DOING
EVERYTHING
RIGHT.
BELLY WON'T BUDGE.
CORTISOL LOOP
WORK YOU'VE DONE
ON THE LABEL
It Looks Like Effort Failing. It's A Hormone Loop Canceling It Out.
- The plateau isn't your training plan.
- The belly isn't your macros.
- The stubborn last inch isn't a willpower problem.
Your visceral belly fat makes its own cortisol — and stores up to 4× more of it than fat anywhere else on your body. So every clean meal, every lift, every walk you take is being canceled out by a hormonal loop your training plan can't reach. The fix isn't more effort. It's interrupting the signal that's eating yours.
After Eight Weeks On Regula
The Hormone Loop, Interrupted.
Four clinical actives. Every milligram on the label. Dosed to interrupt the cortisol signal your training plan can't reach.
Shoden® Ashwagandha
Lowers the cortisol that's storing fat
Shoden® is the highest standardized withanolide extract on the market — 35% withanolides, the active compounds doing real cortisol work. At 120mg, this matches the published clinical trial dose that demonstrated significant reductions in circulating cortisol in midlife adults. Not KSM-66. Not Sensoril. Not "ashwagandha extract" hidden inside a proprietary blend.
This is the ingredient that directly addresses the cortisol-fat-storage loop. Lowering chronic cortisol unwinds the 11β-HSD1 amplification happening in your visceral fat — the mechanism that's been canceling out your deficit. The deficit didn't stop working. The hormonal signal was outvoting it.
Magnesium Glycinate
Restores the recovery you've been missing
Magnesium glycinate is the chelated form that binds directly to GABA receptors and restores the inhibitory brake your nervous system needs to actually downshift at night. Glycinate is what clinicians prescribe — oxide has 4% bioavailability, citrate is laxative at therapeutic doses. The form matters as much as the milligrams.
Stacy Sims has said it for years: in perimenopause, recovery becomes the bottleneck, not the workout. If you're not hitting deep sleep, your nervous system never clears the cortisol it built up during the day — and your training only deepens the hole. Magnesium glycinate is the recovery upgrade your lifts have been waiting for.
L-Theanine
Calms the system without sedation
L-theanine produces alpha brain waves — the same calm-but-alert state observed in meditation. Critically, it doesn't sedate, which means it won't dull your 5:30 AM training. It quiets the sympathetic nervous system at night so your body can stop pumping cortisol — and start actually responding to the work you've been putting in.
The chronic-cortisol loop has two doors: how high your spike goes, and how long it stays there. L-theanine works the second door — accelerating the wind-down so your body spends more of the night in the parasympathetic state where deep sleep, muscle recovery, and visceral fat metabolism actually happen.
Magnolia Bark
Closes the night-cortisol storage window
Honokiol and magnolol — the active compounds in magnolia bark — modulate evening cortisol secretion at the source. Validated by modern placebo-controlled trials in midlife women, magnolia bark closes the long nighttime window where elevated cortisol drives the local fat-storage signaling in abdominal fat cells.
This is the closer in the formula. Nighttime is when your body should be repairing what you broke down in training and pulling from fat stores — but elevated cortisol overnight blocks both. Magnolia bark shuts that window so the deficit you're already running can actually pull from where you want it to.
Regula Cortisol Balance Drops
- Interrupts the cortisol loop driving visceral fat storage
- Restores recovery so your training actually pays off
- Every milligram on the label · No auto-ship · Ever
Auto-Ship
Shipping
Refund
When The Work Finally Starts Showing.
If The Belly Doesn't Budge, You Don't Pay.
Take Regula for 90 days alongside the training and eating you're already doing. If your waistband doesn't loosen, your pants don't fit better, and your discipline doesn't finally start showing up in the mirror — let us know and we refund every cent. Empty bottle is fine. The risk is on us, not you.
FAQs.
Because visceral belly fat makes its own cortisol — and your training plan doesn't account for it. Research at NIH and PubMed (PMC2645022, PMC3523536) shows the 11β-HSD1 enzyme in abdominal fat cells reactivates cortisone into local cortisol, and abdominal fat carries up to four times more cortisol receptors than fat anywhere else on your body. So even when your calories, protein, lifts, and sleep are dialed in, a hormonal feedback loop is keeping the belly in fat-storage mode. You're not failing at the diet. The diet has a variable it can't measure.
Yes — and the gap between "labs are fine" and "you still feel broken" is the most documented frustration in perimenopause medicine. A standard panel measures one point in time, usually morning, in a range so wide a perimenopausal woman with significant nighttime cortisol surges still reads "normal." The 11β-HSD1 mechanism — visceral fat producing its own cortisol locally — doesn't appear on bloodwork at all. Mary Claire Haver, Stacy Sims, and Sara Gottfried have all publicly flagged this gap. Your labs being "normal" and your belly not moving are not contradictions. They're the same data point telling you the test isn't measuring the right variable.
Four clinical actives — every milligram on the label, no proprietary blends, dosed to the published trials. Shoden® Ashwagandha (120mg) lowers circulating cortisol at the source. Magnesium glycinate (200mg) restores GABA signaling so your nervous system can actually downshift overnight. L-theanine (200mg) produces alpha-wave calm without sedation. Magnolia bark (100mg) shuts the long nighttime cortisol window via honokiol. Print this list. Cross-check it against your other bottles. We have nothing to hide.
