Frequently Asked Questions – Hey Sister! Support

Hey Sister! & Khapregesic®

What is the main ingredient in Hey Sister! Products?

Khapregesic® is the main ingredient in all of our Hey Sister! products. Khapregesic® is a plant-based active ingredient. Developed with advanced technology, Khapregesic® retains the natural profile of compounds found in the Khaya senegalensis tree (pronounced Ky-yar sen-ee-gal-en-sis), also known as Khaya (Ky-yar for short).

What are the benefits of Khapregesic®

Khapregesic® (Khaya senegalensis dry stem bark) is traditionally used in Western herbal medicine to relieve menstruation pain, symptoms of premenstrual tension, and symptoms of menopause, including hot flushes, night sweats, and mood swings.

What’s the difference between the OG and Life ranges?

OG Range (our original formula): is packed with our single hero ingredient Khapregesic® - specifically focusing on the therapeutic relief for those managing period pain & PMS. OG is also HASTA certified, meaning this range is safe for athletes to use. HASTA is the only laboratory in Australia able to provide independent Certification of sport supplements by testing for WADA prohibited substances.

Life Range: as with OG, Life is packed with our hero ingredient Khapregesic®, however each stage of our Life Range, from Teen Period through to Menopause, includes added vitamins and minerals that are critical to the wellbeing of a woman at each stage of Life. The added nutrients have been carefully selected, by women, for women.

Where is Hey Sister! made?

Grown in Australia's pristine tropical north on Australian & USDA Certified Organic Khaya senegalensis plantations. We use sustainable patent-pending harvest technology to ensure our trees thrive post-harvest, creating a renewable natural resource while storing carbon to benefit the planet.

The hero ingredient in Hey Sister!, Khapregesic®, is 100% Australian grown and processed. It has no offshore processing. It’s local, clean, and traceable from soil to shelf.

You can read more about this on our science page!
https://heysister.com/pages/our-science

Effectiveness & expectations

How long until Hey Sister! works for me?

Everyone's pain journey is different. While some may notice a difference quickly, others find it takes regular use over 2 to 3 cycles to achieve a meaningful result. Many people mistakenly fail to complete the full recommended dosage and duration during their cycle, meaning they may not notice the full impact. Always follow the directions for use on the pack and if symptoms persist, seek advice from a healthcare professional.

Directions & practical tips

How do I take Hey Sister!?

Always follow the directions for use on the pack and if symptoms persist, seek advice from a healthcare professional.

I can’t swallow tablets — can I crush Hey Sister!?

Yes, you can crush Hey Sister! tablets. They can be mixed with water or honey. Just note the taste can be bitter with just water so we suggest mixing in a little honey to help.

Can I use Hey Sister! if my periods are irregular?

Yes, if your periods are irregular, we recommend taking Hey Sister! at the first sign of symptoms. Always follow the directions for use on the pack and if symptoms persist, seek advice from a healthcare professional.

Buying, shipping & subscriptions

Where can I purchase Hey Sister!

You can purchase Hey Sister! directly on our website, it’s free shipping and we offer a money back guarantee if Hey Sister! Does not work for you.

Hey Sister! is also available in 700+ pharmacies. Find your nearest pharmacy using our store locator:
https://heysister.com/pages/find-a-store

We also offer a subscription model, which means each month, or quarter, we will automatically ship out your chosen Hey Sister! Product, ensuring you don’t ever run out, this is also a cheaper option for you.

Where do you ship to?

Hey Sister! ships Australia-wide (and to selected international locations). Orders are usually processed within 1–2 business days, with tracking available once dispatched.

We ship our products worldwide from Australia using international express shipping. No matter where you are, we'll make sure your order reaches you as quickly as possible.

How do I manage my subscription?

You can skip, reschedule, advance or cancel your subscription at any time using our subscription management portal.

Just login here using your email address (we will send you a one-time verification code).

What is the MTick?

The MTick is a universal shopping symbol and certification for menopause-friendly products. Find out more here.

Do you offer a money back guarantee?

Yes! All Hey Sister! products come with a money-back satisfaction guarantee on any 1 transaction within the last year. Please note that individual results may vary, and this guarantee does not imply the product is effective in all cases.

Read the full terms and conditions here.

Peace of Mind shopping

Try Hey Sister! Love it or It’s Free.

We believe in Hey Sister! so much that if your not satisfied, we’ll refund your purchase. Up to one transaction, within a year of purchase date. No questions asked. You’ve got nothing to lose.
T&Cs apply.

*Regulatory claims

*A Khaya senegalensis preparation known as Khapregesic®. Scientific evidence: [PERIOD] Lopresti A. et al. "An examination into the safety and efficacy of Khapregesic®, a Khaya senegalensis preparation, on pain, physical and emotional wellbeing in women experiencing menstrual distress: a randomised, double-blind, placebo-controlled trial". [MENOPAUSE] Lopresti A. et al. " An examination into the safety and efficacy of Khapregesic®, a Khaya senegalensis preparation, on physical, and psychological wellbeing in women experiencing menopausal symptoms: a randomised, double-blind, placebo-controlled trial.” Both trials funded by Bioactive Natural Health Pty Ltd. View and download the [Period] clinical trial on PubMed. The Menopause clinical trial is due to be published in late 2026. Traditional paradigm: 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.