PUBLISHED 2025
SOURCES CITED BELOW
4.8/5 Trustpilot
See the routine →

POSTPARTUM RECOVERY · HIP & SI-JOINT PAIN · ADVERTORIAL

"It's Just Relaxin. It'll Settle." The Science Has Actually Moved On.

If your postpartum hip or SI-joint pain didn’t settle when your hormones did, you weren’t failing to recover. The explanation you were given was incomplete. Here’s what the research says now.

See the ten-minute routine →

Rated Excellent 4.6/5 on Trustpilot

By the LimbJoint Editorial Team · June 24, 2026  ·  Illustrative account based on common LimbJoint customer experiences.
Mother more than a year postpartum holding her toddler while standing at a kitchen counter and experiencing lingering hip pain during daily activities
"I wasn't broken. The explanation I was given was
just incomplete."
POSTPARTUM HIP & SI-JOINT PAIN

The updated science

Muscle support, not hormones
Ten-minute routine
HER STORY

They all said the same thing. My OB. The physio I saw twice. My mum. The blog I found at 2am with a baby on my chest and my hip throbbing underneath me. "It's the relaxin. Your ligaments loosened for the birth. Give it time. It'll settle."

I gave it time. Six months. Then a year. Then eighteen months. The hormones normalised. The pain didn't. The crib lift still catches. The car seat still stings. The shift still breaks me by hour six.

And every time I brought it up, I got the same answer: just give it more time.

I started to think my body was just broken. That this was my new normal. That everyone else bounced back and I was the one who couldn't.

I wasn’t broken. The explanation I was given was just incomplete.

Keep reading — the updated science is the part nobody mentioned. Or see the ten-minute routine now if you'd prefer to skip ahead.

See how the ten-minute routine works →

Here’s what the research actually says now — and it’s different from what you were told.

For years, the standard explanation was simple: pregnancy releases relaxin, relaxin loosens pelvic ligaments, the SI joint gets unstable, and everything settles once the hormones normalise. It sounded reasonable. And everyone — including many doctors — repeated it.

But newer research — systematic reviews, recent trials — has found more evidence against relaxin as the primary cause than for it. The science is shifting. What the research now points to is something different: it’s less about hormones and more about how the muscles control and transfer load across your pelvis.

WHAT YOU WERE TOLD

"It's the relaxin loosening your ligaments. Give it time — once your hormones settle, everything settles."

WHAT RESEARCH NOW POINTS TO

Systematic review: the level of evidence for the association between PGP and relaxin levels was found to be low.

WHAT YOU WERE TOLD

"Just rest it. Give your body time to recover."

WHAT RESEARCH NOW POINTS TO

The problem isn't hormones that needed time. It's muscles that lost the ability to muscles that lost the ability to Time alonedoesn't retrain how muscles fire.

WHAT YOU WERE TOLD

"Everyone goes through this postpartum. It's normal."

WHAT RESEARCH NOW POINTS TO

Pelvic support that addresses motor control and load transfer significantly improvedpain and disability in postpartum women.(BMC, 2025 RCT)

That changes everything. Because if the problem isn't hormones that needed time to settle — if it's muscles that lost the ability to stabilise and transfer load — then waiting was never going to fix it. Time alone doesn't retrain how muscles fire. And "just rest" doesn't rebuild the support your pelvis is missing.

VERIFIED SOURCES

Source 1

Aldabe D, et al. "Pregnancy-related pelvic girdle pain and its relationship with relaxin levels: a systematic review." European Spine Journal. 2012;21(9):1769– 1776.

Level of evidence for relaxin–PGP association found to be low.

Source 2

Jafarian FS, et al. "Comparative efficacy of lumbar and pelvic support on pain, disability, and motor control in women with postpartum PGP: a three-armed RCT." BMC Musculoskeletal Disorders. 2025;26(1):100.

Pelvic support significantly improved pain, disability and motor control.

