CornerSeal Night Balm for Cracked Mouth Corners
It finally starts to close, then you yawn and it rips open again. Seal your mouth corners while you sleep.
- Always worse on the side you sleep on? that's saliva soaking the corner all night
- Zinc oxide + dexpanthenol seal out saliva and support the skin barrier
- One dab at bedtime, no steroid, no mixing three creams
Why should I subscribe?
- Free shippingon your 1st order
- Save up to 34%on every delivery
- Pause or cancelany time
- Never run outit ships automatically
How does CornerSeal work?
At night your mouth relaxes and saliva slips into the corners, where it sits for hours. The skin goes soft, and the next yawn splits it open again. CornerSeal lays a thin film right in the corner: zinc oxide, an FDA skin protectant, seals out saliva while you sleep, and dexpanthenol (pro-vitamin B5) supports the skin's natural barrier. Its water-free base doesn't dissolve when it gets wet, unlike a regular lip balm.
How do I use it?
Every night before bed, after brushing your teeth, dry the corners of your mouth and apply one small dab with the fine tip to each corner. You can also apply it during the day if you like: it goes on clear.
Is there a steroid in it?
No. CornerSeal contains no hydrocortisone or any other steroid, no fragrance, no menthol and no camphor, so you can use it every night near your mouth.
Why didn't Vaseline or lip balm work for me?
They're made for your lips, not for the wet fold at the corner. Saliva lifts them off within minutes, and flavored or mentholated balms can make a crack sting even more. CornerSeal is built to stay put in that fold all night.
How fast will I notice a difference?
Everyone is different. Use it every night for at least 2 weeks to give your corners a real chance to settle, and keep using it as a nightly habit if yours tend to come back. Every order comes with our 60-day money-back guarantee.
Made for the corners. Nothing your lips don't need.
Made for the Mouth Corners
Seals Out Saliva All Night
Dexpanthenol, Studied on Mouth Corners
Steroid-, Fragrance- & Menthol-Free
1 Dab at Bedtime
Clear Finish, No White Paste
Sound familiar? You're not the only one.
Waking up split open
It's always on the side you sleep on. You open your mouth in the morning and something rips.
- ✓Seals the corner from saliva all night
- ✓Fine tip goes right into the fold
- ✓Apply once, before bed
It closes, then rips again
It finally starts to close, then you yawn or bite into a sandwich and you're back to day one.
- ✓Protects the crack while you sleep
- ✓Dexpanthenol supports the skin barrier
- ✓Water-free base that stays put
Hiding it at work
You're embarrassed to even be at work. You talk with your hand on your chin and skip the lipstick.
- ✓Goes on clear, not white paste
- ✓Wear it day or night
- ✓No fragrance, no menthol sting
Tried everything
Vaseline and Aquaphor were getting you nowhere. Antifungal cream, hydrocortisone, three creams mixed in an old ChapStick tube.
- ✓One tube, one simple step
- ✓No steroid near your mouth
- ✓60-day money-back guarantee
Your mouth corners aren't dry. They're soaking in saliva all night.
The corners of your mouth are the one spot on your face that stays wet almost all the time, and even more while you sleep.
When you sleep, your mouth opens a little and saliva pools in the corners for hours. The skin turns soft and pale, like your fingers after a long bath, and the first big yawn splits it open. Germs from your mouth settle into the crack and keep it red and raw. Creams that target those germs can clear things up for a while, but the saliva comes back every night. In one long-term study, 80% of people cleared with antimicrobial creams got it again. CornerSeal works on the saliva itself.
1. Dry the corners
At bedtime, after brushing, pat the corners of your mouth dry.
2. One dab per corner
The fine tip lays a thin film in the fold. Zinc oxide seals out saliva while you sleep, and dexpanthenol supports the skin barrier.
Steroid-free. Fragrance-free. Menthol-free. Clear finish.
Two active ingredients. A base that stays put.
No steroid, no fragrance, no essential oils. Just what the corners of your mouth need at night.
Zinc Oxide
An FDA-recognized skin protectant. Forms a barrier that seals the corner from saliva and helps relieve chapped or cracked skin.
