3 benefits.webp__PID:9f0a2feb-a215-4044-829d-1fa28e2cd025

image__1_-removebg-preview.png__PID:e66b9015-1660-4f0b-96f1-c5e85c69494b

Noah B.

"Helps stabilise my mood nearly as much as anti-anxiety meds and reduces my cramping so much that I don't need any other painkillers despite my endo"

Verified Buyer

Rachel A.

"I was skeptical but hopeful and surprisingly after just a day I felt this working! My pain is random and can happen anytime but lately almost daily, so this is a great solution for me."

Verified Buyer

Che D.

"At first, the price made me hesitant. But those awful period days cost me in lost work and ruined plans. Hey Sister! is an investment in me and my health and well-being"

Verified Buyer

Hey Sister! Period.

Backed by science and proven to help relieve intense period symptoms and promote overall wellness for women.

We recommend new customers allow up to 3 menstrual cycles to see full benefits. Start with a discounted 3 month supply.

Subscription Product Buy Box

Subscribe & Save

Monthly Delivery Save $10

A 1-month supply each month

FREE Shipping - Cancel Anytime

$29 per month

3-Month Delivery Save $42

A 3-month supply with refills delivered every 3 months

FREE Shipping - Cancel Anytime

$25 per month

Exclusive Ad Only Offer

12-Month Delivery Save $228

A 12-month supply with refills delivered every 12 months

FREE Shipping - Cancel Anytime

FREE BONUS: Control Cramp Loose Leaf Tins ($13.20 value)

$20 per month

1-Month Supply

One-time delivery of 1 month supply

FREE Shipping

$39

3-Month Supply Save $32

One-time delivery of 3 month supply

FREE Shipping

$85

Exclusive Ad Only Offer

9-Month Supply Save $152

One-time delivery of 9 month supply

FREE Shipping

FREE BONUS: Control Cramp Loose Leaf Tins ($13.20 value)

$199

If You Don't Fall Head Over Heels In Love With Our Products, We'll Give Your Money Back. No time restrictions. Just Ask.

The Science Behind Hey Sister!

Hey Sister! Period is a new, natural remedy proven to reduce multiple menstruation symptoms at once. It harnesses the power of strong, plant-based anti-inflammatories in its hero ingredient, Khapregesic®, to bring effective relief that targets the root cause.

What Causes Period Symptoms

For most women, menstruation can bring symptoms like cramps, bloating, mood swings, heavy bleeding and fatigue. The cause of these symptoms typically stems from an overproduction of prostaglandins - a hormone-like substance that influences inflammation, pain, and uterine contractions. The excess of prostaglandins during menstruation increases inflammation, sparking these common period symptoms and often making them more intense than normal.

How Khapregesic® Works

Khapregesic® is powered by a single, natural ingredient known for its strong anti-inflammatory effects^[1], high antioxidants^[1], and naturally occurring prebiotics^[2]. This unique combination helps to ease period symptoms by reducing prostaglandin levels, which, in turn, decreases inflammation and alleviates discomfort. The result? Symptom-free relief that's natural.

Why Choose Hey Sister!

We know that every woman’s period is different, and there’s no one-size-fits-all approach to menstrual relief.

But we also understand there's a need for a natural, effective alternative to traditional painkillers - one that offers relief without the need for synthetic drugs.

That’s exactly why we created Hey Sister! Period. Our plant-based solution provides powerful, natural symptom relief while supporting long-term wellness without the harmful side effects often associated with drug-based painkillers.

Unlike standard pain medications, Hey Sister! goes beyond simple symptom relief. Each tablet is packed with antioxidants and prebiotics to boost gut health, immunity, and energy levels.

For holistic, comprehensive support through your cycle, Hey Sister! is here to help you feel balanced, healthy, and at ease, every month.

What's Inside It?

Each tablet contains:

Khapregesic® 500 mg (Khaya Senegalensis Dry Stem Bark).

Our products are manufactured in Australia from Australian-grown certified-organic Khaya Senegalensis.

100% Plant-based. No added artificial flavouring, colouring or preservatives.

Free from dairy, gluten, eggs, nuts, and yeast.

Hey Sister! is regulatory approved. Registration numbers AUST L 315762, 407536, 407537.

How Should I Take It?

Take 2 tablets daily, one in the morning and one in the evening, with or without food and continue for 7 days or as professionally prescribed.

