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4.7 out of 871 reviews
Stop losing yourself every month.
It's not you. It's what your body is missing.
Every day in my practice I see the same thing: women who stop recognising themselves in the weeks before their period. Irritable, exhausted, emotional and told it's normal. What they don't know is that their body is often just missing the right nutrients.
Sharon Asscher
Othomoleculair Therapeut, hormoonconsulent en darmtherapeut
How your mood changes throughout your cycle
Every month, the same pattern. Energetic, focused, motivated and then, a week before your period, as if a different version of you takes over.
Hormonal fluctuations have a direct impact on how you feel, think and respond. Not just physically, but emotionally too.
Sometimes your hormones get thrown off balance.
Stress, lack of sleep and nutrition can cause your body to miss the building blocks it needs to keep your hormones in balance. And when that balance is gone, you feel it, every single month.
Do you recognise this too?
- Your energy disappearing out of nowhere
- Mood swings that put pressure on your relationships
- Fatigue that won't go away, no matter how well you sleep
- The feeling of having two completely different personalities
And yet, many women think they just have to learn to live with it.
Your hormones are trying to tell you something
The real reason behind your mood swings and fatigue.
Feel like yourself again. Every day.
More than 20,000 women have gone before you. Guud Flow is the multivitamin that gives your body the building blocks it needs to keep your hormones in balance. Approved by experts and backed by scientific research.
Free gift with purchase
Unlock at 30 Days
worth £10.00
Recipe Magazine
Unlock at 60 Days
worth £30.00
Vitamin D
Unlock at 90 Days
worth £33.50
Magnesium Complex
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60-day Feel the Difference Guarantee* -
Pause or cancel whenever you want
Is Guud Flow right for me?
Guud Flow was developed for women who notice that their cycle affects how they feel and want to do something about it.
Do you recognise this?
→ One week you feel energetic and focused, the next week you don't feel like yourself at all.
→ You experience mood swings, irritability or energy dips around your period.
→ You sleep enough, but the fatigue remains.
→ You notice that PMS-related complaints put pressure on your relationships, work or mood.
Flow is suitable for women at every stage: whether you've recently stopped taking the pill, are in your reproductive years, or simply want to better support your cycle. The formula is safe during pregnancy and breastfeeding, 100% natural and vegan.
How long before I see results?
Most women notice a difference within 1 to 2 cycles: more energy, a more stable mood and less trouble with PMS.
That makes sense: your body needs time to replenish deficiencies and find a new balance. The bigger the deficit, the longer it takes.
What to expect:
→ First weeks: subtle changes in energy and sleep quality.
→ After 1–2 cycles: noticeable difference in mood, irritability and PMS.
→ After 3 months: the fullest effect, as your body structurally gets the right building blocks.
That's why we recommend taking Flow daily for at least 2–3 months. And that's why you get a 60-day Feel the Difference Guarantee: no result, no cost.
How do I use Flow?
Just 1 capsule per day. We recommend always taking your supplements with a full meal, not on an empty stomach. Take with water, not with coffee.
Some vitamins and minerals are less well absorbed by the body when taken alongside coffee.
Shipping & Returns
Orders placed on working days before 9pm are shipped the same day.
We understand you don't just try something without certainty. That's why we give you 60 days to feel the difference for yourself. No difference? You pay nothing. Contact our customer service and we'll arrange your full refund. Simple, honest, no risk.
Information & Scientific studies
Guud Flow contains vitamins and minerals linked to approved health claims:
→ Vitamin B6 contributes to the regulation of hormonal activity.
→ Vitamin B5 (Pantothenic acid) contributes to the synthesis and metabolism of steroid hormones, vitamin D and some neurotransmitters.
→ Zinc contributes to normal fertility and reproduction.
→ Iron & Vitamin B12 help reduce fatigue and support energy metabolism.
→ Folic acid is needed for the growth and proper functioning of the body, plays a role in the production of blood cells, and is important for the early development of the unborn child. Folic acid reduces the risk of birth defects such as neural tube defects (NTD).
A curated list of peer-reviewed studies on the individual ingredients in Guud Flow. These studies explore how vitamin B6, folic acid, zinc, iron and inositol contribute to hormonal balance, fertility and women's wellbeing.
→ Magnesium & vitamin B6 for PMS complaints (2011) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3208934/
→ Iron supplementation in menstruating women (2016) https://pubmed.ncbi.nlm.nih.gov/27087396/
→ Folic acid and the menstrual cycle (2015) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4567938/
→ Folic acid, MTHFR genotype and premenstrual symptoms — British Journal of Nutrition https://www.cambridge.org/core/journals/british-journal-of-nutrition/article/folate-intake-mthfr-genotype-and-premenstrual-symptoms/2E407CB6119A023A113C3285FF656984
→ Zinc and female fertility (2021)https://pmc.ncbi.nlm.nih.gov/articles/PMC8599883/
→ Myo-inositol in women with PCOS (2012) https://pubmed.ncbi.nlm.nih.gov/22296306/
Guud Flow is a 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.
This product contains only natural ingredients and is suitable for vegans. Free from gluten, soy, wheat, lactose, added sugar, artificial preservatives and colourings.
Notification number: NUT_PL_AS 4398/4 — 30 capsules — 19.5 g total net weight
Recipe Magazine
The Guud Recipe Magazine features 8 hormone-friendly recipes to complement your Guud Gut routine. Meals that work with your cycle, not against it, so your gut gets support from every angle.
