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The LURA team
Formulation and scientific documentation
Why you can't fall asleep, and why melatonin isn't the answer
You're tossing in bed. Your brain is replaying tomorrow's to-do list. The body is tired, but the nervous system is on alert. Sound familiar? The problem isn't a lack of melatonin, it's the cortisol that stays high in the evening.
What's actually keeping you awake
Melatonin tells the brain "it's night now". But if your cortisol is high, and under chronic stress it is, melatonin can't override it. That's why you fall asleep for 20 minutes, then wake up at 3 am.
For women the problem is double: cortisol rises from stress, and progesterone (which helps sleep) drops in the luteal phase. The result, insomnia right before your cycle, every month.
Most sleep supplements mask the symptom. Melatonin is a hormone, long-term use can lower your body's own production. Valerian is weak. "Sleep tea" is placebo in a pretty box.
Three ingredients, three mechanisms, specific doses
Magnesium bisglycinate, 670 mg
The bisglycinate form absorbs without stomach discomfort (unlike magnesium oxide). Activates GABA receptors, the same ones benzodiazepines act on, but without dependence. Relaxes the muscles and prepares the body for deep sleep. Abbasi et al. (2012): 500 mg of magnesium over 8 weeks significantly improved the ISI score (insomnia severity index) vs. placebo.
L-theanine, 200 mg
An amino acid from green tea. At 200 mg it increases alpha waves in the brain for 30–40 minutes (Nobre et al., 2008), the "calm but awake" state that precedes falling asleep. Doesn't cause drowsiness, you can read or talk, but the brain gradually "shuts down" on its own.
Ashwagandha extract, 300 mg (minimum 5% withanolides)
It doesn't act overnight. In a clinical study (Salve et al., Cureus, 2019, 60 participants, predominantly women), 600 mg of ashwagandha daily for 60 days lowered serum cortisol by 27.9%. In Corti-Glow, 300 mg per sachet, for long-term evening use in women. Once cortisol drops, the body naturally returns to a normal circadian rhythm, you fall asleep more easily and wake less often.
Corti-Glow contains 4 more ingredients (L-Glycine 2000 mg, myo-inositol 2000 mg, citicoline 250 mg, vitamin B6 P-5-P), more on the science page.
Comparison: what works and what doesn't
| Corti-Glow | Melatonin | Sleep tea | |
|---|---|---|---|
| Addresses the cause (cortisol) | Yes, 300 mg ashwagandha | No | No |
| Effect from the first evening | Yes, magnesium + L-theanine | Yes | Minimal |
| Safe for long-term use | Yes | Debatable, it's a hormone | Yes |
| Morning grogginess | No | Often | No |
| Clinical studies for the dose | Yes, PubMed | Yes | Rarely |
Frequently asked questions about sleep supplements
Does Corti-Glow contain melatonin?
No. Corti-Glow works without melatonin. Instead of artificially "switching off" the brain, the formula works on the cause of insomnia, stress and high cortisol. Magnesium bisglycinate relaxes the muscles, L-theanine generates alpha waves, and ashwagandha lowers cortisol over time.
How quickly will I notice an effect on sleep?
Magnesium and L-theanine work from the first evening, easier falling asleep and fewer nighttime wake-ups. Ashwagandha requires 4–8 weeks of regular use for a sustained drop in cortisol (Salve et al., Cureus, 2019).
Can I take it if I'm on other sleep medication?
Check with a doctor. Magnesium and L-theanine rarely interact with medication, but ashwagandha can amplify sedatives. Always consult a doctor before combining.
Is it suitable for men?
The formula is designed for women, it contains myo-inositol (2000 mg), which supports cycle regulation in PMS and PCOS. Men can take it, but there are better-fitting options for them.
Will it make me groggy in the morning?
No. Unlike melatonin, which can cause morning "fog", L-theanine (200 mg) produces calm without drowsiness. Magnesium bisglycinate also doesn't build up, in the morning you feel normal.
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