If symptoms persist, talk to your health professional.

Children: Use in children under 12 years is not recommended.

Pregnancy: Do not take if you are likely to become pregnant, pregnant, or breastfeeding.

For a full set of directions always refer to the pack.

Click to Read More FAQs

Noah B.

"Helps stabilise my mood nearly as much as anti-anxiety meds and reduces my cramping so much that I don't need any other painkillers despite my endo"

Verified Buyer

Rachel A.

"I was skeptical but hopeful and surprisingly after just a day I felt this working! My pain is random and can happen anytime but lately almost daily, so this is a great solution for me."

Verified Buyer

Che D.

"At first, the price made me hesitant. But those awful period days cost me in lost work and ruined plans. Hey Sister! is an investment in me and my health and well-being"

Verified Buyer

How Does It Work? Just Take 2 A Day.

1. Strong Anti-Inflammatory Properties

Inflammation is often the root cause of period symptoms or is the culprit intensifying the cramps, pain, and discomfort. With Hey Sister!, you get targeted relief that hits the inflammation head-on, giving you real, lasting comfort when you need it the most - more than the "quick-fix" of a painkiller.

2. Comes With High Antioxidant Levels

Oxidative stress drains energy, worsens PMS, and leaves you feeling run down. Hey Sister! is packed with antioxidants that work to combat this stress, protecting your cells and helping to reduce the intensity of period symptoms like fatigue and mood swings. Helping provide you with comprehensive symptom relief.

3. Packed With Natural Prebiotics

Loaded with prebiotic-rich ingredients, Hey Sister! supports the growth of beneficial gut bacteria, providing natural relief from bloating and digestive discomfort. This means less of that heavy, uncomfortable feeling during your period and more of feeling like yourself again.

Our Supporters

1000s of Women Can't Be Wrong...

7c67e454897dbe2200ce803067f43117.jpeg__PID:f9639531-8312-4006-a57f-e693af162fa8

Madison Rose.

@___madisonrose. 176.5K Followers

8ce7f744ee3393e1f36d118794c089c4.jpeg__PID:2042aa63-57f0-4502-9a40-f7fba0d618dc

Chloe.

@_chloechilds. 223.4K Followers

4f8011d0c72f17c9f19c1fd34fefa6da.jpeg__PID:db22471b-7450-4912-92a5-8bacf45e843e

Casey.

@caseyaburgess. 6.7K Followers

What's Inside?

Meet Khapregesic® - Your New Best Friend.

Say goodbye to your period nightmares with Hey Sister! - the natural, effective, and safe remedy you’ve been waiting for to better manage your period symptoms.

Our solo, hero ingredient is Khapregesic®, an exclusive formulation from the Khaya Senegalensis tree, a remarkable ingredient known for its potent anti-inflammatory properties.

This plant-based hero doesn’t just mask your period symptoms like other period remedies do - it actually gets to the root cause of them, by targeting the inflammation creating those nasty symptoms you experience before, during and after your period week.

How does Hey Sister! work? It’s simple: most period symptoms stem from an overproduction of prostaglandins during menstruation, which causes excess inflammation in your body. By reducing this inflammation, Hey Sister! tackles the root cause, offering real symptom relief* that lasts.

"Khaya [our hero active ingredient] appears to have a very low toxicity risk... Potency is high and efficacy is reached at very low doses" ^[5]

introducing-jade-walker-our-director-of-health-and-wellness-931954.webp__PID:66a48f48-bc0a-4856-84a7-39743119817c

User Research

Supported by Data

⁺Results from practitioner supervised trial over a 10-day period.

88%

Experienced At Minimum 'Good' Levels of Abdominal pain relief⁺

74%

Experienced At Minimum 'Good' Levels of Bloating Relief⁺

77%

Experienced At Minimum 'Good' Levels of Increased Energy⁺

81%

Experienced At Minimum 'Good' Levels of Better Sleep⁺

87%

Experienced A Minimum Of 'Good' Improvement in Brain Function⁺

83%

Experienced At Minimum 'Good' Levels of Anxiety Relief⁺

Expert Reviews

Trusted by Health Practitioners

Jade Walker

Director of Health & Wellness, Hey Sister! and Naturopath (Bachelor of Health Science)

I've been using Hey Sister for almost five years... As someone who used to experience debilitating period pain with endometriosis, I had tried every natural product known to a naturopath. But this product is truly the only thing that comes close to being comparable to the way a conventional period pain reliever (such as Ibuprofen) works in both being fast-acting and relieving.

