The LURA team
Scientific documentation
COMPARISON
Corti-Glow vs magnesium tablets
Magnesium is one of the 7 ingredients in Corti-Glow. So why pay for the whole formula when you can just buy magnesium? This page explains the difference — honestly, with numbers.
TL;DR
Magnesium is cheap, effective, and has well-studied effects on sleep and muscles. If your only problem is cramps or a mild deficiency — magnesium for 5-8 € is an excellent choice. Corti-Glow is for women with a more complex picture: stress + insomnia + PMS + sugar cravings. The formula combines magnesium bisglycinate with ashwagandha, myo-inositol, L-theanine and 3 more ingredients — something magnesium alone can't do.
Not all magnesium is equal
Pharmacies carry dozens of magnesium supplements. Most contain oxide — the cheapest form with ~4% absorption. Here's what the different forms mean:
Magnesium oxide
The most common in pharmacies. Barely absorbed.
Magnesium citrate
Good value for money, but may cause loose stools.
Magnesium bisglycinate (in Corti-Glow)
Chelated form — magnesium bound to glycine. Doesn't irritate the stomach.
Magnesium L-threonate
Promising form for the brain, but more expensive and with less clinical data.
What magnesium does — and what it can't
Magnesium is a mineral that ~50% of Bulgarians don't get enough of (European Food Safety Authority, 2015). It participates in over 300 enzymatic reactions, including:
What magnesium's authorized claims cover
- Contributes to normal nervous system function (authorized EU claim)
- Contributes to normal muscle function (authorized EU claim)
- Contributes to reducing tiredness and fatigue (authorized EU claim)
- Contributes to normal psychological function (authorized EU claim)
What magnesium alone doesn't cover
- Doesn't touch the cortisol axis (the stress hormone)
- Doesn't cover the evening blood-sugar dip
- Doesn't produce alpha brain waves
- Is one mineral — not the whole 7-ingredient formula
Corti-Glow includes 670 mg of magnesium bisglycinate (134 mg elemental Mg, 36.53% RDI). But magnesium is just 1 of 7 ingredients — the formula also carries ashwagandha (300 mg), myo-inositol (2000 mg) and L-theanine (200 mg), axes magnesium alone doesn't cover.
Comparison table
| Criterion | Corti-Glow | Magnesium (alone) | Advantage |
|---|---|---|---|
| Ingredients | 7 ingredients: L-glycine + myo-inositol + magnesium bisglycinate + ashwagandha + choline bitartrate + L-theanine + vit. B6. | 1 ingredient: magnesium (various forms). | Corti-Glow |
| Form of magnesium | Bisglycinate (bound to glycine) — absorbs far better than oxide, doesn't irritate the stomach. | Depends on the product. Most cheap pharmacy brands = oxide (~4% absorption). | Corti-Glow |
| Elemental Mg dose | 134 mg elemental magnesium (36.53% RDI) from 670 mg bisglycinate. | Usually 200-400 mg elemental Mg (depends on form). | Magnesium |
| Action on stress | Three ingredients, three amounts on the label: ashwagandha root extract 300 mg, L-theanine 200 mg, magnesium bisglycinate 670 mg. | Magnesium contributes to normal nervous system function (authorized EU claim). Cortisol is a separate axis it doesn't cover. | Corti-Glow |
| Hormonal balance (women) | Myo-inositol, 2000 mg per sachet: the largest single amount in the formula, and magnesium does not replace it. | Magnesium contributes to normal muscle function. It is one ingredient; the sachet carries seven. | Corti-Glow |
| Format | Sachet — dissolves in 200–300ml of cold water. Forest fruits flavor. No pills to swallow. | Tablets or capsules (1-3 per day). | Depends |
| Monthly price | 49,99 € / 30 sachets (7 ingredients). | 8-25 € / 30-60 tablets (1 ingredient). | Magnesium |
| Stomach comfort | Bisglycinate is a chelated form that doesn't irritate the stomach. The formula is gentle on the stomach from day one. | Oxide and citrate can cause diarrhea. Bisglycinate — doesn't. | Corti-Glow |
Corti-Glow
7 ingredients: L-glycine + myo-inositol + magnesium bisglycinate + ashwagandha + choline bitartrate + L-theanine + vit. B6.