Zinc oxide is the skin protectant doctors have long used on raw skin exposed to moisture.
Dexpanthenol
Pro-vitamin B5. Supports the skin's natural barrier and helps the skin stay soft and comfortable.
In a randomized clinical study, a single application of dexpanthenol on the mouth corners cut next-day cracking from 44% to under 10%.
Lanolin
A rich, water-free base that doesn't melt away when it meets saliva.
Beeswax
Helps the balm hold in the fold of the corner all night.
Study results refer to individual ingredients, not to the CornerSeal formula.
Most products are made for your lips. CornerSeal is made for the corners.
If you've tried lip balm, hydrocortisone and antifungal cream and your corners keep cracking, here's why.
| Regular lip balm | Hydrocortisone cream | Antifungal cream | CornerSeal | |
|---|---|---|---|---|
| Stays put against saliva all night | ✕ | ✕ | ✕ | ✓ |
| Made for the mouth corners | ✕ | ✕ | ✕ | ✓ |
| Steroid-free | ✓ | ✕ | ✓ | ✓ |
| Fragrance- and menthol-free | Often not | ✓ | ✓ | ✓ |
| One dab at bedtime | ✕ | ✕ | ✕ | ✓ |
| Money-back guarantee | ✕ | ✕ | ✕ | 60 days |
One dab tonight. A new night habit.
CornerSeal works while you sleep, every night.
Seal the corners
Pat dry, one dab per corner, and go to sleep. No more waking up in a puddle of saliva on bare skin.
Calmer mornings
Keep applying every night so the skin stays protected while it settles.
Keep it from catching you off guard
If your corners tend to crack every winter or every few weeks, keep CornerSeal as your nightly habit.
Individual results vary.
Made for anyone whose mouth corners keep cracking
It keeps coming back
Months or years on and off, and every time it comes back you feel defeated.
You wake up with your corners split
You sleep with your mouth open, drool a little, or lick your lips without noticing.
You're on Accutane or retinoids
Your lips are a mess and the corners split every time you smile.
Winter, braces or dentures set it off
Cold wind, a mask, braces or dentures, and the first crack shows up right on schedule.
Stop use and ask a doctor if your condition worsens or lasts more than 7 days.
Try it for 60 days, risk-free
Use CornerSeal every night for 60 days. If you're not completely happy, email us and we'll refund every penny. No questions asked.
Get CornerSealFrequently Asked Questions
How long does one tube last?
One 0.5 oz (15 g) tube lasts about a month at one small dab per corner every night.
Can I use it during the day?
Yes. It goes on clear, with no white paste, so you can apply it in the morning too or whenever your corners feel tight.
Is it safe for kids?
CornerSeal is made for adults and teens. For children under 6 months, ask a doctor. Keep the tube out of reach of children.
I'm on Accutane. Can I use it?
Yes. CornerSeal contains no retinoid, steroid, fragrance or menthol, and is meant for chapped or cracked skin around the mouth.
Who should not use it?
Do not use on deep or puncture wounds, animal bites or serious burns, and don't use it if you're allergic to lanolin or beeswax. Stop use and ask a doctor if your condition worsens, or if symptoms last more than 7 days or clear up and come back within a few days.
Can I pause or cancel my subscription?
Anytime. Skip a delivery, change your frequency or cancel in a few clicks from your account, or just send us an email. No fees, no commitment.
What is your return policy?
Try CornerSeal for 60 days. If you're not completely satisfied, contact us and we'll give you a full refund.
CornerSeal temporarily protects and helps relieve chapped or cracked skin and lips. Study results mentioned on this page refer to individual ingredients (dexpanthenol, zinc oxide), not to the CornerSeal formula. For external use only. When using this product, do not get into eyes. Stop use and ask a doctor if condition worsens, or if symptoms last more than 7 days or clear up and occur again within a few days. Do not use on deep or puncture wounds, animal bites or serious burns. Keep out of reach of children. If swallowed, get medical help or contact a Poison Control Center right away.
