Why do I itch after a shower?

Most of the time, it's dryness. Hot water and harsh foam strip the oils from the skin's outer layer; the skin loses water, feels tight and itches. Keep the water lukewarm, don't drag out your shower and choose a gentle cleanser. If the itching doesn't go away or you have a rash, see a dermatologist.

My legs get flaky in winter. What should I do?

Cold, dry air puts strain on the skin's protective layer. In winter, keep showers short and the water lukewarm, use a gentle cleanser and apply moisturiser after drying off. On skin that dries out in winter, a body wash with moisturising ingredients was shown to reduce dryness compared with an ordinary bar soap.

Does hard water affect the skin?

It can. On skin washed with hard (limescale-rich) water, more of the foaming agent stays behind, and this residue irritates the skin. Softening the water reduced the effect. If your water at home is hard, rinse the foam off thoroughly with plenty of water.

Should I apply moisturiser straight after the shower?

What matters is applying it, not the exact second. In a study of 60 people, applying moisturiser immediately after washing or 30 minutes later gave the same result. Both were better than not applying any at all.

Why does everyone's sweat smell different?

Both the secretions and the bacterial community in the armpit vary from person to person. Even the raw material of sweat odour differs between women and men: in men an acidic odour stands out, in women a sulphurous one.

Does deodorant affect my underarms?

Yes. Deodorants and antiperspirants change the bacterial community in the armpit. In one study, bacterial counts rose in people who stopped using antiperspirant and dropped sharply when they started again.

Are prebiotics and probiotics the same thing?

No. A probiotic is a live microorganism. A prebiotic is a nutrient that the beneficial microorganisms living on the skin or in the gut selectively use. This shower gel is prebiotic; it contains no live microorganisms.

Can I use it every day?

Yes, it's made for daily use. If you shower more than once a day, keep the water lukewarm and your showers short.

Can I use it on my face too?

It was developed for the body. For the face, Prebiotic Face Cleansing Gel is a better fit.

No. A light, clean scent. No heavy perfume.

How long does 300 ml last?

About 1.5 to 2 months for one person using it daily. If you buy the set, the 1 L bottle stays in the bathroom and you refill the 300 ml from it.

From ecoprobiotic.com.tr. There's the 300 ml bottle and the 300 ml + 1 L set; shipping is free, and orders placed by noon on weekdays ship the same day.

ECOPROBIOTIC

PrebioticShowerGel

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Prebiotic shower gel · 300 ml · 1 L

Out of the shower, does your skin feeltight?Your barrier may be wearing thin

Q: Why does sweat smell?

Sweat itself is odourless. Underarm secretions contain odourless molecules. When certain bacteria living on the skin break them down, sharp-smelling molecules are released. Our noses pick these up even in tiny amounts.

Hot water and harsh lather wear down your skin's protective shield a little every day. Prebiotic Shower Gel supports that shield while it cleanses. And its formula helps against sweat odour, too.

Buy now · ₺429 First, see how it works

Helps against sweat odour
Moisturising
Free from harsh sulphates and alcohol

EcoProbiotic Prebiotic Shower Gel 300 ml with water splashing around it

with lukewarm waterno harsh sulphates300 ml · 1 L

Short answer

What is a prebiotic shower gel?

A body cleanser that contains a prebiotic. A prebiotic is a nutrient that the beneficial microorganisms living naturally on your skin use selectively. The aim of a shower gel is to clean your skin without wearing out its protective barrier. EcoProbiotic Prebiotic Shower Gel is formulated to help against sweat odour and is free from harsh sulphates and alcohol; it comes in 300 ml and 1 L sizes.

Read the long answer

Science

What happens to your skin in the shower?

The top layer of your skin is a thin protective shield. It keeps water in and irritants out. In the shower, two things wear it down most: hot water and harsh lather.

2.3×

Why does hot water dry your skin?

50 people held their hands in water at about 41 degrees for 10 minutes. The water evaporating from their skin rose 2.3-fold. In cold water the increase was much smaller.

Herrero-Fernandez M 2022Clinical, n=50

40 °C

Is it the water or the lather?

It's the two together. Plain water, warm or hot, didn't change the skin's water loss. When a harsh foaming agent was used at 40 degrees, water loss rose noticeably.

Ohlenschlaeger J 1996Randomised experimental, n=20·Berardesca E 1995Experimental, n=10

Hard water

Does the water at home matter too?

In hard water, more of the foaming agent stays on the skin and irritates it more. Softening the water reduced this effect. Rinse the lather off with plenty of water.

Danby SG 2018Experimental, n=80

29.4%

How common is dry skin?

A screening of 48,630 people in Germany found dry skin in roughly one in every three to four. The rate rises with age; in cold, dry weather the barrier is under more strain.

Augustin M 2019Cross-sectional, n=48,630·Engebretsen KA 2016Systematic review

Try it yourself

Choose your water temperature

In a study of 50 people, hands were kept in water for 10 minutes and the water evaporating from the skin was measured. Drag the slider and see the difference.

Hot water · 41 °C

Water evaporating from the skin after 10 minutes

58.58g/h/m²

Before the water25.75

In hot water, after 10 minutes+127%

Hot water more than doubled water loss. In another study, plain water alone didn't create this difference; the gap grew when hot water and a harsh foaming agent came together.

Herrero-Fernandez M 2022Clinical, n=50·Ohlenschlaeger J 1996Randomised experimental, n=20· Measured on hands, not with this product

Green shower gel bottle on a stand under a running shower

turn it down a little

Sweat odour

Sweat doesn't smell. The odour comes later

So the issue is less about sweating and more about what happens to sweat on your skin.

