What Is Skin Flooding, and Does Your Skin Actually Need It?

There is a particular kind of quiet in an upstate New York house in winter. The windows stay closed. The wood stove keeps burning. Outside, the snow keeps falling and everything looks still.

Then you wash your face, and your skin feels anything but calm.

Tight. Dry. Stripped.

That feeling is familiar enough to make almost any promise of hydration sound appealing, including one with a name as dramatic as "skin flooding." But before adding another bottle to the bathroom shelf, I want to understand what the routine is actually doing.

I make a toner, so you might expect me to tell you that you need one. I'd rather tell you what the evidence actually says, and let you decide what belongs in your routine.

Three jobs a moisturizer can do

What happens when you "flood" your skin?

Most online versions start with freshly cleansed, damp skin, followed by a mist or toner, a hydrating serum, and a moisturizer. Some repeat the misting step two or three times before anything else goes on.

The name makes it sound as though skin needs to be filled to the brim. I find it more useful to ask what each product contributes. A humectant pulls water toward the surface. An emollient smooths. An occlusive helps keep that water from evaporating straight back into the dry winter air. Cleveland Clinic explains these ingredient roles.

A single good moisturizer can combine all three. The number of bottles doesn't tell you how well the jobs are being done.

Does skin flooding work?

There's a difference between studying moisturizing ingredients and proving that a particular layering routine is better.

In a randomized, double-blind crossover study of 51 volunteers with dry skin, researchers compared a cream containing both glycerol (a humectant) and petrolatum (an occlusive) against versions containing fewer of those ingredients. The combined formula performed better on measurements of hydration and water loss. Read the study on glycerol and petrolatum.

Think about what that does and doesn't tell us. It supports the idea that a water-attracting ingredient and a water-sealing ingredient work well together. It doesn't show that applying them as five separate products beats one well-made cream.

The damp-skin part is solid, too. The American Academy of Dermatology recommends applying moisturizer while skin is still damp as part of caring for dry skin. Read the AAD's dry skin tips.

What I couldn't find was evidence for an ideal number of layers. So my takeaway is to borrow the useful principle without turning it into another assignment.

A simpler way to try it

Start with the products you already use and tolerate.

1. Cleanse gently. Use lukewarm water and skip the scrubbing. (If you're curious about a gentler way to cleanse, here's how oil cleansing works.)

2. Leave your skin slightly damp. It doesn't need to be dripping.

3. Add a hydrating step if you enjoy one. A toner or a serum is optional, and you don't need both.

4. Moisturize. This is the step to prioritize. Misting and stopping there can leave skin feeling drier once the water evaporates.

In the morning, finish with sunscreen. The AAD recommends a broad-spectrum, water-resistant SPF 30 or higher, alongside shade and protective clothing. Read the AAD's sunscreen guidance.

One caution: this is an approach to moisturizing, not a new rule for everything on your shelf. Keep following the directions for exfoliants, retinoids, and prescription treatments rather than layering them onto damp skin.

Do you need a toner?

No. I make one, and I still want that answer to be clear.

A toner can be a lovely part of the ritual: a light, cool texture after cleansing, a moment to slow down before moisturizer. But "toner" is a product category, not a guarantee of hydration or gentleness. Look at the whole formula, and at how it feels on your skin.

Our Hydrating Mushroom Toner brings reishi and tremella into that step. Tremella's polysaccharides are humectants, the same family of job as hyaluronic acid. (Read more in our guide to mushroom skincare.) Our mushroom extracts are made with water and alcohol, so I wouldn't call it alcohol-free. And I wouldn't assume botanical ingredients suit every sensitive complexion.

If your skin already feels comfortable with a cleanser and moisturizer, there's no missing step to fix.

Who should be careful with extra layers?

If you're prone to breakouts, a heavier finish isn't automatically a better one. Choose a moisturizer suited to your skin. If your skin is dry and peeling, resist the urge to scrub the flakes away.

If you have eczema or rosacea, follow your existing care plan. Gentle, fragrance-free products are generally a better starting point than a stack of new botanicals.

Whatever you try, test it on a small area first. The AAD suggests applying a new product twice a day for 7 to 10 days, following its directions, and stopping if it causes a reaction. Read how to test skincare products.

Burning, itching, cracking, or dryness that won't go away deserves a conversation with a dermatologist, not more layers.

Let the routine become ordinary

Go back to that quiet winter house for a second. What I love about this kind of routine isn't the number of steps. It's the small pause: warm water on your face, your hands against your skin, a few minutes before the rest of the evening.

That's the kind of connection I want Hongo to make room for. Knowing what you're using. Noticing how your skin feels. Letting a routine be something you return to, without constantly rebuilding it.

Call it skin flooding if you like. You can also just call it taking care.

With warmth,
Krystina

Skin flooding FAQ

What is skin flooding?

Skin flooding is a moisturizing routine where you apply hydrating products to damp skin, often a mist or toner and a serum, and finish with a moisturizer to help hold that water in.

Does skin flooding actually work?

Its core ideas do. Moisturizing damp skin is established advice, and combining water-attracting and water-sealing ingredients is supported by research. There's no evidence that a many-step routine outperforms one well-chosen moisturizer.

Do I need a toner for skin flooding?

No. A toner is optional. If you enjoy one, use it on damp skin before your moisturizer. If you don't, a gentle cleanser and a good moisturizer applied to damp skin cover the same principle.

Is skin flooding good for oily or acne-prone skin?

It can be, if you keep the layers light and choose a moisturizer suited to your skin. Heavier isn't automatically better.

Should I skin flood morning or night?

Either works. Many people prefer the evening, when there's more time. In the morning, finish with sunscreen.

References

• Combined effects of glycerol and petrolatum in an emollient cream: a randomized, double-blind, crossover study in healthy volunteers with dry skin. PubMed 31532576
• Cleveland Clinic. Emollients. clevelandclinic.org
• American Academy of Dermatology. Dermatologists' tips for relieving dry skin. aad.org
• American Academy of Dermatology. How to select a sunscreen. aad.org
• American Academy of Dermatology. How to test skin care products. aad.org

Originally published January 24, 2026 · Updated October 2026. This article is for educational purposes only. Hongo skincare products are cosmetics and are not intended to diagnose, treat, cure, or prevent disease. Patch test new products before full use.