It's not just the pain. This is a next generation period pain reliever that's also high in plant polyphenols for tissue repair, microbiome modulation and health risk prevention. It's about bloody time we had a better option and Hey Sister is the answer.

Caroline Robertson

Naturopath, Anatomy and Physiology lecturer, and writer with over 35 years’ experience specializing in women’s health.

caroline-clinic-pic-a-clean.jpg__PID:9c297b05-2038-4770-8254-25de31775d82

Reflecting on my own history with painful periods, I wish I’d had Hey Sister! Period sooner. But I’m profoundly grateful to share it now - especially with women who feel like they’ve tried everything else to no avail. You don’t have to silently endure crippling cramps. Confront the real root of your period torment - inflammation - with a safe, herbal solution that genuinely works.

Frequently Asked Questions

Is It Actually Effective?

Yes, Hey Sister! is a genuinely effective solution to reduce your period pains, cramps and other mensuration symptoms. Besides the fact it’s been used for centuries in Western herbal medicine to reduce inflammation and pain, research and clinical studies can back up the claims we make about the effects of our products.

We're one of the few companies in the women's health space that takes efficacy seriously and have spent our own money to put our products to the test in clinical settings. We have a few recent observational trials underway and are committed to releasing the findings once they've concluded - as we've done with previous trials.

What Symptoms Can It Relieve?

Hey Sister! Period offers comprehensive menstruation symptom relief and is proven to help reduce or relieve the following symptoms:

Menstruation Pain / Dysmenorrhoea.
Menstrual Spasms / Cramps.
Heavy Menstruation / Periods.
Weariness / Tiredness / Fatigue / Feeling of Weakness.
Abdominal Bloating / Spasm.
Gastrointestinal Pain.
Occurrence of Premenstrual Tension Symptoms (PMS).
Feelings of Aggression / Irritability Associated with Premenstrual Tension.
Mood Changes / Mood Swings Associated with Premenstrual Tension.
Breast Pain / Tenderness Associated with Premenstrual Tension.
Confusion Associated with Premenstrual Tension.
Symptoms of Mild Anxiety.
Symptoms of Heartburn.

Is It Safe? Are There Any Side Effects?

Yes, Hey Sister! is considered safe for use every period cycle. Out of all the research done on our active ingredients, there's not been one report of harmful side effects. Additionally, a part of what makes Hey Sister so safe to use especially, on a regular basis is the fact that our active ingredients are water soluble and will flush out the body just like a vitamin would once you stop taking it - there's no build-up, lingering effects, or tolerance build-up.

How Long Until I See Results?

With Hey Sister! Period, most customers report immediate results - at worst - you'll feel the difference same day you start taking it regardless of when you start taking it during your period.

For best results, we recommend you start dosage 1-2 days before your period, or at least as soon as you experience symptoms.

For full, comprehensive results, we recommend taking Hey Sister! for at least 3-period cycles.

If you're skeptical about our products working for you, we provide all new customers with a "Love It Or Money Back" guarantee on all first orders - so there's nothing to lose and everything to gain from trying us out!

How Should I Take It?

What's Inside Hey Sister! Period?

Can I Take It With Other Medications?

Yes, Hey Sister! can be taken safely at any time and with any other food, supplement or medication.

What If It Doesn't Work For Me?

Periods are complex, and our bodies even more so. We would be  surprised if you didn't feel any benefit from taking Hey Sister! especially when taken as directed. But if you're one of the unlucky few who don't, don't stress, we got your back.

We provide all new customers with a "Love It Or Money Back" guarantee on all first orders - so there's nothing to lose and everything to gain from trying us out!

Don't be afraid to contact support if you find it doesn't work as expected or if you need help with proper use or dosing.

How Long Does Shipping Take?

Orders are processed and dispatched within 24 hours of being received (during weekdays) and should arrive approximately 2 – 10 working days from dispatch depending on the address location.

Although once we ship it out, delivery times are out of our control and subject to Australia Post shipping times, we'll do our best to ensure a speedy arrival and assist with any shipping related support questions or concerns you have.

If you need a speedy delivery we offer a discounted express shipping option, just select it at checkout.

How Do I Manage My Subscription?

