Syntro Women's Magnesium Complex
800 mg of magnesium in 10 forms, plus D3, K2 and methylated B vitamins, built to refill what stress drains — for calmer days, deeper sleep, fewer cramps and steady energy. Just two capsules a day.
- Deeper sleep
- Calmer days
- Fewer cramps
- Steady energy
- Gentle on the stomach
ON EVERY ORDER
ONE-TIME PURCHASE
BACK GUARANTEE
🔥 Selling fast: only 68 bottles left at this price
Take it for three full months. If you don't sleep better and feel calmer, we'll refund your first order. No return required.
Who Is It Designed For?
If you're wired at night and tired by mid-afternoon, if your mind races the moment your head hits the pillow, if cramps wake you up or wipe out a day of your cycle, or if perimenopause has turned your sleep and mood upside down — this was made for you.
Stress burns through your magnesium. Every busy, demanding day uses up a mineral your nerves, muscles and sleep depend on. Most women don't get enough from food to begin with, and stress, caffeine, alcohol and intense exercise all draw it down further.
One cheap single-form tablet rarely covers it, and a cabinet of five separate bottles is a routine nobody keeps. This puts 800 mg of magnesium in 10 forms together with the cofactors it works with — D3, K2, methylated B vitamins, inositol and ashwagandha — in two capsules a day.
Made for women who want calmer days, deeper sleep and steady energy again — without juggling a shelf of supplements.
The 6 Things This Formula Was Built For
Twenty ingredients, six jobs. Each one maps to a real reason you feel drained, tense or wired.
1. Winding down at night. Magnesium contributes to the normal functioning of the nervous system. Most women tell us they fall asleep faster and wake less in the night within the first weeks.
2. A calmer, steadier mood. Magnesium and vitamin B6 contribute to normal psychological function, with a little ashwagandha root in the blend.
3. Muscles that let go. Magnesium contributes to normal muscle function — the reason so many women take it for night leg cramps and period cramps.
4. Steady energy, not a 3 p.m. crash. Magnesium, vitamin B6, B12 and folate contribute to the reduction of tiredness and fatigue.
5. Hormone and cycle support. Vitamin B6 contributes to the regulation of hormonal activity, and myo-inositol is included for cycle support.
6. Bones and everyday health. Magnesium, vitamin D3 and vitamin K2 contribute to the maintenance of normal bones, and vitamin D supports the normal function of the immune system.
How It Works
Magnesium is involved in over 300 processes in your body, from calming your nervous system to relaxing your muscles after they contract. When your stores run low, you feel it everywhere at once.
What's actually happening:
Stress uses up magnesium → your nervous system stays stuck "on" → your mind races and sleep gets lighter → muscles stay tense and cramp more easily → you wake up tired, lean on caffeine and crash by the afternoon.
Why what you've tried hasn't fixed it:
A single-form drugstore tablet gives you one form of magnesium and nothing it works with.
Sugary magnesium gummies need a handful a day and add sugar you don't want before bed.
Five separate bottles of magnesium, D3, K2 and B vitamins cost more and are a routine almost nobody keeps.
How Syntro Magnesium Complex works differently. It puts magnesium and its cofactors in one formula:
✓ 800 mg magnesium complex — 10 forms in one blend, not just one.
✓ Vitamin D3 & K2 — work alongside magnesium for normal bones.
✓ Methylated B vitamins — B6, B12 and folate in their active forms, for energy and the nervous system.
✓ Myo-inositol, ashwagandha, biotin & vitamin C — rounding out the 20-in-1 blend.
Two capsules a day. That's it.
What to Expect — Your First 90 Days
Here's what women typically report. Magnesium stores rebuild gradually, so give it one to two weeks of daily use for the first changes — some notice sooner.
Days 1–14 — the settling-in phase. Evenings start to feel calmer. Many women notice they fall asleep faster and rest more deeply by the end of week two.
Weeks 2–4 — the tension-release phase. Less tightness in the neck and shoulders, fewer night cramps, and afternoons that feel steadier.
Weeks 4–8 — the cycle and mood phase. The week before your period feels less of a rollercoaster, cramps are easier, and everyday stress lands more softly.
Days 60–90 — the new-normal phase. Rested mornings become your baseline. Calm stops being something you chase and becomes how you feel most days.
Stress, caffeine and busy weeks keep drawing on your magnesium. This tops it up every day you take it. That's why most women keep going past the first bottle.
How To Use
Take two capsules a day with food and a glass of water. Many women take them with dinner to help them wind down; any time of day works.
Each bottle holds 60 vegetarian capsules, a 30-day supply. Consistency is what makes the difference: many women notice calmer evenings within 1–2 weeks, with cramps, energy and mood building over 4–8 weeks. Store in a cool, dry place.