The cortisol signal interrupts within nights — that's what L-theanine and magnesium do fast, sublingually. The visceral fat response is slower because fat cells are slow to remodel. Most women see waistband loosening at weeks 3–5, with measurable visual change in the abdominal area at weeks 6–10 once the cortisol-driven storage signal has been off long enough for the deficit you've already been running to pull from the belly. The training you've been doing didn't stop working. It was being canceled out. Once the signal is off, the work starts compounding again.
Regula is a PM-only formula taken 30 minutes before bed. It improves recovery sleep without sedating you, so your 5:30 AM training session is unaffected. Most women report stronger lifts within 2–3 weeks because deep sleep is when your body actually rebuilds muscle and clears cortisol. Stacy Sims has been clear on this for years: in perimenopause, recovery is the bottleneck, not the workout. We're targeting the bottleneck — which is why your existing program suddenly starts responding.
Your calorie deficit creates the energy gap. Cortisol decides where that gap gets pulled from. When cortisol is chronically elevated overnight — which it is in most perimenopausal women — your body is incentivized to protect visceral fat and pull from elsewhere (lean mass, peripheral fat). That's why you can be in a 200-calorie deficit for nine months and watch the scale move while the belly doesn't. Regula doesn't replace the deficit. It changes which tissue the deficit pulls from. The work you've been doing finally goes to the place you've been trying to send it.
Regula is a plant-based formula made of ingredients with long safety histories. Always run it past your prescribing physician before starting — particularly if you're on SSRIs, sedatives, blood pressure medications, or thyroid medication. Most women on HRT find Regula complementary, not redundant, because cortisol regulation operates on a different pathway than estrogen replacement. Your doctor will recognize every ingredient on the label — because every ingredient is on the label. Hand them the bottle.
No. No auto-ship and we never will. Buy a bottle — that's it. No fine-print subscription trap. No surprise charge 30 days from now. No fight with a chatbot or a "retention specialist" to cancel. If you want another bottle, you order one. The supplement industry has trained you to expect a trap. We refuse to be one.
You get every cent back. 90-day money-back guarantee. Empty bottle is fine. No return label, no questionnaire, no fight. Email us, we refund you. The formulation takes 4–8 weeks to fully interrupt the cortisol signal and the visceral fat response trails behind that — so a 30-day refund window on a 90-day mechanism is a logic gap we won't leave open. The risk is on us. We match the offer to the science, not to the industry shortcut.
Reviews.
All reviews are from verified buyers. Read more about our review policy.
I'd been in a 200-calorie deficit for nine months. Lifting four days a week. Hitting 130g protein. The scale moved 4 lbs in nine months and zero of it came off my midsection. Six weeks on Regula and my favorite jeans buttoned without the deep breath. I didn't change a single thing about my training or my eating. I just stopped getting in my own way at night. Apparently my belly was making its own cortisol the whole time and the deficit had nowhere to pull from. Wild.
Every blood panel was perfect. Thyroid normal, A1c great, lipids enviable. My doctor's literal words: "you're a very healthy 47-year-old." Then why couldn't I lose this stomach? She didn't have an answer. I found a Stacy Sims podcast that explained the 11β-HSD1 mechanism — how perimenopausal women's visceral fat starts making its own cortisol — and I cried in my car. Not because the news was bad. Because I finally understood I wasn't lazy or broken. Three months on Regula and the abdominal weight is genuinely coming off. The thing that was wrong was the thing nobody was testing for.
I bought this for the cortisol-belly thing. What I didn't expect was a 15-lb PR on my deadlift at week four. Turns out when you actually get deep sleep, your nervous system recovers and your lifts go up. I've been training for 17 years. I forgot how good lifting felt when you weren't running on 5 hours of broken sleep. Regula didn't change my program. It made my program work again. The belly is also flatter, which is what I came for. Stronger lifts were the bonus I didn't see coming.
I track everything. Macros. Sleep. Steps. Mood. My Oura is basically my second nervous system. After 6 weeks on Regula my deep sleep average went from 47 minutes a night to 1h 21m. Readiness score climbed from low 70s to mid 80s. Resting heart rate dropped 4 bpm. HRV up 18 points. And yes — the belly. Down 1.5 inches at the navel without changing anything else. I've never had a supplement actually move my biomarkers like this. This goes in the fridge next to creatine.
Same gym schedule. Same eating window. Same 130g of protein. Same 9,000 steps. Same everything I've been doing for 18 months while watching my midsection slowly thicken anyway. Eight weeks on Regula and people at the office are asking if I lost weight. The scale says 6 lbs. The mirror says far more than that — apparently visceral fat is denser than what you lose elsewhere. I want to scream at every doctor who told me to "just be patient." I was patient. The patience was being canceled out by a cortisol loop nobody mentioned.
I've been a runner my whole life. Marathons in my 30s. Half-marathons in my 40s. Then perimenopause hit and my body started ignoring everything I did to it. Same mileage, more body fat. Same lifts, less progress. Same sleep, less rest. I felt like I was screaming into a void of my own physiology. Twelve weeks on Regula and my body is responding to the work again. Not magic. Not effortless. Just — responsive. Like someone unmuted the channel between my training and my results. That's the whole sales pitch as far as I'm concerned.