Two products. One system, built for your cycle.
Non-hormonal, over-the-counter period care — formulated by an OB/GYN, started before the pain begins. Pick the one that matches your symptoms, or stack them as a full-cycle routine.
Most popularControl period pain, every single cycle.
The flagship. FDA-approved naproxen sodium, 220mg, in individually sealed packets.
Naproxen sodium 220mg (NSAID) — clinically-proven, hormone-free, and built for the days leading into your period. Take as directed for moderate to severe period pain.
- FDA-approved NSAID
- 11 packets, pre-measured
- Hormone-free, non-prescription
- Take as needed for pain

Support healthy hormones and cycle regularity.
Inositol, magnesium, chasteberry, folic acid, and iron — for cycle regularity, mood, and energy.
Bye Irregularity is OB/GYN-formulated with the ingredients used in the largest body of research on cycle regularity. May help with variation in cycle length, migraines, and mood symptoms.
- Inositol, magnesium, chasteberry
- Iron, folic acid, Vitamin C
- 30 packets, once daily
- Hormone-free, safe for trying
Track, prepare, protect, restore.
A simple, repeatable routine timed to your cycle — not to the pain. Each product has its place; together, they cover the whole month.
