Trusted by over 5,000 happy women

One Box. Four Phases. Complete Cycle Support.

Hormonal balance

28-day cycle

$79.00

28 sachets designed to match your body’s natural rhythm — for hormonal balance, cycle comfort, and steady energy all month long.

Backed by science

Formulated  in the EU

30-day Guarantee

Jessica L.

Verified customer

October 4, 2025

"My cramps are gone, my energy’s back — I finally feel in sync."

What' In The Box?

A 28-day supply divided into 4 phases, each with precise nutrition for your body’s needs:

Menstrual Phase

6 sachets, 4 capsules each

Replenish iron & minerals, ease fatigue.

QUICK SHOP

Follicular Phase

5 sachets, 2 capsules each

Boost energy, support estrogen production.

QUICK SHOP

Ovulation Phase

5 sachets, 1 capsule each

Balance hormones, aid liver detox.

QUICK SHOP

Luteal Phase

12 sachets, 5 capsules each

Calm PMS symptoms, support mood balance.

QUICK SHOP

Description

InSync is a 28-day nutritional system that supports your body through every phase of your menstrual cycle.
Each daily sachet delivers targeted nutrients that help maintain hormonal balance, reduce PMS symptoms, and support energy, mood, and fertility.

 

Perfect for:

Women who want to support hormonal balance

Women with irregular cycles or painful menstruation

Women planning pregnancy

Women looking for a complete supplementation solution

How To Use

Take one sachet per day with water, starting in the phase you’re currently in.


If your cycle is longer than 28 days, simply add extra sachets from the corresponding phase.

 

Tip: Track your cycle using an app like Flo or Lively to stay perfectly in sync.

For girls by girls

Made in the Czech Republic

Clinically tested ingredients

Developed by nutrition experts

A New Way to Support Your Cycle

Most supplements treat every day the same — but your hormones don’t.


InSync supports your body through each of the four phases with precise nutrients designed for what your body actually needs that day.

See How It Works

GMP standards

Made in the EU

certified chemist formulated

Third-party tested

100% recyclable packaging

Designed for Women Who Want to Feel In Sync

Women with PMS, irregular, or painful periods

Anyone ready for a more natural approach to cycle care

Women preparing for pregnancy or IVF

Women experiencing fatigue, mood swings, or hormonal imbalance

Terka – The Founder

"I struggled with PCOS and side effects from birth control. Cycle syncing changed my life — so I built InSync to help other women too."

Your Cycle Has Four Phases — 
InSync Supports You Through Them All

The Science Behind Every Phase

Your body changes every week — and InSync changes with you.


Each phase contains clinically informed nutrients that match your body’s natural rhythm for balance, energy, and calm.

Menstrual Phase

4 capsules per sachet

Magnesium, Iron, Quercetin, Curcumin, Vitamin C, Zinc, B-complex

💡 Replenishes minerals, eases cramps, and restores strength.

Try Menstrual Phase

Ovulation Phase

1 capsules per sachet

DIM, Silymarin, Curcumin, Betaine, Ginger, Vitamin D3

💡 Helps your body process hormones naturally and maintain clarity.

Try Ovulation Phase

Follicular Phase

2 capsules per sachet

Omega-3 (EPA + DHA), CoQ10, Flaxseed, Cardamom, Fennel

💡 Boosts energy, supports estrogen, and enhances focus.

Try Follicular Phase

Luteal Phase

5 capsules per sachet

Ashwagandha • Lemon Balm • L-Tryptophan • Magnesium • Vitamin D3 + K2 • CoQ10

💡 Reduces PMS, supports mood, and prepares your body for a smooth new cycle.

Try Luteal Phase

Generic Multivitamins

“Hormone Balance” Gummies

Designed for Women’s 28-Day Cycle

Phase-Specific Nutrition

Backed by Science

Natural & Gentle

Recyclable Packaging

Built on Biology, Not Guesswork

Generic vitamins treat every day the same. InSync’s phase-based system adapts to your changing hormones — delivering targeted nutrition when your body needs it most.

Try InSync Today

Everything You Need to Know Before You Start

Do I need to add anything else to InSync?

We have put together Insync with my cycle so that your body does not lack anything. It is a comprehensive nutrition for women. It contains minerals and vitamins, including Omega 3, Coenzyme Q10. The only thing you will not find in the bags are live probiotics. We recommend supplementing these with fermented foods or, for example, kombucha.

Is InSync with my Cycle suitable as preparation for an IVF cycle?

YES! Hormonal balance is one of the main steps to preparing the body for IVF.

Can I take InSync while breastfeeding?

You can! All recipes are designed to be suitable for almost everyone and not put too much strain on the organs.

Help! My cycle is longer than 28 days!

We feel you! The box is designed for a 28-day cycle, but you can add any number of sachets to your basket to stay in sync!

How do I know when I am in which phase?

We use apps to track our cycles! Everyone's preferences are different, but we can recommend Lively or Flo. If you're still not sure, slide into our DMs! :)

At what stage is it best to start with InSync?

Anytime! If you're insync with your cycle, you can start with the sachet of the phase you're currently in. If you don't want to deal with anything, start with the menstrual phase as it's in the box.

Can I take InSync even if I'm not menstruating?

Sure! Whether you're not bleeding due to stress, jet lag, breastfeeding, or hormonal contraception, you can still use InSync. Your body goes through all the phases, even if you don't notice it.

So many bags! Are they even recyclable?

YES! The quality of our product is our top priority, and since there is no compostable option on the market that can preserve the quality of the capsules and protect them from moisture and oxidation, we preferred 100% safe all-plastic bags that are fully recyclable.