Stop the Burning, Itching & Wetness of Skin Fold Rash In 60 Seconds
Before
AfterDermatologist-tested formula clears the yeast and bacteria causing your rash - then dries into an invisible powder barrier that keeps you comfortable all day.
- ✓Instant cooling - stops burning and itching
- ✓Clears rash-causing yeast and bacteria in 24 hrs
- ✓Dries powder-soft - no greasy residue
- ✓pH-balanced formula prevents recurrence
The Proof Is In The Results
Real women, real folds, and the same skin a few weeks later.
Bra Is Bearable Now
Summer was hell for my under-breast area. Always red, sore, broken out. Wearing a bra was torture. One application after every shower and the redness and the sores are gone.
Dianna S.
Nothing Else Worked
I have folds in the groin area. Until Sundaye, nothing worked. The itching, the rash, the discomfort even my doctor struggled to help with. I found this and everything changed.
Sheila P.
The Chafing Is Gone
After a few uses my red, sore, itchy irritated spot is completely gone. No more sweaty red thighs. This one really lives up to what the ad said it would do.
Heidi G.
Cleared In One Week
I get a bad rash beneath my stomach constantly. My prescription was not working. I started this about a week ago. It cleared right up and it has not come back.
Genene B.
Back To Normal Skin
My underarms and under my breasts have healed nicely. They are back to pink, not rashy. Where it was dark red and burning, it feels right again.
Linda M.
The Problem
“I Already Use Powder & Diaper Cream. Why Would This Work Different?”
Most rash products, even the “medicated” ones, solve the wrong problem. They're built for babies with thin, sensitive skin — not for adult skin folds that stay warm, trapped, and constantly rubbing all day.
Skin fold rash isn't just moisture. It's yeast, friction, and heat — and most products only fight one of the three.
Baby Diaper Cream
Thick and pasty, sits on top, never absorbs, and isn't antifungal.
Baby Powder / Cornstarch
Absorbs moisture short-term, but cornstarch actually feeds yeast.
Antifungal Powder Alone
Clears yeast, but does nothing to cool burning or protect the skin.
Steroid Creams
Calms redness fast, but thins skin over time and the rash returns worse.
Antiperspirant Hacks
Blocks sweat temporarily, but isn't made for skin folds and often irritates further.
Why It Always Comes Back
A Skin Fold Is A Sealed Room
Skin touches skin, heat builds, and sweat has nowhere to go. In a warm, damp crease yeast multiplies, and every step you take rubs the softened skin thinner. Break the skin and the loop only runs faster.
Your skin fold rash isn't just wet. It's fighting yeast, friction and heat all at once — and that's exactly why powders and creams alone can't fix it.
That's exactly why Sundaye was built to clear the cause and shield the skin — not just soak up moisture.
A Second Opinion
Skin fold rash is almost never one problem. It's yeast, friction and heat reinforcing each other — which is exactly why a single-action product clears it and then loses it.
The Solution
Sundaye Intertrigo Relief Cream
Developed with leading dermatologists, mycologists and cosmetic chemists. The first cream of its kind that combines medical-grade antifungals + a powder-finish drying matrix — so you get clinical-strength rash treatment that actually feels light, dry and invisible on the skin.
DermTestedPharmaceutical-Grade Actives
10% undecylenic acid + 15% zinc oxide for clinical-strength relief.
Powder-Set Dry-Down Technology
Goes on as a cream, transforms into a silky powder barrier within minutes. No grease. No staining. No mess.
100% Steroid-Free
No thinning skin. No rebound flares. No long-term side effects. Safe to use every day, for life.
Dermatologist Tested
Developed with board-certified dermatologists. Hypoallergenic and pH-balanced.
How It Works
How Sundaye Eliminates Skin Fold Rash
In three stages — all from one tube.
Kills
10% undecylenic acid and tea tree oil target rash-causing yeast and bacteria at the source.
Soothes
Zinc oxide and witch hazel calm the burning and settle redness in raw, rubbed skin.
Dries & Protects
Silica and tapioca dry down to a powder-soft barrier that holds through heat and sweat.
Application Areas
Wherever Skin Touches Skin, Sundaye Works
One tube. Every fold. Every situation.
Under-Breast Folds
Stops the constant burning and wetness women experience after sweating, working out, or wearing tight bras.
Before
AfterGroin & Inner Thighs
Clears chafing rash and yeast irritation — without the sting of harsh powders or sprays.
Before
AfterBelly / Stomach Folds
Eliminates the angry red rash and odor that develops in the deep folds of the abdomen.
Before
AfterUnderarms
Calms shaving irritation, deodorant rash, and chronic underarm chafing.
BeforeAfterNeck Fold
Calms the damp, chafed rash that settles in neck creases without stinging tender skin.
Before
AfterApron Belly Fold
Dries and protects the deepest fold, where heat and sweat get trapped all day long.
Before
AfterPowerful Ingredients
Inspired By WWII Medical Research. Validated By Modern Dermatology.
We combined battle-tested military medicine with cutting-edge cosmetic chemistry. Every ingredient is here for a reason — and backed by decades of clinical research.
Undecylenic Acid
Antifungal that eliminates yeast, odor, and helps prevent recurrence.
Zinc Oxide
Creates a protective barrier to soothe burning and reduce friction.
