PMS & Period Support

Rated 4.7 out of 5
Based on 103 reviews

We've experienced decades of bad periods and were tired of outdated, conventional period products. So we created the natural supplement we've all been looking for. Semaine PMS & Period Support works with your natural cycle, so you only need to take it when you are experiencing PMS or on your period.

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Capsules packed full of 9 natural ingredients that help you have your best period ever. Semaine was created by founders who struggled with painful periods their whole lives and wanted a natural solution.

  • 100% vegan and plant-based
  • Ph.D. formulated
  • Gluten free
  • No sweeteners
  • Soy free
  • Caffeine free

Your solution to a healthier, happier period.

  • Plant-based, clinically studied ingredients
  • Designed around your natural cycle
  • Helps support your body to decrease bloating and cramping*
  • More energy, and better workouts*
  • Just for when you are experiencing PMS or on your period
  • Healthy support for when you need it*

In our open-label trial, 91% of people felt better their first period they took Semaine. Participants reported reduced bloating, milder cramps, fewer headaches and increased energy and better workouts.


Start taking Semaine when your cramps and other PMS symptoms begin, or 1-2 days before you start to bleed. For most people, taking 2 pills in the morning and 2 in the evening works well, though we frequently take 2 capsules with every meal. Continue taking capsules until your period ends (Semaine is safe to take all cycle so if you have discomfort around other times like ovulation, you can Semaine then too!).


Always formulated without soy, hormones, or synthetic fillers, Semaine PMS & Period Support is full of just the good stuff:

  • Vitamin D3 (as vegan cholecalciferal from lichen) - 60 mcg (300% DV)
  • Magnesium (as Sucrosomial® Magnesium) - 45 mg (11% DV)
  • Ashwagandha (as Sensoril®) - 66 mg
  • Boswellia extract phytosome (as Casperome®) - 126mg
  • Curcumin phytosome (as Meriva®) - 324 mg
  • Green Tea phytosome (as GreenSelect® Phytosome) - 126 mg
  • Quercetin phytosome (as Quercefit®) - 141 mg
  • Resveratrol (as trans-resveratrol) - 123 mg
  • Silybin phytosome (as Siliphos®) - 75 mg

Meriva®, GreenSelect®, Quercefit®, Casperome® and Siliphos® are trademarks of Indena. S.p.A. Sucrosomial® is a registered trademark of Alesco S.r.l. Sensoril® is a registered trademark of Natreon, Inc.


Please allow 1 business day for processing. We aim to get orders turned around as quickly as possible. Shipping in the US is free for subscriptions, and $5 for single purchases. International friends, we can't offer susbscriptions at this time, but check out our cheap international shipping options. Don't forget that you may owe duties upon import.


average rating 4.7 out of 5
Based on 103 reviews
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103 Reviews
Reviewed by Zoe M.
Verified Buyer
I recommend this product
My health issues
  • Heavy Flow
  • Bloating
  • Nausea
Semaine helped with
  • Cramps
  • Heavy Flow
  • Fatigue
  • Nausea
Rated 5 out of 5
Review posted

amazing!!!

I was not able to take semaine on the days leading up to my period because my period is unpredictable and although I use a period tracker I never really know when it is coming. the first day of my period the cramps were intense and I had to take 2 capsules 4 times that day. all the following days of my period though, I have just had to take two capsules in the morning and two at night and the cramps have been minimal to nonexistent. Also I like that the pills don't have a strong scent or aftertaste. I tried another brand that had a very strong aftertaste that I didn't mind but I prefer not to have to deal with. So happy I don't have to rely on ibuprofen anymore!!

also I am usually incredibly nauseous on my period and I noticed I had 0 nausea! also my flow has always been heavy and the flow has significantly decreased. I am shocked.

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Semaine Health

I'm so glad Semaine helped you so much! And it's great to hear that it helped with your nausea as well!

Reviewed by Abiola N.
Verified Buyer
I recommend this product
My health issues
  • Endometriosis
  • Adenomyosis
  • PMDD
Semaine helped with
  • Bloating
  • Mood
  • Cramps
  • Digestive Issues
  • Fatigue
Rated 5 out of 5
Review posted

Improved mood

This product is amazing. It helps with pain, constipation and pms!

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Semaine Health

So awesome! Thank you for your review!

Reviewed by Michelle T.
Verified Buyer
I recommend this product
My health issues
  • Bloating
  • Acne
  • PMDD
  • Mood
Semaine helped with
  • Digestive Issues
  • Mood
  • Heavy Flow
  • Cramps
  • Stress
Rated 5 out of 5
Review posted

Loved it!

Helped kick cravings and stabilize my mood. Just my first week so I’ll definitely be trying again next month. Wish it was easier to take, as having to remember 2 pills 2x/day can be tricky, but I just put them out on my dresser so I remembered.

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Semaine Health

That's great news about the reduction in cravings and stabilizing your mood! And we totally understand that taking two pills two times a day can be tricky! We recommend you take that many because you'll get enough of the anti-inflammatory properties that are in the supplement. That being said, if your pain isn't bad, try taking two pills just once a day or one pill twice a day. Let us know how it goes!

Reviewed by Legally Bronde by Michelle M.
Verified Buyer
I recommend this product
My health issues
  • Endometriosis
  • Heavy Flow
  • Mood
  • PMDD
  • Bloating
Semaine helped with
  • Bloating
  • Mood
  • Cramps
  • Heavy Flow
  • Stress
Rated 5 out of 5
Review posted

I’m so amazed

I haven’t felt this good in 6 months. I can’t believe how effective this is & how little pain I’m feeling. I feel like myself again! Honestly, idk how I would be able to live or function w/o Semaine!

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Semaine Health

Well, this just made our day, Michelle!!

Reviewed by jenm
Verified Buyer
I recommend this product
My health issues
  • Migraines
  • Mood
  • Nausea
Semaine helped with
  • Bloating
  • Stress
  • Muscles
  • Energy
Rated 5 out of 5
Review posted

Thank you!

grateful to have a found a product that helps with period pain (mild but uncomfortable) and thrilled to support a woman owned business!

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Semaine Health

Thank you for your support! It means so much!