World First. Gentle Relief You Can Trust.


Join thousands of mums and teens who’ve chosen a clinically tested*, dual-action formula to ease both the physical pain and the emotional strain of menstruation.
¡Hola hermana! Periodo - 1 mes
Plant-based • Clinically tested Khapregesic®*
Loved by 10,000+ Happy Customers 🧡
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Most people choose Subscribe & Save to feel the full benefits over three cycles.
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Try it with your daughter. If she doesn’t experience meaningful relief, full refund. No fuss.
Available in Pharmacies
Sound familiar?
The Science That Changed Everything
A randomised, double-blind, placebo-controlled clinical study in Australia tested the effectiveness of Hey Sister!’s key ingredient, Khapregesic®.*
136%
improvement in pain*
196%
improvement in mood*
90%
less pain medication used*
300%
better social function*

“Khapregesic® represents a transformative advancement. This is the first time a menstrual treatment has been developed that addresses both the physical and mental challenges faced by millions of women on a monthly basis.”
- Dr Adrian Lopresti (Clinical Research Australia)

Figure 2: Percentage Change in Mean Self-Ratings from Menstrual Period 1 to Menstrual Period 2
Take twice a day to keep the cramps away.
Hey Sister! works with your body to support a calmer, more comfortable cycle. Its dual-action, plant-based formula is designed to ease both period pain and PMS symptoms*, including mood swings, fatigue, and bloating; all with natural, targeted support.
Backed by 12+ years of research and a gold-standard clinical trial, Hey Sister! offers support you can trust, without synthetic hormones or harsh ingredients.
1. Strong Anti-Inflammatory Support
2. High Antioxidant Levels
3. Natural Prebiotics for Gut Health
1. Strong Anti-Inflammatory Support
Many period symptoms start with inflammation, cramps, pain, and discomfort. Hey Sister! includes Khapregesic®, a clinically studied ingredient that supports the body’s natural inflammatory response, helping you feel better, faster, without “numbing” or harsh side effects.
2. High Antioxidant Levels
Oxidative stress can drain your energy, cloud your focus, and affect your mood. Hey Sister! is rich in plant-based antioxidants that support cell health, helping you feel clearer, calmer, and more energised during your cycle.
3. Natural Prebiotics for Gut Health
Gut health is closely linked to hormones and how you feel. Hey Sister! includes prebiotics that support digestion and reduce bloating — so you feel lighter, clearer, and more like yourself.
Many period symptoms start with inflammation, cramps, pain, and discomfort. Hey Sister! includes Khapregesic®, a clinically studied ingredient that supports the body’s natural inflammatory response, helping you feel better, faster, without “numbing” or harsh side effects.
Oxidative stress can drain your energy, cloud your focus, and affect your mood. Hey Sister! is rich in plant-based antioxidants that support cell health, helping you feel clearer, calmer, and more energised during your cycle.
Gut health is closely linked to hormones and how you feel. Hey Sister! includes prebiotics that support digestion and reduce bloating — so you feel lighter, clearer, and more like yourself.
Hear from Our Head of Education
Jade Walker
Director of Education, Hey Sister!
Naturopath (Bachelor of Health Science)

Hear from Our Head of Education
Jade Walker – Degree-qualified Naturopath
Month by Month: What to Expect
Month 1 – Fast Relief
Thanks to its dual-action formula, Hey Sister! can be felt within 15–45 minutes of taking your first dose, as shown in the Australian randomised, placebo-controlled clinical trial on Khapregesic® . Many notice early improvements like reduced cramps, lighter bloating, and less reliance on painkillers in that first cycle.
Month 2 – Building Balance
By the second cycle, the changes usually go beyond cramps. Many women report more stable moods, fewer emotional dips, and steadier energy throughout their cycle. This is where you notice Hey Sister! supporting both the physical symptoms and the PMS mood swings.
Month 3 – Full Benefits
By the third cycle, improvements tend to become more consistent. That’s because menstrual health is tied to folliculogenesis, the process of follicle (egg) development.
Follicles take about 290 days to fully mature. The last 60–90 days are especially critical, when follicles influence cycle hormones means the eggs released today actually began developing three cycles ago
That’s why health professionals recommend committing to at least 3 months — it allows your body’s natural cycle biology to reset and respond.
Try It Risk‑Free NowPowered by Nature. Backed by Science.
Meet the all-star lineup behind Hey Sister! teen, carefully chosen to soothe the body and support the mind.



Khapregesic®
Clinically tested, dual-action hero for period pain and mood balance .
Vitamin C
pH-neutral support for skin health and collagen formation.
Magnesium
Eases cramps by supporting muscle relaxation.
As seen in
Powered by Nature. Backed By Science.
Meet the all-star lineup behind Hey Sister! teen, carefully chosen to soothe the body and support the mind.

Khapregesic®
Clinically studied, dual-action hero for period pain and mood balance*

Vitamin C
pH-neutral support for skin health and collagen formation*

Magnesium
Eases cramps by supporting muscle relaxation*
Frequently Asked Questions
Subscription = Peace of Mind
(and One Less Thing to Worry About)
- Auto-delivery every 28 days or every 3 months - your call
- Always arrive on time, no last-minute pharmacy dashes
- Free shipping on every order
- Save $10 every time (yep, every time)
- Skip, pause or cancel anytime
- VIP support and members-only perks
You've got enough on your plate. Let us handle this one.
Just set it, forget it, and get on with your day.
Important Safety Information
*Results from the clinical trial as reported in Lopresti A. et al. “An examination into the safety and efficacy of Khapregesic® …” See footer for full citation.
Always read the label and follow the directions for use. If symptoms persist or worsen, consult a healthcare professional. Supplements should not replace a balanced diet.
Hey Sister! LIFE is listed on the Australian Register of Therapeutic Goods (AUST L 465712). Made in Australia. Distributed by Bioactive Natural Health Pty Ltd.


















