★★★★★
“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.”
Dr. Ashlee O’Shell, OB-GYN · Cycle Sync Medical Advisor
Your hormone snapshot
Your pattern points to insufficient estrogen.
Your menstrual cycle is a vital sign, and your answers tell a clear story. The pattern I am seeing in your symptoms is often mistaken for burnout, depression, or sleep trouble. The pattern is real, and it is specific: your body is in a low-estrogen window. Below is what that means for you.
— Dr. O’Shell
Your cycle, phase by phase
Follicular phasefirst half · estrogen rises
Low estrogenLooks steady
84%
Luteal phasesecond half · progesterone rises
Poor estrogen clearingLooks steady
20%
Low progesteroneLooks steady
38%
Your cycle reading is loading.
What your pattern means
Insufficient estrogen is the most often misread of the three patterns
Insufficient estrogen is the most often misread of the three patterns. It looks like burnout. It looks like depression. It looks like a sleep disorder. But the signature signals (shorter and lighter periods, sleep that breaks in the middle of the night, mood that runs flat, libido that has dropped without obvious cause) point to something specific.
This pattern is common in women coming off the pill after years of use, in women under chronic stress, and in women with persistently low body fat. The nutrients that support estrogen production and the cofactors the body needs to rebuild after a depleted period work best in the first half of the cycle, when estrogen is naturally rising.
Your symptoms
During your assessment, you flagged signals that align with this pattern:
Shorter or lighter periods than you used to have
Sleep that breaks in the middle of the night
Mood that runs flat instead of varied
Energy and brain fog that have not lifted
A drop in libido or desire
73% of women who take this assessment struggle with low mood or anxiety.
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 1, which we walk through next.
Built for your pattern · Phase 1
How Cycle Sync supports this pattern
Two phases. Two formulations. Built to match the work your body is already doing.
Phase 1:
Brings in the estrogen-supporting work
Built for your pattern
Days 1 to 14
In the first half of your cycle, estrogen is supposed to rise. This is the half of the month where the insufficient estrogen pattern shows up most, and Phase 1 is built specifically for it. Boron and Zinc support the body’s natural estrogen production. Vitamin E and Vitamin C provide the antioxidant support and adrenal cofactors that estrogen production depends on, especially when the body is rebuilding after a depleted period.
Key ingredients for your pattern
Boron
Zinc
Vitamin E
Vitamin C
Phase 2:
Steadies the second half
Days 15 to 28
In the second half of your cycle, the body’s focus shifts to progesterone. Phase 2 brings in Chasteberry and Magnesium Glycinate to support the luteal phase, with NAC and Ashwagandha addressing the stress and adrenal axis that often sits underneath a low-estrogen pattern in the first place.
Key ingredients for your pattern
Magnesium Glycinate
Chasteberry
NAC
Ashwagandha
What Cycle Sync supports for this pattern
Built around the symptoms women with insufficient estrogen feel most
Sustained Energy
Mood Balance
Hormone
Rhythm Support
Rhythm Support
Stress &
Cortisol Support
Cortisol Support
What women on the routine are saying
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 and recovery 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 1–3
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
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 Boron, Zinc, and Vitamin E, the nutrients most directly tied to healthy estrogen production, to support the rising-estrogen first half of your cycle. Phase 2 carries the rhythm forward through the luteal half with Magnesium, Chasteberry, and Ashwagandha. 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.