Magnesium
1 ingredient: magnesium (various forms).
Corti-Glow
Bisglycinate (bound to glycine) — absorbs far better than oxide, doesn't irritate the stomach.
Magnesium
Depends on the product. Most cheap pharmacy brands = oxide (~4% absorption).
Corti-Glow
134 mg elemental magnesium (36.53% RDI) from 670 mg bisglycinate.
Magnesium
Usually 200-400 mg elemental Mg (depends on form).
Corti-Glow
Three ingredients, three amounts on the label: ashwagandha root extract 300 mg, L-theanine 200 mg, magnesium bisglycinate 670 mg.
Magnesium
Magnesium contributes to normal nervous system function (authorized EU claim). Cortisol is a separate axis it doesn't cover.
Corti-Glow
Myo-inositol, 2000 mg per sachet: the largest single amount in the formula, and magnesium does not replace it.
Magnesium
Magnesium contributes to normal muscle function. It is one ingredient; the sachet carries seven.
Corti-Glow
Sachet — dissolves in 200–300ml of cold water. Forest fruits flavor. No pills to swallow.
Magnesium
Tablets or capsules (1-3 per day).
Corti-Glow
49,99 € / 30 sachets (7 ingredients).
Magnesium
8-25 € / 30-60 tablets (1 ingredient).
Corti-Glow
Bisglycinate is a chelated form that doesn't irritate the stomach. The formula is gentle on the stomach from day one.
Magnesium
Oxide and citrate can cause diarrhea. Bisglycinate — doesn't.
When plain magnesium tablets are enough
You don't always need a complex formula. Plain magnesium is enough if:
- You have a magnesium deficiency: Cramps, eyelid twitches, irritability — pure magnesium (bisglycinate or citrate, 300-400 mg elemental) will do the job.
- You don't have a stress problem: If you sleep well most of the time and just want to top up your mineral balance — magnesium is enough.
- Budget is the priority: Magnesium bisglycinate from a good brand: 8-13 €/month. Accessible and effective.
- You prefer to combine things yourself: Some people like to pick ingredients separately. If you already take ashwagandha + L-theanine from another source — you don't need Corti-Glow.
When Corti-Glow is the better choice
Corti-Glow isn't "magnesium with seasoning". The formula is for women with more complex needs:
- Stress + insomnia: If you are comparing labels, magnesium alone is not the whole picture. The formula adds 300 mg of ashwagandha root extract and 200 mg of L-theanine, both printed as their own lines rather than folded into a blend total.
- Before your period: Myo-inositol (2000 mg) is another axis, 2000 mg per sachet: the largest single amount, and magnesium does not replace it.
- Evening sugar cravings: The evening blood-sugar dip is a separate mechanism. The sachet carries myo-inositol (2000 mg) alongside magnesium — plain magnesium doesn't.
- You don't want 5 separate supplements: If you buy ashwagandha + magnesium + L-theanine + myo-inositol + L-glycine separately: ~80-120 €/month. Corti-Glow combines them in 1 sachet for 49,99 €.
- You hate pills: A sachet with forest fruits flavor is more pleasant than swallowing 3 capsules.
Absorption: why form matters
The question is how much of the dose you swallow actually reaches your cells. With magnesium, the difference is dramatic:
Magnesium oxide (the cheapest) has bioavailability of ~4% (Firoz & Graber, 2001, Magnesium Research). From 400 mg of magnesium oxide, your body absorbs only ~16 mg. The remaining 384 mg passes directly through the stomach (which is why oxide has a laxative effect).
Magnesium bisglycinate (in Corti-Glow) is magnesium bound to the amino acid glycine. This bond allows absorption via the amino acid transport pathway, bypassing competition with other minerals. Result: far better absorption than oxide.
Glycine is the smallest of the amino acids: a single molecule with no side chain. That is also why it dissolves so readily. The sachet carries 2000 mg of it.
Questions and answers
Corti-Glow contains magnesium. Can I also take extra magnesium separately?
Why does Corti-Glow use bisglycinate instead of citrate?
If magnesium is so important, why does Corti-Glow contain 134 mg?
Magnesium is 5 times cheaper. Why should I choose Corti-Glow?
The evening can be different.
Magnesium, ashwagandha and collagen are in stock today. Our own Corti-Glow sachet is still in production.
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