Root of the ashwagandha plant, a shrub native to India, North Africa and the Middle East. Used in Ayurvedic medicine for over 3,000 years. The root extract is concentrated — 1 kg of root yields roughly 30 g of extract.

Why ashwagandha is in Corti-Glow

Why this ingredient specifically, not an alternative.

When cortisol (the stress hormone) is high in the evening, you cannot fall asleep, you toss and turn, you think about work.

The extract comes from the root, not the leaves and not the whole plant. The difference matters: the root is the part with traditional use, while the leaves carry a different compound profile.

Ashwagandha root extract (Withania somnifera), used during periods of stress.

How it works on the body

Mechanism, step by step.

1

The HPA axis — the stress system

Hypothalamus → pituitary → adrenal glands is the axis that tells the body “alarm” and raises cortisol. This is exactly the system in focus in the research on ashwagandha.

2

GABA — the calm neurotransmitter

GABA (gamma-aminobutyric acid) is the brain's “brake” in the evening — the feeling of being collected without drowsiness comes from there.

3

Evening cortisol and sleep

The sachet carries 300 mg of extract. The number is printed on the box, not hidden behind a proprietary blend name and not pooled with the other ingredients.

How it works with the other ingredients

7 ingredients. Each pair with a specific mechanism.

Not random supplements in one box. Every combination has a biological reason.

Combination

Ashwagandha + L-Theanine

+ L-Theanine · 200 mg

For calm focus without drowsiness

See L-Theanine

Mechanism

Theanine comes from tea leaves, ashwagandha from a root. In the sachet they sit on separate lines: 200 mg and 300 mg, so you can compare them with whatever else you are looking at.

End benefit

Calm for tonight + less stress reactivity after a month.

3 combinations · click to explore

This is why they aren't sold separately, one sachet, the full chain.

Why this exact dose in Corti-Glow

300 mg, specific, not random.

  • →300 mg per sachet, one sachet a day. A fixed dose, not something you measure with a spoon.
  • →In Corti-Glow: 300 mg in the evening, half of the clinical dose, for long-term intake in women.
  • →An evening dose, aligned with the rhythm of the day and long-term use.
  • →Ashwagandha root extract made from the whole root of the plant.

Frequently asked questions

About ashwagandha.

Our dose is 300 mg, why do clinical trials use 600 mg?+
600 mg per day in the trial is split into 2 × 300 mg. Corti-Glow uses 300 mg in the evening (half of the clinical daily dose), for long-term intake in women with no risk of over-stimulation.
Can it be taken with antidepressants?+
Ashwagandha can enhance the effect of sedatives and SSRI antidepressants (selective serotonin reuptake inhibitors, Zoloft, Lexapro, Cipralex, etc.). If you take antidepressants, you must ask your doctor before starting.
Is there dependence or withdrawal?+
No. Ashwagandha does not cause dependence and has no rebound effect after stopping. You can take breaks (e.g. 8 weeks on, 2 weeks off).
Is it safe during pregnancy?+
No. During pregnancy and breastfeeding, ashwagandha is contraindicated. There is a theoretical risk of uterine stimulation.
Which ashwagandha do you use?+
Root extract, 300 mg per sachet. Root, not leaf: the root is the expensive part and the leaf is the cheap one. If a label says only "ashwagandha" without naming the part of the plant, there is usually a reason.

Works well with

The other ingredients in Corti-Glow.

For calm focus without drowsiness

L-Theanine

200 mg

The green-tea amino acid. 200 mg per sachet — the dose used in clinical studies on calm focus.

See details

For sleep and muscle relaxation

Magnesium Bisglycinate

670 mg

Magnesium contributes to normal nervous system and muscle function. The bisglycinate form is chosen as gentler on the stomach than the oxide.

See details
This information is general and does not replace medical consultation. If you have a diagnosed condition, are pregnant, or are planning pregnancy, consult your doctor before supplements.

The evening can be different.

Magnesium, ashwagandha and collagen are in stock today. Our own Corti-Glow sachet is still in production.

See what is in stock

See the research

Just the ashwagandha?

In Corti-Glow it is one of seven ingredients. If you want it on its own — the shelf carries it separately: 300 mg of root extract, 90 capsules. Another Bulgarian manufacturer makes it, we sell it.