You don't feel like yourself the week before your period.
Nothing is wrong with you. Your body is asking for the nutrients it's missing.
Recommended by experts
Guud Flow is recommended by trusted experts in women's health
Hormonal Health Coach
Bénédicte De Jaeger is a hormonal health coach who helps women get a grip on their cycle and hormonal balance. She combines science with practical tools for a balanced life.
Nutritionist & Orthomolecular Therapist
Sharon Asscher is a nutritionist and orthomolecular therapist. She helps women support their hormones through nutrition and targeted supplementation, grounded in scientific research.
Keep reading if this sounds familiar:
Mood swings
Fatigue that won't go away
Irregular cycle & PMS
How your mood shifts throughout your cycle:
The same pattern every month. Energetic, focused, motivated — and then one week before your period, it's as if another version of you takes over.
That's no coincidence. In the second half of your cycle, estrogen and progesterone shift — and that directly affects your mood, sleep, and energy. During this phase, your body needs more specific nutrients like B vitamins, vitamin C, iron, and zinc.
When those are missing, the transition feels heavier. Not because you're not strong enough — but because your body simply needs more.
Do you recognise this too, every single month:
Mood swings that put a strain on your relationships
Fatigue that won't go away, no matter how well you sleep
Outbursts of anger that you feel ashamed of afterwards
It's not your fault. And you're not imagining it.
Save up to 45% on Guud Flow
Finally, a supplement that understands your cycle.
One daily capsule with the active nutrients your body needs to keep your hormones in balance.
Your hormones ask for specific nutrients. Guud Flow delivers all of them in the active form your body actually absorbs: Quatrefolic®, zinc bisglycinate, potassium iodide, iron bisglycinate, vitamin B6 (P-5-P) and myo-inositol. No more 7 different bottles. No guesswork.
Guud was founded by Morgane Leten out of personal necessity after her PCOS diagnosis. Our formulations are approved by experts with years of experience in women's health — people who understand your body.
Most supplements contain vitamins and minerals in forms your body struggles to absorb, or in doses too low to make a difference. Guud Flow uses active, natural ingredients with no unnecessary fillers.
Try it. Take it daily. Give your body time to replenish what it's missing. If you don't feel a difference after 60 days, you get your money back. No questions asked.
4.7 / 5 based on 871 reviews
20,000+ women feel like themselves again
I've tried things before, but nothing really worked. Since I started taking Flow, I've noticed a difference. I feel more stable, and the mood swings that used to take over the week before my period are just… less. I should have found this so much sooner.
I read that you'd see results after 3 months — I had my doubts when I started Flow. But from month 4 onwards I felt much less tired and my mood swings disappeared too. My skin cleared up, which gave my confidence a real boost. After trying so many things, I've finally found something that actually works.
After years of trying, I finally feel like myself again. My mood is more stable, my energy is back, and even the people around me notice the difference.
Save up to 45% + 3 free gifts
Imagine this: waking up and feeling like yourself again. Not just one week a month — every week of your cycle.
“My mood feels much more stable, I react less intensely, and I just feel more like myself. Honestly, I never thought supplements would make this kind of difference — but I should have started this so much sooner!”
Feel like yourself again. All month long.
The multivitamin already supporting 20,000+ women throughout their cycle. Developed by experts, backed by scientific research.
✓ Hormonal balance
✓ Cycle support
✓ Energy & immunity
✓ Made in Belgium
Order now → Receive on {date}
Unlock at 30 Days
Free €10,00
Recipe Magazine
Unlock at 60 Days
Free €30,00
Vitamin D
Unlock at 90 Days
Free €33,50
Magnesium Complex
“My mood feels much more stable, I react less intensely, and I just feel more like myself. Honestly, I never thought supplements would make this kind of difference — but I should have started this so much sooner!”
Recommended by experts
Guud Flow is recommended by trusted experts in women's health
Hormonal Health Coach
Bénédicte De Jaeger is a hormonal health coach who helps women get a grip on their cycle and hormonal balance. She combines science with practical tools for a balanced life.
Nutritionist & Orthomolecular Therapist
Sharon Asscher is a nutritionist and orthomolecular therapist. She helps women support their hormones through nutrition and targeted supplementation, grounded in scientific research.
When will I receive my order?
| Guud Flow: ingrediënten per capsule | |
|---|---|
| Vitamine B6 (P-5-P) | 10 mg |
| Vitamine B12 (Methylcobalamine) | 2.5 µg |
| Foliumzuur (Quatrefolic) | 500 µg |
| IJzer (Bisglycinaat) | 14 mg |
| Zink (Bisglycinaat) | 10 mg |
| Magnesium (Bisglycinaat) | 100 mg |
| Myo-inositol | 200 mg |
Ordered before 16:30 on weekdays = shipped the same day. Delivery in NL/BE: 1-2 working days. Rest of EU: 3-5 working days.
Recipe Magazine
The Guud Recipe Magazine contains 8 hormone-friendly recipes that support your Flow routine. Meals that work with your cycle — so your hormones get support from every angle.
Vitamin D
Vitamin D3 (cholecalciferol) from the United Kingdom with MCT carrier oil from coconut for better absorption.
- Supports the immune system
- Supports bones and muscles
- Contributes to normal wellbeing
Magnesium Complex
Guud Vibes — a complex of magnesium and B6 that contributes to more energy, recovery after exertion, and psychological wellbeing during your cycle.
Frequently asked questions
Is Guud Flow right for me?