This is a food supplement, not a treatment for any condition. Do not exceed the recommended daily dose. If you are pregnant or breastfeeding, take medication (especially for your thyroid, blood pressure or blood thinners) or have a medical condition, talk to your doctor before use. Never stop or change prescribed medication without your doctor.
Shipping & Returns
Orders leave our warehouse within 1 business day and most arrive in 3 to 5 business days. You'll get a tracking number by email the moment it ships. Free shipping on every order — your price at checkout is the final price.
Covered by our 90-day money-back guarantee. No return required, no questions asked.
What women report after 4 weeks on the Magnesium Complex
What women are actually saying
“I'd lie awake until 1 a.m. Two weeks into these, I was drifting off before my show ended.”
Lauren P., 42 · Sleep“Perimenopause wrecked my sleep and my mood. Four months in, I feel steady again.”
Michelle K., 47 · Perimenopause“Leg cramps woke me two or three nights a week. By the end of the first month they'd mostly stopped.”
Stephanie W., 51 · Leg crampsStress Burns Your Magnesium. This Refills It.
The 3 p.m. Crash
Magnesium, B6, B12 and folate contribute to the reduction of tiredness and fatigue, so your energy stays more even through the afternoon instead of falling off a cliff.
Stress That Leaves You Wired but Tired
Every demanding day draws down your magnesium. Topping it up daily supports a calmer nervous system and normal psychological function, so stress lands more softly.
Night Leg Cramps & Period Cramps
Magnesium contributes to normal muscle function. Women tell us the cramps that woke them at night, and the ones that came with their period, eased within weeks.
Racing Mind & 3 a.m. Wake-Ups
When your nervous system can finally switch off, falling asleep gets easier. Most women report deeper, less broken sleep within the first two weeks.
20 Ingredients. Two Capsules.
Magnesium Complex 800mg
Ten forms of magnesium in one blend, not just one. Contributes to normal muscle function, a normal nervous system and the reduction of tiredness and fatigue.
Vitamin D3 & K2
5,000 IU of D3 with 100 mcg of K2 (MK-7). They work alongside magnesium for normal bones, and vitamin D supports normal immune function.
Methylated B-Complex
B6, B12 and folate in their active forms (P-5-P, methylcobalamin, L-5-MTHF). Support energy, the nervous system, and B6 helps regulate hormonal activity.
Ashwagandha Root
A traditional adaptogenic root, included in the blend to round out the formula's calming side.
Myo-Inositol
A vitamin-like compound found in citrus and grains, included for cycle support.
Biotin & Vitamin C
Biotin contributes to the maintenance of normal hair and skin, and vitamin C to the protection of cells from oxidative stress.
Your First 90 Days on the Magnesium Complex
By the end of the second week I was drifting off before my show ended. I hadn't done that in years.
Days 1–14
The settling-in phase
Your magnesium stores start to refill every day. Most women notice calmer evenings and falling asleep faster by the end of the second week.
- 🌙 Calmer evenings
- 😴 Falling asleep faster
- 🧘 Less on edge
Around week three I realised I hadn't been woken by a leg cramp in days, and I wasn't snapping at everyone by 4 p.m.
Weeks 2–4
The tension-release phase
As your stores keep building, this is the window most women notice fewer night cramps and less tightness in the neck and shoulders, with steadier afternoons.
- 💪 Fewer night cramps
- 🌿 Less tension
- ⚡ Steadier afternoons
Six weeks in, I still have stressful days. I just don't take them to bed with me anymore.
Weeks 4–8
The cycle & mood phase
With magnesium, B6 and inositol supporting you every day, the week before your period feels calmer, cramps are easier and everyday stress lands more softly.
- 🌸 Easier periods
- 😊 More even mood
- 🛡️ Less on edge
Month three. My period used to wipe out a whole day. Now I barely notice it coming.
Days 60–90
The new-normal phase
Stress keeps drawing on your magnesium, and this tops it up every day. Kept up, rested mornings become your baseline and calm stops being something you chase. This is why most women keep going.
- 📈 Calm that lasts
- ☀️ Rested mornings
- 🔁 A routine you'll keep
Not Just Any Magnesium.
Syntro Magnesium Complex
Single-Form Magnesium & Gummies
Made For One Job: Helping You Unwind
Most women blame themselves: too much on their plate, not enough willpower, just getting older. Often it's simpler than that: stress has been burning through their magnesium for months. Syntro Magnesium Complex isn't a sleeping pill and it isn't a single-form tablet — it refills magnesium and the vitamins it works with, every day. Here's what women report after 4 weeks.
Figures are customer-reported, drawn from post-purchase feedback and reviews — not a clinical trial. Individual results vary. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease and is not a substitute for treatment prescribed by your doctor. Talk to your doctor before use if you are pregnant or breastfeeding, take medication or have a medical condition.
Try It Risk-Free for 90 Days
Take it for three full months. If you don't sleep better and feel calmer, email us and we'll refund your first order. No return required. No questions asked.
