★★★★★Rated 5.0·OB-GYN & RD formulated·Trusted by 100+ Practitioners
Dr. Ashlee O’Shell, OB-GYN · Cycle Sync Medical Advisor
Your hormone snapshot
Your pattern points to insufficient progesterone.
Your menstrual cycle is a vital sign, and your answers tell a clear story. The pattern I am seeing in your symptoms is one of the most common, and one of the most under-recognized: a luteal phase that is not getting the progesterone support it needs. Below is what that means for you.
— Dr. O’Shell
Your cycle, phase by phase
Follicular phasefirst half · estrogen rises
Low estrogenLooks steady
18%
Luteal phasesecond half · progesterone rises
Poor estrogen clearingLooks steady
42%
Low progesteroneLooks steady
84%
Your cycle reading is loading.
What your pattern means
Insufficient progesterone is what most women experience as PMS
Insufficient progesterone is the pattern behind what most women call PMS, and what some experience as PMDD. Progesterone is the hormone that rises in the second half of the cycle, calms the nervous system, supports sleep, and steadies mood. When it falls short, the week before a period can feel like an entirely different season.
The cortisol-progesterone connection is real. Both are built from the same precursor pool, and when stress is chronically elevated, progesterone is the one that gets short-changed. The supplements that support progesterone production and the nutrients that buffer the nervous system are most effective when timed to the luteal phase.
Your symptoms
During your assessment, you flagged signals that align with this pattern:
PMS that starts a full week before your periodAnxiety that ramps up and will not quitWaking at 3am with your heart racingBreast tenderness before your periodIrritability that feels disproportionate to the moment
88% of women who take this assessment feel agitated, irritable, or weepy in the days before their period.
Rootify hormone assessment · 10,000+ respondents
The solution
This is exactly what Cycle Sync was built for.
Cycle Sync is a two-phase hormone support system designed to match the rise and fall of your cycle, not override it. Phase 1 supports the first half of your cycle, when estrogen is rising. Phase 2 supports the second half, when progesterone takes over and estrogen needs help clearing.
For your pattern, the phase built for you is Phase 2, which we walk through next.
Built for your pattern · Phase 2
How Cycle Sync supports this pattern
Two phases. Two formulations. Built to match the work your body is already doing.
Phase 1:Lays the foundationDays 1 to 14
In the first half of your cycle, your body is preparing for ovulation. Phase 1 brings in the foundational nutrients that support the body’s hormone production pathways from day one, so by the time the second half arrives, your body has the resources it needs to do the heavy work of progesterone production.
Key ingredients for your pattern
Vitamin CVitamin ENACCurcumin
Phase 2:Brings in the progesterone-supporting workBuilt for your patternDays 15 to 28
In the second half of your cycle, progesterone needs to rise. This is the half of the month where the insufficient progesterone pattern is most felt, and Phase 2 is built specifically for it. Chasteberry sits at the center of the formulation as the primary plant ingredient for healthy progesterone support, used by traditional medicine for cycle support for over two thousand years. Magnesium and Vitamin B6 work alongside it as direct cofactors in the body’s natural progesterone production, and Ashwagandha addresses the cortisol axis that draws progesterone down in the first place.
Built around the symptoms women with insufficient progesterone feel most
Mood Balance
Stress & Cortisol Support
Hormone Rhythm Support
Bloating & Cramp Support
What women on the routine are saying
★★★★★
“I was actually able to sleep through the night during my last cycle. Menstrual cramps used to wake me every 3 to 4 hours once my pain meds wore off. Now I only need pain medicine a few times a day instead of around the clock, and I had no cystic acne breakouts.”
★★★★★
“The emotional shifts during certain parts of my cycle used to feel really intense and hard to manage. Since taking Cycle Sync, those have significantly decreased and my cycle feels much more balanced. I feel more emotionally stable throughout the month.”
★★★★★
“Less bloating, more consistent energy. Still some mood swings around my period but nowhere near as bad. My period also started on day 29 instead of the day 34 to 36 it usually does.”
★★★★★
“Less hormonal acne, a less painful period, and overall just felt better. I love the way this helps naturally support your body.”
★★★★★
“I noticed changes in the first month. I used to get cystic acne on my cheeks and jawline around ovulation and leading up to menstruation. That has significantly decreased.”