Guud Flow is designed for women who notice their cycle affects how they feel — and want to do something about it.
Does this sound familiar?
→ One week you feel energetic and sharp, and the next you don't feel like yourself at all.
→ You deal with mood swings, irritability or energy dips around your period.
→ You're getting enough sleep, but the fatigue stays.
→ You notice PMS symptoms putting pressure on your relationship, work or mood.
Flow is suitable for women at every stage: whether you've just come off the pill, you're in the middle of your fertile years, or you simply want to support your cycle better. The formula is safe during pregnancy and breastfeeding, 100% natural and vegan.
How long does it take to see results?
Most women notice a difference within 1 to 2 cycles — more energy, a more stable mood and fewer PMS symptoms.
What you can expect:
→ First few weeks: subtle changes in energy and sleep quality.
→ After 1–2 cycles: a noticeable difference in mood, irritability and PMS.
→ After 3 months: the most complete effect.
That's why we recommend taking Flow daily for at least 2–3 months. And it's why you have a 60-day Feel the Difference Guarantee.
Can I combine Guud Flow with hormonal contraception or medication?
Yes. Our supplements don't work like medication that intervenes in your body — they support normal functions and don't interfere with contraception or medication.
In fact, if you take the pill, supplements are actually recommended. The pill can deplete certain vitamins and minerals like folic acid, zinc and magnesium. Replenishing these nutrients helps your body cope better.
Taking specific medication? Always check with your doctor first.
What makes it different from other supplements?
We deliberately choose natural and active ingredients that are well absorbed by the body. We avoid the synthetic forms of vitamins and minerals, unnecessary fillers and colourings you often find in other supplements. Our supplements are formulated to be as natural as possible.
Guud Flow ingredients: Inositol, hydroxypropyl methylcellulose (capsule), L-ascorbic acid, iron bisglycinate, beta-carotene (vitamin A), rice starch, zinc bisglycinate, Oryza sativa L. (rice concentrate), nicotinamide (vitamin B3), cholecalciferol (vitamin D3), glyceryl dibehenate (anti-caking agent), calcium D-pantothenate (vitamin B5), pyridoxal-5-phosphate (vitamin B6), sodium riboflavin-5-phosphate (vitamin B2), thiamine mononitrate (vitamin B1), (6S)-5-methyltetrahydrofolic acid, glucosamine salt, methylcobalamin (vitamin B12), potassium iodide
More information:
- Food supplement.
- Cannot replace a balanced and varied diet and healthy lifestyle.
- Do not exceed the recommended daily dose.
- Keep out of reach of children.
- Notification number: NUT_PL_AS 4398/4
Is Guud Flow safe during pregnancy?
Yes, you can safely take Guud Flow during pregnancy.
Flow contains 500 mcg of active folic acid (Quatrefolic), which is essential for the development of your baby's nervous system. Alongside other vitamins and minerals, Guud Flow also contains 800 mcg of vitamin A — but in the form of beta-carotene. During pregnancy, the recommendation is not to exceed 3,000 mcg of vitamin A per day, so at 800 mcg you're well within the safe limit.
Can I cancel my subscription at any time?
You can manage your subscription easily and flexibly. You have the freedom to skip deliveries, adjust the delivery frequency, change your products or cancel your subscription at any time via our customer portal.
Need help? We're here for you. Reach us at support@guudwoman.com or via live chat, every weekday from 9am to 4pm.
How do I take Flow?
1 capsule daily. We recommend always taking your supplements with a proper meal, not on an empty stomach. Swallow them with plenty of water — not coffee — because some vitamins and minerals are absorbed less well when taken alongside coffee.
What about shipping?
Orders placed on weekdays before 4:30pm are shipped the same day.
We get that you don't want to try something without certainty. That's why we give you 60 days to feel it for yourself. No difference? Then you pay nothing. Get in touch with our customer service and we'll arrange your full refund. Simple, honest, no risk.
What do I get as a free gift?
Going for the Flex Plan?
You'll receive a Guud Recipe Magazine from us, with 7 recipes for a healthy lifestyle.
At 60 days you also get Vitamin D, which contributes to:
- The normal function of the immune system in adults and children.
- The normal absorption/use of calcium and phosphorus.
- The maintenance of normal bones & muscle function.
And, to make you feel even better, at 90 days you get a Guud Vibes (Magnesium Complex) for free. This contributes to:
- More energy & less fatigue – Feel recharged and ready for the day.
- Recovery after exertion – Supports normal muscle function.
- Cycle support – Better psychological wellbeing thanks to magnesium and B6.
Jan & Morgane – founders Guud WomanFor us, it's personal!
When Morgane was diagnosed with PCOS, her doctors told her there was little they could do. No explanation. No plan. No direction.
So she set out to figure it out herself. She retrained as a Nutrition & Fertility Coach, wrote the bestseller Het Cyclus Kompas, and discovered that the right nutrients made an enormous difference for her cycle and fertility.
She knew she wasn't the only one. And that other women deserved the same knowledge and support.
Together with Jan, she founded Guud Woman. One platform with knowledge, expert support and supplements for women with hormonal challenges. Because "just learning to live with it" isn't an option.
P.S. Your cycle will keep affecting your body every month. That doesn't change.
But how you feel during your cycle can change. Try Guud Flow for 60 days. Don't feel a difference? Money back.
Save up to 45% on Guud FlowYour hormones are trying to tell you something
The real reason behind your mood swings and fatigue.