This is why “just wait” didn’t work. And why it never was going to.

If the muscles around your pelvis lost the ability to stabilise and share load — and then you spend every day lifting a baby, hauling a toddler onto your hip, standing for a 12-hour shift, climbing stairs with a laundry basket — you’re loading a pelvis that doesn’t have the support it needs. Every lift, every shift, every stair reloads the same unsupported joint. The muscles guard to compensate. The guarding chokes circulation. Inflammation gets trapped. And you know the rest — the Lock-Up Loop.

Rest pauses the loading. It doesn't rebuild the muscle support. That's why you can rest for a weekend and feel slightly better — then Monday comes, the baby comes, the shift comes, and the pain is right back where it was.

Mother carrying her toddler on one hip while experiencing postpartum hip imbalance and pain from repeatedly favoring one side during daily activities

There’s one more thing the updated science explains — and it’s the part that scared me the most.


You can feel yourself getting lopsided. Always the good hip for carrying her. Always bracing one side. The muscles on the painful side start to under-activate — they’re guarding, so they stop doing their real job. The other side overcompensates to pick up the slack. Over months, real onesided weakness develops. You’re not imagining the imbalance. It’s a documented pattern.


And here’s the thing: rest doesn’t reverse it. Resting a muscle that’s already under-activating makes it under-activate more. What it needs is gentle support — circulation restored, guarding eased, the muscle invited to fire again. Not more rest. Not more waiting.

Your body isn't broken. The advice was incomplete. And you deserve the update.

If the problem is muscle support and load transfer — then what helps isn't waiting.

It’s giving the pelvis the support the muscles can’t provide yet, while gently helping them reactivate. Specifically:

1

Compression

2025 RCT · BMC MUSCULOSKELETAL DISORDERS

To externally support the SI joint and help with load transfer. A 2025 trial found pelvic support improved pain and motor control in postpartum women — addressing the load-transfer gap directly.

2

Deep heat

To restore circulation to the guarding muscles so they can begin to release. The muscle can't reactivate while it's guarding. Heat is how you signal it to let go.

3

Vibration

Gentle activation that invites the under-firing muscles back on, without forcing a painful contraction. Not percussive — controlled, deep, inviting.

4
660nm red light

To support the body's response to inflammation trapped in the joint. The wavelength with published evidence on soft-tissue inflammation response.

All four. On the same spot. In the ten minutes you actually have.

All four. Ten minutes. After she goes down.

The updated approach — built for the life you actually have.
See how the ten-minute routine works →
Woman sleeping comfortably in bed wearing the LimbJoint 4-in-1 Hip Therapy Belt with red light therapy and vibration massage for hip pain and sciatica relief
THE LIMBJOINT 4-IN-1 HIP THERAPY BELT

All four, ten minutes, after she goes down.

Deep heat + gentle compression + vibration + 660nm red light. Simultaneously, on the SI joint and hip. The compression supports the load transfer your muscles can't handle yet. The heat and vibration help them release and reactivate. The red light supports the inflammation response.

Ten minutes. Wireless. Quiet. Fits the only break you get.

✓ Wireless — no cord

✓ Quiet — won't wake baby
✓ 10–15 min session
✓ Fits under scrubs

See how the ten-minute routine works →

100% satisfaction · 30-day money-back
WHAT'S IN THE BELT
HEAT
Gentle
Adjustable
RED LIGHT
660nm
105 LEDs
SESSION
10–15m
Wireless
VIBRATION
Dual
6,000 RPM
STRAP
51"
Adjustable
BATTERY
Long-life
Rechargeable
SECURE CHECKOUT

SAFETY — ANSWERED HONESTLY, UP FRONT

The safety question — answered honestly, up front.

The belt sits on your hip and upper glute, not on your abdomen. Heat, vibration and red light on the hip are generally considered safe for everyday use. But if you're currently pregnant or in the early weeks postpartum, please check with your provider before starting.

