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PMS & Period Support

PMS & Period Support

Plant-based period relief
Rated 4.7 out of 5
93 Reviews

Get better periods now

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What Semaine Users Say

I'm in the middle of taking Semaine and I see a BIG difference in how I feel. Last month I was tortured by cramps and this month is SO much better!
Kaitlyn, Atlanta GA
I've had a few cramps here and there, but overall Semaine has been a miracle
Lauren, Salem MO
I always want to take ibuprofen or Aleve but know they will never help, so I never do – but Semaine did!
Diane, NYC
I had energy all day – felt refreshed compared to feeling sluggish and irritable all day. Plus my cycle was shorter!
Christina, Atlanta GA
The thing I've noticed most is my energy level. I've had so much energy for all my work and was literally dancing in my office!
Liz, Atlanta GA

Our goal: your best period ever
We know what it's like to have painful periods. Semaine was created by founders who struggled with painful periods their whole lives and wanted a natural solution.

We sourced the highest quality plant extracts that help lower the inflammation in your body: working with your body's natural cycle and not against it, so that you can have your best period ever.

Want to know how it works? Check out the details below:


28 capsules packed full of 9 natural anti-inflammatory 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
  • Decreases bloating and cramping*
  • More energy, and better workouts*
  • Just for 7 days
  • Better for you*

Over 91% of people feel better their first period they take Semaine. Benefits include 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 best though you can take more if needed. 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 additives, hormones and fillers, Semaine 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 is always free in the US. International friends, shipping will cost $15, and please check out our international page at Semaine International.


average rating 4.7 out of 5
Based on 93 reviews
  • 5 Stars
    74 Reviews
  • 4 Stars
    12 Reviews
  • 3 Stars
    4 Reviews
  • 2 Stars
    3 Reviews
  • 1 Star
    0 Reviews
93 Reviews
Reviewed by Angelica E.
Verified Buyer
I recommend this product
My health issues
  • Heavy Flow
  • Mood
  • Bloating
  • Acne
  • Nausea
Semaine helped with
  • Bloating
  • Cramps
  • Skin
  • Fatigue
Rated 5 out of 5
Review posted

THIS STUFF IS THE TRUTH

This was my FIRST months taking this supplement. Normally, I CRY and my whole world shuts down when my cycle comes down. I usually have to plan around it. This month I took Semaine about 3 days before I knew it was coming and it eased my pain in ways I’ve never known. The day it comes my pain is usually. 12 out of 10. This time while I wasn’t completely painless it was a manageable ache. I was at a solid three or four.

The whole cycle my stomach was upset which is to be expected but the pain was not at all near what I knew nor was my bloating. I am so grateful for this product and will continue to use it. I’m sure with time and consistency I’ll see less and less of any symptoms.

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Semaine Health

We're so grateful for you! And grateful that you experienced such a difference with Semaine! GI issues and period pain are very common so we made sure to only use ingredients and amounts that wouldn't make GI issues worse. Thank you for your review!

Reviewed by Yadira S.
Verified Buyer
I recommend this product
My health issues
  • Endometriosis
  • Heavy Flow
  • Bloating
  • Acne
  • Mood
Semaine helped with
  • Bloating
  • Mood
  • Stress
Rated 3 out of 5
Review posted

Not sure yet

This is my second period with Semaine in the mix. The first time, I felt like this product really really helped. The second time, I felt like it did nothing (but my period was ridiculously painful this last time, so who knows). I will continue to use this product, even on days that I am not on my period but feel like I have swelling due to exercise, because I feel that the ingredients are of high quality. I hope my third time I can see if this is something that is helping.

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Semaine Health

Thank you for your review. We're so sorry to hear that most recent period was so painful! You are probably aware that stress and diet can make our periods so much more painful. If this is the case for you, hopefully you won't have those triggers next time you're on your period. If not, it's important to talk about your pain levels with your doctor (which you probably have done/are doing). And yes, Semaine has high quality ingredients without any questionable fillers, so it's a great idea to take it if you're feeling inflamed or bloated even when you're not on your period. Please keep us posted!

Reviewed by Lauren G.
Verified Buyer
I recommend this product
Semaine helped with
  • Cramps
Rated 5 out of 5
Review posted

Semaine works!

My period cramps are are usually about a level 6/7 on a scale of 1-10. I use a topical pain reliever that works great, but Semaine was the perfect addition to my period care. My cramps were definitely down to a level 4/5 pain, plus my topical treatment...I felt so good! You need Semaine in your monthly period care lineup!

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Semaine Health

Yay! So great to hear that Semaine helped to decrease your pain along with your topical treatment. Having multiple tools in your period pain toolbox is so smart!

Reviewed by Michelle H.
Verified Buyer
I recommend this product
My health issues
  • PMDD
Semaine helped with
  • Bloating
  • Mood
  • Energy
  • Fatigue
  • Breast Tenderness
Rated 5 out of 5
Review posted

Big help with my PMDD

I have suffered with PMDD for many years and usually use birth control to manage it. I tried Semaine as a healthier, more natural option and I am so happy with the results. Semaine actually helps way more than birth control ever did. Can't live without it!

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Semaine Health

We know PMDD can be so debilitating and it's such wonderful news to hear that Semaine has helped you so much!

Reviewed by Alethia M.
Verified Buyer
I recommend this product
My health issues
  • Heavy Flow
  • Bloating
Semaine helped with
  • Bloating
  • Cramps
  • Heavy Flow
  • Energy
  • Fatigue
Rated 5 out of 5
Review posted

A true life saver!!!

I am a mom of a 7th month old baby girl, although I am breastfeeding my period came three months during postpartum. I could barley get out of the bed, my flow was the heaviest I’ve ever experienced and my body felt like it was beaten up (of course my hormones were still balancing) but due to prior stomach sensitivities I was unable to take any over the counter medication. I was searching for a safe natural support especially since I am breastfeeding so when a friend suggest Semaine I did some research and I was sold. I’ve taken semaine for the past two cycles and have felt amazing. My energy level was back, my body wasn’t aching, my cramps weren’t unbearable and I was able to workout during the first days of my cycle. Most importantly, I was able to tend my daughter while not being in pain. I love this stuff and will continue using it.

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Semaine Health

Your review made our day, Alethia!! We were very careful when formulating Semaine to make it as safe as possible for breastfeeding mothers and for those trying to conceive. And we can absolutely relate to not being able to take over the counter medications due to stomach sensitivities. We're so, so, so glad that Semaine has made your periods so much better - and super impressed that you worked out while on your period AND raising a newborn!!!