Witch Hazel Distillate
Dries excess moisture, balances skin, and calms irritation without stinging.
Microencapsulated Tea Tree Oil
Slow-release antimicrobial protection that fights odor and bacteria.
Silica + Tapioca Starch Complex
Absorbs moisture and leaves a silky, powder-dry protective finish.
Plant-Derived Glycerin
Hydrates and strengthens the skin barrier without drying delicate skin.
How To Use
The 3-Step Dry-Down System
Most users report burning relief within minutes, visible improvement in 3–7 days, and complete healing in 1–2 weeks.
PrepClean & Dry
Wash the affected area with mild soap and water. Pat completely dry before applying.
Twice dailyApply A Thin Layer
Apply a thin, even layer over the rash. Cover the affected area and the surrounding skin.
ResultLet It Transform
Let it dry into a silky powder barrier. With regular use the fold heals over 1–2 weeks.
Results Timeline
What To Expect Day By Day
The first minute feels different. The first week looks different.
Burning Stops
Pain and irritation quickly fade away, replaced by a refreshing, calm and soothing sensation of immediate comfort.
The Skin Is Dry
Moisture and unpleasant smells clear away, leaving the skin completely dry, refreshed and comfortably protected.
Redness Settles
Redness and swelling calm down while itching vanishes — raw, cracked skin gets the relief it needs to start healing.
The Rash Clears
Nearly all users see their rash completely gone, with smooth texture and natural tone fully restored.
It Stays Away
Applying just two or three times a week keeps rashes away and provides lasting protection against future flare-ups.
The Science Behind
Recommended By Dermatologists. Backed By Real Numbers.
Backed by years of research and tested with leading skin specialists.
“I recommend a cream like this to my patients struggling with skin fold rashes — the fast-drying formula actually works.”
Dr. Laura Bennett, MDBoard-Certified Dermatologist · 22 years of practiceSelf-assessment consumer panel study, n=214, 12 weeks. Results are participant-reported and will vary between individuals.
Comparison
Sundaye vs Everything Else You've Tried
Everything You've Tried Before
Diaper creams · sprays · powders- ✕Doesn't clear yeast and fungus
- ✕Doesn't dry the skin fold
- ✕Doesn't stop burning instantly
- ✕Doesn't eliminate odor
- ✕Steroids thin the skin over time
- ✕Leaves greasy marks on clothing
- ✕Doesn't prevent recurrence
Sundaye Relief Cream
Powder-Set formula- ✓Clears yeast and fungus
- ✓Dries the skin fold in 60 seconds
- ✓Stops burning instantly
- ✓Eliminates odor
- ✓100% steroid-free, safe every day
- ✓No greasy residue or staining
- ✓Prevents recurrence
Try It Risk-Free. You Can Even Keep The Tube.
If you're not completely satisfied, email support for a full refund. That's how confident we are.
Real Results From Real People
2,412 reviews · 4.8 average rating
I have suffered from under-breast rash for years and this is by far the best remedy I have ever used. The wetness was completely gone after just 2 days.
The cream is very easy to use and doesn't sting even on raw skin. I will never go back to those awful diaper rash creams or messy powders.
I was skeptical after trying so many products over the years. The burning disappeared within minutes of the first application and it healed in 4 days.
I was completely broken out around my inner legs and abdomen. This helped me get over it quicker than the cream my allergist prescribed.
It is soothing and it dries down, and it lasts like a shield between applications. The irritation and itchiness under my arms went away completely.
I had rawness in the groin area for years and I stopped bringing it up to anyone. The itching eased within days of the first use. It has not come back.
I have suffered from under-breast rash for years and this is by far the best remedy I have ever used. The wetness was completely gone after just 2 days.
The cream is very easy to use and doesn't sting even on raw skin. I will never go back to those awful diaper rash creams or messy powders.
I was skeptical after trying so many products over the years. The burning disappeared within minutes of the first application and it healed in 4 days.
I was completely broken out around my inner legs and abdomen. This helped me get over it quicker than the cream my allergist prescribed.
It is soothing and it dries down, and it lasts like a shield between applications. The irritation and itchiness under my arms went away completely.
I had rawness in the groin area for years and I stopped bringing it up to anyone. The itching eased within days of the first use. It has not come back.
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Frequently Asked Questions
Most products only address one cause. Sundaye treats all three — moisture, friction and infection — in one application. That's why it works when nothing else has.
No. The microencapsulated tea tree oil releases slowly — no burn, no sting, even on cracked skin.
Gold Bond turns to paste. Lotrimin stays wet. Desitin is for babies. None of them were built for adult skin folds. Sundaye was.
1 tube = one area. 2 tubes = multiple areas. 3 tubes = full body or to share.
The cream relieves burning, wetness and discomfort from the very first application — most users report the “on fire” feeling stops within minutes. After 2–4 days of twice-daily use, the rash, odor and moisture stop. After 1–2 weeks of consistent use the skin fold is fully healed.
Yes. It's formulated for all skin fold areas including under the breasts, abdominal folds, groin, inner thighs, between the buttocks and underarms.
Every tube comes with a risk-free 365-day guarantee. If you don't get the result you want, contact support within 365 days of delivery and we'll process a full refund right away.
No. Sundaye products are sold exclusively through our official website. We do not authorize any third-party sellers.