Selyse
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Science-backed somatic wellness

Your luteal phase is not
a personality flaw.
It is a cortisol surge.

And there is a way through.

Take the free 2-minute quiz to discover your surge type — then get your free personalised luteal-phase guide, built for exactly how your nervous system reacts.

100% Free — No Payment To StartTake The Free Quiz

Find your surge type  →  get your free guide  →  then explore your personalised Survival Kit.

The Science

What happens during your luteal phase

The luteal phase is days 15–28 of the menstrual cycle — after ovulation, before your period.

Progesterone drops. Cortisol spikes. The amygdala activates. Your nervous system enters threat mode, causing anxiety, overwhelm and tension.

This is not a character flaw. It is biology — and it can be regulated.

Abstract neural pathway visualization — calming nervous system

14

days your system needs you most

1 in 3

women report severe luteal symptoms

100%

science-backed, somatic, drug-free

Dissolve your inner surge.

Real Experiences

Stories from the luteal phase

The two weeks before a period can feel like becoming a different person. These are the kinds of experiences women describe — and what changes once they understand the science.

The Rage She Could Not Explain
Every month, around day 20, I would become someone I didn't recognise. Snapping at my children, crying in the car on the way to work, convinced my relationship was falling apart. It took me years to realise it was always the same week. Once I understood it was my luteal phase — that my nervous system was literally in threat mode — everything shifted. I stopped blaming myself. That alone changed everything.

Sara, 34, teacher

The Exhaustion Nobody Believed
I would hit a wall every single month and nobody around me understood why. My GP told me it was stress. My partner thought I was being dramatic. But I knew something was happening in my body. Learning about the cortisol surge in the luteal phase was the first time I felt like someone finally gave my experience a name. I am not dramatic. I am dysregulated. There is a difference.

Priya, 29, nurse

The Anxiety That Came From Nowhere
The anxiety would arrive like a wave — no trigger, no warning. Just a heavy, dreadful feeling that something was wrong. I started tracking my cycle and realised it happened in the exact same window every month. Days 18 to 26. Without fail. Understanding the science behind it did not make the symptoms disappear, but it made them bearable. I finally stopped being afraid of myself.

Amina, 31, accountant

The Woman Who Thought She Was Falling Apart
I genuinely thought I was developing anxiety disorder. I was googling therapists, convinced something was seriously wrong with my mental health. Then a friend mentioned the luteal phase and the cortisol connection. I cried reading about it — not because I was sad, but because I was relieved. I was not falling apart. My body was going through something real, something biological. I just needed the right tools.

Leila, 37, project manager

The Mood Swings That Affected Everything
My mood swings were affecting my work, my friendships, my confidence. I would spend two weeks feeling like myself and two weeks feeling like a stranger in my own body. When I discovered somatic regulation — actually physically discharging that nervous system energy — it was the first approach that made any real sense to me. My luteal phase still comes every month. But now I have something to meet it with.

Fatima, 26, postgraduate student

Swipe to read more →

These stories represent experiences shared by many women and are illustrative of the luteal phase journey Selyse is designed to support.

For You

Who this is for

Selyse is for any cycling woman — aged 13 to perimenopause — who has ever felt like a different person in the two weeks before her period.

Whether you rage, cry, withdraw, or spiral into anxiety, Selyse meets you where your nervous system is.

"You are not broken. Your biology is just doing what it was designed to do. You need the right tools."

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