You can manage your subscriptions and view order history by logging in and navigating to heysister.com/account.

Alternatively, contact our support at support@heysister.com, or leave us a message on our live chat.

Customer Reviews

What Our Customers Say About Hey Sister!

What a Skeptic Turned Fan Had to Say About Hey Sister!

Our products aren't going viral because of fancy packaging... It's because they work incredibly well for the women using them every month for their period. But we can appreciate the skepticism around new products - like ours - which come with big bold promises. So rather than just giving you our word, listen to what Tia - a skeptical customer - had to say about us:

"I thought it actually was a gimmick... How can a natural plant-based tablet help your cramps... There's something in this that has helped with the cramping... I'm able to go about my day now... It's legit..."

tia TT.webp__PID:0bb93e24-61ee-445f-b4db-4c22bb4bd109

Tia Jaie.

@tia.jaiee. 19.12K Followers

Disclaimer: This is a honest and genuine review of Hey Sister! Period from Tia (@tia.jaiee on TikTok). We did not pay or compensate her in any way, shape or form for this review and the statements she made about our products in this testimonial video.

Hey-Sister_Master_RGB.png__PID:7b11f243-807c-4d3b-a661-bf3a4274bf8f

Shipping & Delivery
Terms of Service
Privacy Policy
Refunds & Returns

*Regulatory claims

Traditionally used in western herbal medicine to: [PERIOD] relieve menstruation pain, reduce occurrence of abdominal bloating, relieve symptoms of mild anxiety, reduce mood swings associated with premenstrual tension, [MENOPAUSE] reduce occurrence of menopausal symptoms, relieve symptoms of mild anxiety, reduce heavy menstruation (during peri-menopause).

Always read the back of the pack and if symptoms persist, seek the advice of a healthcare professional.

Regulatory Reg. Nos. AUST L 315762, 407536, 407537. AU and US Certified-Organic No: 11640

© Hey Sister! 2024 BioActive Natural Health Pty Ltd

Sources

[5] Barg, C., & Robertson, C. (2019). Khaya senegalensis: Discover Khaya, the period pain reliever. Journal of the Australian Traditional Medicine Society, 25(3), 148. ISSN 1326-3390.

[4] Direct, H. (2024) Liver failure, healthdirect.gov.au. Available at: https://www.healthdirect.gov.au/liver-failure#:~:text=low%20blood%20pressure-,Paracetamol%20overdose%20is%20the%20most%20common%20cause%20of%20acute%20liver,Centre%20on%2013%2011%2026. (Accessed: 2024).

[3] Gow PJ, Jones RM, Dobson JL, Angus PW. Etiology and outcome of fulminant hepatic failure managed at an Australian liver transplant unit. J Gastroenterol Hepatol 2004; 19: 154-159.

[2] CHARACTERIZATION OF BIOACTIVE PHYTOCHEMICALS FROM THE STEM BARK OF AFRICAN MAHOGANY Khaya senegalensis (MELIACEAE) Huaping Zhang 12-2008; https://tigerprints.clemson.edu/all_dissertations/305/. Journal of the Australian Traditional Medicine Society Vol25 No3 2019 pp146-149. Journal of the Australian Natural Therapists Association Vol34 No3 2020 pp63-65

[1] Anticancer Research (2006) 26(3 B) 2397-2405 Chemopreventive effects of Khaya senegalensis bark extract on human colorectal cancer; Androulakis X, Muga S, Chen F, et al; https://www.mendeley.com/catalogue/f7090483-0e6d-300e-8a4e-8ba7ac808564/. Journal of the Australian Traditional Medicine Society Vol25 No3 2019 pp146-149. Journal of the Australian Natural Therapists Association Vol34 No3 2020 pp63-65

Peace of Mind shopping

MONEY-BACK GUARANTEE

Embark on your Hey Sister! journey with confidence. If you're not satisfied, we offer a money-back guarantee.

*Regulatory claims

Traditionally used in western herbal medicine to: [PERIOD] relieve menstruation pain, reduce occurrence of abdominal bloating, relieve symptoms of mild anxiety, reduce mood swings associated with premenstrual tension, [MENOPAUSE] reduce occurrence of menopausal symptoms, relieve symptoms of mild anxiety, reduce heavy menstruation (during peri-menopause). Always read the back of the pack and if symptoms persist, seek the advice of a healthcare professional.