Questions About the Magnesium Complex
Why do I need magnesium if I eat well?
A balanced diet helps, but many women still fall short. Magnesium-rich foods like leafy greens, nuts and seeds aren't on most plates every day, and stress, caffeine, alcohol and intense exercise all draw down what you do get.
That's why so many women feel the signs — light sleep, cramps, feeling wired and tired — even when they eat well. Two capsules a day give you 800 mg of magnesium complex plus the vitamins it works with, consistently.
I'm in perimenopause or menopause. Is this for me?
Yes — many of our customers are. As hormones shift, sleep, mood and muscle comfort often change too, and those are exactly the areas magnesium and vitamin B6 support. Vitamin D3 and K2 work alongside magnesium for normal bones, which matters more after menopause.
Give it 4–8 weeks of daily use. It isn't hormone therapy and doesn't replace anything your doctor prescribes — if symptoms are affecting your daily life, talk to your doctor about your options too.
Will it make me drowsy during the day?
No. It isn't a sleeping pill and it doesn't knock you out. Magnesium supports your nervous system so you can wind down more easily when it's time to sleep; during the day most women simply feel calmer and more even.
If you'd like, take your two capsules with dinner so they're part of your evening routine.
Can I take this with my medication or other supplements?
It can generally be taken alongside most vitamins and supplements — just check you're not doubling up on vitamin D or magnesium from another product. If you take prescription medication — especially thyroid medication, blood pressure medication, blood thinners (vitamin K2 is in the formula) or sedatives — or have a medical condition, talk to your doctor first. Never stop or change prescribed medication without your doctor.
Why a 20-in-1 complex instead of plain magnesium?
Because magnesium doesn't work alone. Your body uses it in over 300 processes, and it works alongside vitamin D3, K2 and the B vitamins. A single-form tablet gives you one form of magnesium and nothing else.
This blend gives you 10 forms of magnesium plus D3, K2, active B6, B12 and folate, inositol, ashwagandha, biotin and vitamin C — in two capsules instead of five bottles.
What's actually inside it?
Per serving of two capsules: magnesium complex 800 mg (10 forms, about 350 mg elemental magnesium), vitamin D3 125 mcg (5,000 IU), vitamin K2 as MK-7 100 mcg, vitamin C 40 mg, vitamin B6 as P-5-P 1.7 mg, folate as L-5-MTHF 680 mcg DFE, vitamin B12 as methylcobalamin 12 mcg, biotin 300 mcg, ashwagandha root extract 10 mg, myo-inositol 10 mg and raspberry ketones 5 mg. Capsule: vegetable cellulose. Free from wheat, gluten, soy, dairy and tree nuts.
Is it safe? Can I take it if I'm pregnant?
Every batch is third-party tested for purity and potency, and the capsules are vegetarian with no sugar, gluten, soy or dairy. Take it with food — that's the easiest way to keep magnesium gentle on your stomach.
If you're pregnant, trying to conceive or breastfeeding, please don't start it without your doctor's go-ahead: the formula contains ashwagandha and a high dose of vitamin D. The same goes if you have a medical condition or take medication.
I've already tried other things. Why would this be different?
Most women who tell us that tried one form of magnesium on its own, a sugary gummy, or a mix of separate bottles they couldn't keep up with. This is magnesium in 10 forms with the vitamins it works with, in one daily habit you'll actually keep.
And if it doesn't work for you, you're covered by our 90-day money-back guarantee.
How quickly will I notice a difference?
Many women notice calmer evenings and fall asleep faster within 1–2 weeks. Fewer cramps and steadier energy usually build over 2–4 weeks, and cycle and mood support over 4–8 weeks. Full results build over 60–90 days of daily use.
How do I take it?
Two capsules a day with food and a glass of water — many women take them with dinner. Each bottle holds 60 capsules, a 30-day supply. Store it somewhere cool and dry.
Do I need to keep taking it?
Stress, caffeine and busy weeks keep drawing on your magnesium, so most women keep taking it to hold on to their results. Stop, and the support tends to fade over the following weeks. Two capsules a day is an easy habit to keep.
How fast is delivery?
Orders leave our warehouse within 1 business day and most arrive in 3 to 5 business days. Free shipping on every order, and you'll get tracking by email the moment it ships.
Do I have to subscribe?
No — it's your choice. Pick Try Once for a single order: you're charged once and nothing renews. Where Subscribe & Save is offered, you get a lower price on every order, delivered on a schedule that matches your supply. You can skip, pause or cancel anytime from your account, with no fees and no minimum.
What if it doesn't work for me?
Then you get your money back. Our 90-day guarantee means you risk nothing: no return required, no questions asked. Take it consistently — if you're not sleeping better and feeling calmer, email us and we'll refund your first order.
How do I reach you?
Email our support team and a real person answers. We read everything.
Real reviews from 68,124+ women
Individual results vary. Reviews reflect individual experiences.