Vitamin D
Vitamin D3 (cholecalciferol) from the United Kingdom with MCT carrier oil from coconut from Germany for better absorption
Magnesium Complex
A gentle magnesium and B6 complex designed to support deeper rest and steady energy. The forms used (bisglycinate and citrate) are chosen to be easy on your system, so you get the benefits without adding to any discomfort you're already feeling.
- Supports deeper rest so you wake up feeling refreshed
- Gentle magnesium forms, less likely to cause digestive discomfort
- Take 2 capsules daily with food. Safe during pregnancy and lactation
4.7 / 5 out of 871 reviews
20,000+ women feel like themselves again
I'd tried things before and nothing really stuck. But since taking Flow I notice a difference. I feel more stable and he mood swings that used to take over the week before my period are just… less. I wish I had found this sooner.
I read it takes about 3 months to see results, I had my doubts. But by month four, something shifted. I felt less tired, my mood swings disappeared, and even my skin started to clear up. After trying so many things, I finally found something that actually works.
After years of struggling with my cycle, I finally feel in balance. My mood is more stable, my energy is back and even the people around me notice the difference. I feel like myself again.
Frequently asked questions
60-day "Feel the Difference" guarantee
If after 60 days you notice no improvement in your energy, mood or cycle, you get your full first order refunded. No questions asked.
Who is Guud Flow for?
Guud Flow was developed for women who notice that their cycle affects how they feel and want to do something about it.
Do you recognise this?
→ One week you feel energetic and focused, the next week you don't feel like yourself at all.
→ You experience mood swings, irritability or energy dips around your period.
→ You sleep enough, but the fatigue remains.
→ You notice that PMS-related complaints put pressure on your relationships, work or mood.
Flow is suitable for women at every stage: whether you've recently stopped taking the pill, are in your reproductive years, or simply want to better support your cycle. The formula is safe during pregnancy and breastfeeding, 100% natural and vegan.
Can I combine Guud Flow with hormonal contraception or medication?
Yes. Our supplements support your body's natural functions, they don't interfere with how contraception or medication works.
In fact, if you're on the pill, taking supplements is actually recommended. The pill can deplete certain vitamins and minerals from your body, including folic acid, zinc and magnesium. By replenishing these nutrients, you're giving your body the support it needs.
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 synthetic forms of vitamins and minerals, unnecessary fillers and colourings that you often find in other supplements. Our supplements are formulated to be as natural as possible.
For example, we use Hydroxypropylmethylcellulose (HPMC) for our capsules, instead of (bovine) gelatine. HPMC is derived from cellulose, a plant-based material.
Many food supplements also contain silicon dioxide, magnesium stearate and titanium dioxide. These substances are used, among other things, to make capsules easier to fill or to make them white. We use no silicon or titanium dioxide, because the EFSA (European Food & Safety Agency) no longer considers these substances safe due to possible negative effects on genetic material (genotoxicity).
When will I notice results?
Most women notice a difference within 1 to 2 cycles: more energy, a more stable mood and less trouble with PMS.
That makes sense: your body needs time to replenish deficiencies and find a new balance. The bigger the deficit, the longer it takes.
What to expect:
→ First weeks: subtle changes in energy and sleep quality.
→ After 1–2 cycles: noticeable difference in mood, irritability and PMS.
→ After 3 months: the fullest effect, as your body structurally gets the right building blocks.
That's why we recommend taking Flow daily for at least 2–3 months. And that's why you get a 60-day Feel the Difference Guarantee: no result, no cost.
Is Guud Flow safe during pregnancy?
Yes, absolutely. Flow contains 500 mcg of active folic acid (Quatrefolic), which is essential for the development of your baby's nervous system. Flow also contains 800 mcg of vitamin A, but in the form of beta-carotene. During pregnancy, the recommended maximum is 3000 mcg per day — so at 800 mcg, you're well within the safe range.
Can I stop 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 through our customer portal.
Need help? We're here for you! Contact us at support@guudwoman.com or via the chat.
What about shipping?
Orders placed on working days before 9pm are shipped the same day.
We understand you don't just try something without certainty. That's why we give you 60 days to feel the difference for yourself. No difference? You pay nothing. Contact our customer service and we'll arrange your full refund. Simple, honest, no risk.
What do I get as a free gift?
Choosing the Flex Plan?
You'll receive a Guud Recipe Magazine, featuring 8 hormone-friendly recipes.
With the 60-day plan you'll also receive Vitamin D drops, which contributes to:
- The normal functioning of the immune system in adults and children.
- Normal absorption and use of calcium and phosphorus.
- The maintenance of normal bones and muscle function.
And, to help you feel even better, with the 90-day plan you'll receive Guud Vibes (Magnesium Complex) for free. This contributes to:
- More energy & less fatigue – Feel recharged and ready for the day.
- Recovery after exercise – Supports normal muscle function.
- Support during your cycle – Better psychological wellbeing thanks to magnesium and B6.
When Morgane was diagnosed with PCOS, her doctors told her there was little they could do. Mood swings, hormonal skin issues, difficulty getting pregnant. No explanation. No plan. No direction.
So she figured it out herself. She retrained as a Nutrition & Fertility Coach, wrote Het Cyclus Kompas — now in its 8th edition — and discovered that the right nutrients made an enormous difference to her cycle and fertility.
That made her angry. Because if this worked for her, why did nobody know about it? Why did millions of women have to figure it out on their own?
That's why Guud Woman exists. No unnecessary fillers. No vague promises. Supplements with active, scientifically backed ingredients. Because women deserve better than "just be patient."
More balance. Less hormonal chaos.
Support your body throughout your cycle so you feel more stable, more energetic and more in balance.