the hot water bottle you can wear.

Gentle, steady warmth for up to 8 hours that goes wherever your day does.

start with the try-set

what it is

meet the patch.

A self-warming patch that gives gentle, steady warmth of around 41°, for up to 8 hours. Warms on its own the moment it meets the air, then stays with you, low on your tummy, your back, your shoulders or neck.

Inside: iron powder, activated carbon, salt and water. Naturally derived, non-medicated, fragrance-free. Made for your cycle days, and any day that calls for a little warmth.

~41°, gentle and steady Up to 8 hours, wherever you go Warms on contact with air

see how it works →

where to start

shop warmth now.

the try-set

on us · free

Three patches to feel it on your own day. Yours free. Just cover shipping, $9.95 in Australia.

get try-set now →

keep warm & subscribe

$28 / box

Warmth that arrives before your cycle does. Two boxes every month or two: $56 for two, $28 a box. Pause, skip or cancel anytime.

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the boxes

from $35

Six patches a box, no commitment. Yours whenever you want them.

shop commitment-free →

Harry, ember patch co-founder, with his girlfriend

this is harry and his girlfriend, one of our first testers.

why we started ember patch

We're two guys, so we won't pretend to know what a period feels like. What we did see was the people we love, spending their period days on the couch with a hot water bottle, waiting for it to go cold. The thing that comforted them most was the same thing keeping them home. So we set out to make that warmth portable, and we tested every batch on the people it's actually for.

We don't have 80,000 reviews yet, and we're not going to fake a single one. What we can promise is that we sweated the small stuff, and we'll keep listening.

keep warm,
harry & aaron

a work in progress

our sustainability.

We want ember to be gentle on more than your day. The goal is simple: leave things a little better than we found them, and be honest about how far along we are.

Right now, our packaging is recyclable and compostable: it breaks down or goes back round, instead of piling up. Not everything's there yet. The patch is single-use, and we won't pretend otherwise. It's naturally derived, which is a start, not the finish.

So we keep looking for better. Quietly, one improvement at a time. Not perfect, just always moving the right way.

verified reviews

what people are saying.

choose your warmth

pick your ember.