Prebiotic Shower Gel is formulated to help against sweat odour. After exercise, lather your underarms, chest and back with a little extra care, then rinse with plenty of water.

The deodorant you use also changes the bacterial community in your underarms. In one study, bacterial counts rose in people who stopped using antiperspirant, then dropped sharply when they started again.

Urban J 2016Experimental, n=18·Callewaert C 2014Intervention, n=9

Sweat comes out odourless

Researchers collected 500 ml of underarm sweat under sterile conditions. It didn't smell.

Troccaz M 2004Laboratory·Shelley WB, Hurley HJ, Nichols AC 1953Experimental

Some skin bacteria break it down

Sweat contains odourless molecules. A few bacterial species living in the underarm break them down. Not every species causes odour; most of the smell comes from just a few.

Natsch A 2003Laboratory·Bawdon D 2015Laboratory·Rudden M 2020Laboratory

The odour is released

Sour acids and onion-like sulphur molecules. Our noses pick them up even in tiny amounts.

Natsch A, Schmid J, Flachsmann F 2004Laboratory

Prebiotic

What does a prebiotic do?

A prebiotic is a nutrient that beneficial microorganisms use selectively. Antibacterial products clean without discriminating. The idea behind a prebiotic product is different: to clean while protecting the skin's natural balance.

Gibson GR 2017Consensus statement·Krutmann J 2009Review

What do we know?

A face serum containing the prebiotic GOS increased the skin's water retention over 8 weeks compared with a placebo.

Hong KB 2020Randomised, placebo-controlled, n=60· A leave-on serum

In the lab, some prebiotics held back unwanted bacteria while leaving the beneficial species naturally found on the skin untouched.

Di Lodovico S 2020Laboratory·Le Bourgot C 2022Laboratory

On skin irritated by a harsh foaming agent, moisture dropped and the skin's bacterial community changed as well. That's why gentle cleansing matters.

Leoty-Okombi S 2021Experimental

What don't we know?

In a 6-week study with a prebiotic shower gel and lotion, the skin's bacterial profile changed. Moisture, however, was similar to a product without prebiotics.

Li M 2023Randomised clinical, n=53· Manufacturer-supported

How a prebiotic works in a product that's rinsed off in the shower isn't well understood yet. Reviews also note that knowledge about prebiotics applied to the skin is limited. We're saying so openly.

Al-Ghazzewi FH, Tester RF 2014Review·Zeng M 2025Review

Full evidence table

300 ml

ECOPROBIOTIC

Prebiotic Shower Gel

Formula that helps against sweat odour
Moisturising
Free from harsh sulphates
Alcohol-free

Choose a size

300 mlFor the gym bag and travel₺429300 ml + 1 LThe 1 L stays in the bathroom, you refill the 300 ml₺999

Buy 300 ml · ₺429

Free shipping. Weekday orders placed before noon ship the same day.

300 ml for the gym bag, 1 L for the bathroom

your bathroom's green bottle

EcoProbiotic Prebiotic Shower Gel among lather and water bubbles

How to use

How do you use it?

Green shower gel bottle in a marble shower

Every day

1Keep the water lukewarm.
2Pour a little into your palm or onto a sponge and work up a lather.
3Spread it over your whole body, then rinse with plenty of water.

Shower gel standing next to a gym bag in a changing room

After exercise

1Don't put off your shower after exercise.
2Lather your underarms, chest and back with a little extra care.
3Rinse thoroughly.

Woman just out of the bath in a bathrobe and towel, with shower gel beside her

For dry skin

1Keep showers short and the water lukewarm.
2Spread the lather without rubbing too hard.
3Apply moisturiser after drying off.

Applying moisturiser straight after the shower or half an hour later gave the same result; what matters is that you apply it.

Nguyen KH 2022Crossover clinical, n=60

FAQ

Anything on your mind?

Does a hot shower really dry out your skin?

EcoProbiotic

Yes, especially together with foam. In one study, skin kept in water at about 41 degrees for 10 minutes lost more than twice as much water. In another study, plain water didn't change water loss whether lukewarm or hot; when a harsh foaming agent was used at 40 degrees, water loss rose noticeably. So when water and foam come together, the effect grows.

Herrero-Fernandez M 2022Clinical, n=50·Ohlenschlaeger J 1996Randomised experimental, n=20

All questions

Guide

What people ask about showers and skin

All articles

Does a hot shower dry out your skin?

Yes, especially combined with harsh foam. Skin that spent 10 minutes in water at about 41 degrees lost more than twice as much water. Keep the water lukewarm, keep showers short and choose a gentle cleanser.

Why does skin itch after a shower?

The most common cause is dryness. Hot water and harsh foam strip away the skin's lipids, so the skin loses water, feels tight and itches. Lukewarm water, a gentle cleanser and a moisturiser after the shower are often enough.

Why does sweat smell?

Sweat is odourless. A few bacterial species living on the skin break down odourless molecules in underarm secretions; this is how sharp-smelling molecules are released.

What does sulphate-free shower gel mean?

A shower gel made without harsh foaming agents such as sodium lauryl sulphate (SLS). These foaming agents act more strongly on the skin's lipids and proteins; they are one of the common causes of tightness after a shower.

Keep the water lukewarm, pick a gentle lather

Prebiotic Shower Gel supports your skin barrier while it cleanses. A formula that helps against sweat odour, free from harsh sulphates and alcohol.

Buy now · ₺429 Ask on WhatsApp

The studies described on this site were not carried out with EcoProbiotic products. We have set out what we say and what we don't say here.