CYCLE-PHASE SUPPLEMENTATION

Your body has
four seasons
every month.

Day 3 energy looks nothing like Day 21. Follicular clarity isn't the same as luteal wind-down. Your ritual rotates with your cycle, not against it.

39 clinical-form ingredients across 33 profiles — built for every stage of a woman's cycle, from everyday optimization to specific hormonal needs.

Build my profile — freeSee how it works ↓

Free to start · from $49/mo with delivery · NSF tested · 100% vegan

Rest. Restore. Release.

WHAT MEMBERS SAY

“I don't have a diagnosed condition — I just wanted to feel less like a different person every week. The phase-based rituals actually made that make sense.”

E
Emma R., 27
Regular cycle · Boston
In Flow

“Being told I'm "The Shift" felt more accurate than anything my doctor had said in two years of "your labs are fine."”

M
Meredith L., 46
Perimenopause · Austin
The Shift

“My RE appreciated that I had a conservative supplement profile — nothing that could interfere, everything evidence-backed. Selene removed what shouldn't be there.”

J
Jade W., 33
IVF cycle 2 · Chicago
The Protocol

“"More Than Cramps." That's all I needed to read.”

P
Priya T., 31
Stage II endometriosis · London
More Than Cramps

THE DIFFERENCE

Day 3 looks nothing
like Day 14.

DAY 3 — MENSTRUAL

Magnesium glycinate300mg
Omega-3 (algae DHA)1g
Iron bisglycinate18mg
Ginger extract500mg

DAY 14 — OVULATORY

CoQ10 (ubiquinol)200mg
Maca root1.5g
Zinc bisglycinate15mg
B-Complex (methyl)1 cap

Both rituals from the same subscription. The ritual shifts with your cycle automatically.

33 HORMONAL PROFILES

Detected, not assumed.

Every woman's cycle is different. Every ritual reflects that — whether you're optimizing a healthy rhythm or navigating something more complex.

✨
In Flow
Optimized baseline
⚡
Out of Sync
PCOS
💫
The Quiet Pattern
Lean PCOS
🔴
More Than Cramps
Endometriosis
🌩️
The Dark Window
PMDD
🌊
The Heavy Phase
Estrogen dominance
🌙
The Crash Before
Low progesterone
🌅
The Shift
Perimenopause
🌠
The New Chapter
Post-menopause
🌻
The Supported Chapter
Post-menopause + HRT
🦋
The Hidden Weight
Thyroid
🧬
The Immune Pattern
Hashimoto's
🌱
Building Toward
Trying to conceive
❄️
The Vault
Egg freezing
🔬
The Protocol
IVF
🌷
The Fourth Trimester
Postpartum
🔄
Starting Fresh
Post-pill
💧
Running on Empty
Low estrogen
💜
The Monthly Flood
Fibroids
🌿
The Paused Cycle
Stress / HA
🍃
The Underfueled Cycle
HA + restriction
🌸
Just Beginning
Teen
🏋️
The Training Block
Athlete
❤️
Heart First
Cardiovascular health
💡
The Wired Mind
ADHD / attention
🫙
The Second Axis
Gut / estrobolome
🕊️
The High Wire
Anxiety / stress
🌫️
The Low Light
Depression
〰️
The Wave
Bipolar
🔁
The Loop
OCD
🔵
The Immune Journey
Multiple sclerosis
🎗️
The After
Cancer survivorship
✦
Custom Protocol
Personalized consult

CONDITION DEEP DIVES

Reproductive
Mental health
Metabolic & systemic

QUALITY

Every ingredient.
Every batch.

NSF batch tested
Heavy metals, contaminants, label accuracy — verified on every shipment. Certificate of analysis available on request.
100% vegan
Lichen D3. Algae DHA. HPMC capsules. No animal derivatives, at any tier.
Clinical forms only
5-MTHF not folic acid. Magnesium glycinate not oxide. KSM-66. BCM-95 curcumin. If we chose a form, the dose-level evidence is there.
No fillers
No titanium dioxide. No magnesium stearate. No artificial colorants. What you need. Nothing else.

PRICING

Free to know.
Delivered when ready.

Build your full hormonal profile and preview your ritual for free. Add delivery when you're ready. No card required to start.

PROFILEalways free
— Build your hormonal profile— AI ritual analysis & sourcing guide— Cycle & symptom tracking— All 33 profiles

Your profile, your analysis, your ritual preview — no card, ever.

$0
forever
OR GET IT DELIVERED
ESSENTIAL
$49
/mo
— 4 capsules/day
— Phase base protocol
— NSF tested · vegan
FULL PROTOCOL
$79
/mo
— 8 capsules + 1 powder
— All hormonal profile add-ons
— Wearable signal integration
Most popular
CLINICALcoming 2026
$149
/mo
— Full protocol, unlimited
— Lab integration & FHIR export
— Provider sharing
— Fertility profiles: IVF, egg freezing
NSF batch-tested · every shipment100% vegan · clinical formsAnnual plan: 2 months freeCancel or pause anytime
Start free — no card requiredHave a promo code?

FOUNDING MEMBERS

500 spots. Price locked
forever.

Selene is in early access. The first 500 members lock in at the founding rate and keep it permanently — even as we add the Clinical tier and new features.

Essential: $39/mo $49
Full Protocol: $69/mo $79
— Price locked forever — never increases— Priority access to Clinical fertility tier when it launches— Founding member badge in your profile— Direct input on the product roadmap

No spam. Your email isn't shared with anyone. Unsubscribe anytime.

THE APP

On your phone,
off your browser.

Selene runs as a native-feeling app on iOS and Android — standalone, no browser chrome, with daily ritual reminders. Free to install.

🍎iPhone & iPad

Open selene.stepsventures.com in Safari on your iPhone, then:

Share ↑ → “Add to Home Screen” → Add

🤖Android

Open selene.stepsventures.com in Chrome on Android. The install banner appears automatically.

Or: browser menu → “Add to Home screen”

— Standalone · no browser chrome— Offline access to your ritual— Daily supplement reminders— Free to install

PRIVACY

Your cycle data
stays on your device.

Period dates, cycle length, hormonal profile — none of it is transmitted to our servers until you choose to subscribe. We built it this way intentionally.

Your cycle data stays on your device
Period dates, cycle length, hormonal profile — stored only in your browser's local storage until you subscribe. We have no access to it.
Health data is never sold or shared
We will never sell, license, or share your cycle data or hormonal profile with insurers, employers, pharmaceutical companies, or data brokers.
Standard analytics, no health events
We use tools like Google Analytics and Meta to understand how people find us and improve our marketing. Your cycle data is never passed to these tools.
You own your profile
Tap "Reset profile" to delete everything locally. Email us to delete your account server-side. No lock-in.
Your cycle data is never shared with advertisersWe use standard analytics to improve the productEncrypted in transit (TLS 1.3)SOC 2 via Supabase infrastructureFull privacy policy →

Your cycle isn't a problem to manage.
It's data to work with.

Two minutes. Free. Nothing stored until you choose.

Begin →

THE COMPANION APP

Looking for the men's version? Helian is circadian hormone optimization — an AM/PM stack built around how testosterone actually moves through the day.

Helian →