If your pain is severe, sudden, or getting worse, please see a doctor. If you're pregnant or immediately postpartum, check with your provider before use.

We tell you that here, not in the fine print, because you've had enough of being given incomplete information.

What to expect.

Day one

FIRST SESSION

Warmth and after-session ease — the guarding releases, the joint quiets.
About a week
BUILDING
The crib lift starts to change — less brace, less breath-holding. The one-sided feeling begins to even.

Two weeks

THE SHIFT
A full shift without counting the hours.

Honest frame: it's a routine. Ten minutes a day. The consistency retrains the system — it's not a one-time fix, just like the muscle- support problem it addresses isn't a one-time issue.

Real mom customers.

★★★★★

"The 'crib lift' was my daily nightmare. That sharp catch in my SI joint every morning set the tone for the whole day. Two weeks with the LimbJoint belt and I'm lifting her without that bracing fear. It's life- changing."

Emily H.
Austin, TX
★★★★★

"I work 10-hour retail shifts and by hour four, my hip used to be screaming. I started using this routine after work, and the difference in my mobility the next day is incredible. I'm not limping to my car anymore."

Maya S.
Seattle, WA
★★★★★

"I was told to 'just wait' for three years. I thought I was just broken. This is the first thing that actually addressed the muscle guarding. I finally feel like I'm getting my body back."

Sarah L.
Chicago, IL
★★★★★

"I was worried the vibration would wake the baby since she sleeps right next to me, but it's whisper-quiet. It's become my favorite ten minutes of the day—just me, the heat, and actual relief."

Elena R.
Denver, CO
★★★★★

"I always felt lopsided, like I was only living on my 'good' side. After a month of consistent use, that heavy, one-sided feeling is finally evening out. I feel balanced for the first time since pregnancy."

Julie W.
Charlotte, NC
★★★★★

"The deep heat is unlike any heating pad I've used—it actually reaches the ache. Combined with the red light, it's the only thing that calms the inflammation after a long day of chasing a toddler."

Rachel K.
Portland, OR

4.6

EXCELLENT
Rated on
Trustpilot
5
72%
4
18%
3
6%
2
2%
1
2%

$74.99 Once. No subscription.

ONCE · NO SUBSCRIPTION · NO REFILLS

Less than two physio sessions you couldn't keep. 100% satisfaction, 30-day money-back guarantee. Use it every night for 30 days. If the crib lift still hurts, if the shift still breaks you, send it back. Full refund, prepaid label, one email.

Try the LimbJoint belt risk-free →
100% satisfaction · 30-day money-back · no subscription
SECURE
A dark blue circular seal with a ribbon that reads '30-Day Money Back Guarantee'.

100% satisfaction, 30-day money-back guarantee.

Use it every night for 30 days. If the crib lift still hurts, if the shift still breaks you, send it back. Full refund, prepaid label, one email.

The choice.

You can keep waiting. For the hormones that already normalised. For the settling that the science now says wasn't coming. For someone to finally explain why nothing worked — while you brace through another crib lift and another shift and another bedtime where your patience ran out three hours ago.

Or you can try the updated approach. Support the muscles. Restore the circulation. Ease the guarding. Ten minutes, after she goes down. A clean guarantee that if it doesn't help, you're out nothing. The only risk is finding out whether the pain was addressable this whole time — and you just hadn't been given the right science.

Try the LimbJoint belt risk-free →

100% satisfaction · 30-day money-back · no subscription

P.S.

If you're reading this a year or more postpartum, still in pain, still being told to wait — you're not behind. You're not the broken one. About 1 in 4 moms have this, and most never say a word. The silence is the problem, not you.

P.P.S.

$74.99. Once. 100% satisfaction, 30-day money-back, prepaid label.

P.P.P.S.

If your pain is severe, sudden, or getting worse, please see a doctor. If you're pregnant or immediately postpartum, check with your provider before use.

LimbJoint

© 2026 LimbJoint. All rights reserved.