Swipe to read more →
Designed for your pattern
Cycle Sync
A two-phase hormone support system, formulated by an OB-GYN and a Registered Dietitian, designed to match your body across the full arc of your cycle.
Your offer
Built for the way your body actually works
Start with one cycle of phase-aligned support. Cycle Sync follows your body’s natural two-phase rhythm, with formulations designed to support healthy hormone production across the month.
30-Day SupplyRetail price
$49.99
Subscriber savings10% off
−$5.00
Your quiz code QUIZ15Extra $15 off first month
−$15.00
Your first month
$29.99
You save $20.00 on your first month · 40% off retail
$1 a day. A fraction of what most women spend on supplements that miss the rhythm of their cycle. Free US shipping.
Pause or cancel your subscription anytime from your account.
Phase 1, Days 1 to 14
Take 3 capsules of Phase 1 in the morning, starting on the first day of your period.
Phase 2, Days 15 to 28
Switch to 4 capsules of Phase 2 in the morning, after ovulation through the start of your next period.
What to expect
What happens in your first 90 days
Tap a phase to see what women with this pattern often see.
Weeks 1–3Weeks 4–7Weeks 8–12
Weeks 1–3
The first signals
This is for you if
You are a woman over 18 with a menstrual cycle
You experience cyclical symptoms in the second half of your month
You want non-hormonal, non-pharmaceutical support that respects your cycle
Hold off if you
Are on hormonal birth control
Are pregnant or breastfeeding
Are under 18
No Synthetic Hormones
Free US Shipping
Made in a cGMP Facility
Phase-Aligned Support
OB-GYN & RD Formulated
Trusted by 100+ Practitioners
A few common questions
When should I expect to notice a difference?
Most women notice early signals in their first cycle, with the most meaningful shifts arriving between cycles two and three. Cycle Sync supports your body’s natural rhythm, which is why one cycle is your starting point. The closer you can track your cycle alongside it, the better the results.
When do I switch from Phase 1 to Phase 2?
On the day of ovulation. If you do not track ovulation yet, take Phase 1 for the first 15 days of your cycle and Phase 2 for the remaining days. Your first order includes a cycle-tracking guide to help you align the switch more precisely over time.
What if my cycle is shorter or longer than 28 days?
Cycle Sync is built for cycles of any length, as long as you have one. Knowing your ovulation day lets you align the phase switch. If your cycle is longer than 30 days, there may be a few days between bottles. If your cycle is shorter, you may switch a few days earlier. The two-phase structure adapts to your body, not the other way around.
Why two bottles instead of one?
Because your body works in two phases. Phase 1 brings in foundational nutrients to support the build of the first half of your cycle. Phase 2 brings in Chasteberry, the plant ingredient most associated with healthy progesterone support, alongside Magnesium, B6, and Ashwagandha to do the heavy work of the luteal phase. One pill cannot do both jobs well.
Can I take this with hormonal birth control?
Hormonal birth control delivers synthetic hormones that suppress ovulation. Cycle Sync is built to support a natural cycle, so it is not recommended for women currently on hormonal contraceptives. If you came off birth control recently and your cycle is returning, Cycle Sync is built for that window. Reach out at hello@rootifysupplements.com if you want guidance.
Is it safe during pregnancy or breastfeeding?
Cycle Sync is not recommended during pregnancy or breastfeeding. A prenatal is what your body needs during those windows. Cycle Sync is safe to take up until conception.
How does the subscription work?
Your 30-day routine ships every 30 days so you always have what you need for the next cycle. You can pause, skip, change the cadence, or cancel from your account at any time. No phone calls, no hoops.
How is Cycle Sync different from other PMS supplements?
Most PMS supplements are a single formula taken every day, with no respect for the fact that the body is doing different work in the first and second halves of the cycle. Cycle Sync is the only two-phase system we know of, formulated by an OB-GYN and Registered Dietitian, with every ingredient and dose disclosed.
Ready to support your body the way it actually works?
Your extra $15 off your first month is waiting. The next cycle starts whether you start with it or not.
These statements have not been evaluated by the Food and Drug Administration. Cycle Sync is not intended to diagnose, treat, cure, or prevent any disease. Cycle Sync is not for women on hormonal birth control, pregnant or breastfeeding women, or women under 18. Assessment results are for informational purposes only and do not constitute medical advice.
