Clarifying Cleansing Foam

Most cleansers are built on ordinary purified water and call it a day. Shiseido starts with something more particular: water drawn from Kirishima, a volcanic spring region in southern Japan where the mineral composition — potassium, sodium, magnesium, calcium — reads like a prescription for skin health. Whether this makes a measurable difference in a product you rinse off in sixty seconds is debatable, but it tells you something about Shiseido's approach to even the humblest step in a skincare routine.

The Clarifying Cleansing Foam launched in 2018 as part of Shiseido's InternalPowerResist line, built on 25 years of the company's research into skin immunity and Langerhans cell protection. For a cleanser, that is an unusual amount of scientific backing, and the formula reflects it. Kaolin — white clay — does the heavy lifting on oil control, absorbing excess sebum during the cleansing process in a way that surfactants alone cannot replicate. It is the ingredient that gives this cleanser its clarifying identity, distinguishing it from standard foaming face washes that rely solely on detergents.

The Japanese botanical story is what elevates this from functional to interesting. Artemisia princeps — yomogi, or Japanese mugwort — is a plant with serious credentials in the dermatological literature. Published research demonstrates its ability to upregulate filaggrin and loricrin, proteins essential for maintaining the skin's protective barrier. Including it in a cleanser is a thoughtful choice: you are protecting the very barrier that cleansing threatens to disrupt. Rice germ oil adds conditioning and softening, a nod to centuries of Japanese beauty tradition involving rice water. And silk powder — derived from actual silkworm cocoons — contributes to that unmistakably polished, smooth feeling that lingers after you rinse.

The formula also includes sodium acetylated hyaluronate, a modified hyaluronic acid with enhanced skin affinity. Finding this in a rinse-off product is unusual and suggests Shiseido is betting it deposits enough of a hydrating film to matter even after the foam goes down the drain. It is an interesting formulation choice that distinguishes this from cleansers that are purely about removal.

Now for the reality check. The surfactant system here is soap-based — stearic acid and myristic acid saponified with potassium hydroxide. This produces a luxuriously rich, dense foam from just a pearl-sized amount, and the lather is genuinely satisfying. But saponified fatty acid systems are inherently alkaline, likely pushing the pH into the 8-9 range. For oily and combination skin that can handle this, the thorough cleanse feels fantastic. For dry or sensitive skin, this is where problems start. Multiple reviewers report a tight, squeaky-clean feeling that signals the natural lipid barrier has been disrupted.

Then there is the SLS question. Sodium Lauryl Sulfate appears at the end of the ingredient list, suggesting a low concentration, but its presence at all in a product from a brand with 150 years of pharmaceutical heritage raises an eyebrow. SLS is a well-documented irritant, and its inclusion — even at trace levels — will be a dealbreaker for some. Add the fragrance (with linalool, geraniol, and citronellol) and you have a cleanser that, despite its botanical elegance, is firmly not for reactive skin.

The sensory experience is where Shiseido's craftsmanship shines brightest. The creamy paste transforms into a cloud of dense, fine foam with minimal effort. The scent is a subtle floral — pleasant rather than aggressive, though opinions vary. And the post-rinse feeling, for skin types that can tolerate the formula, is genuinely luxurious: clean, smooth, and polished without that parched tightness that lesser cleansers inflict.

At $39 for 125 mL, this is premium cleanser territory, but the product is concentrated enough that a tube lasts three to four months of twice-daily use. On a per-wash basis, the cost becomes reasonable. Shiseido's legacy — Japan's oldest and largest cosmetics company, founded in 1872 — lends this a credibility that extends beyond marketing, and the InternalPowerResist technology represents genuine R&D investment.

This is a cleanser that rewards the right skin type handsomely. If you are oily or combination, if you appreciate Japanese botanical formulation, and if fragrance and SLS are not concerns for you, the Clarifying Cleansing Foam delivers a daily cleansing experience that is more thoughtful and more pleasurable than it strictly needs to be. For dry or sensitive skin, the botanical bells and whistles cannot compensate for a surfactant system that may be too aggressive.

Formula

The Science

The most scientifically interesting ingredient in this cleanser is Artemisia princeps leaf extract, commonly known as yomogi or Japanese mugwort. A 2017 study published in the International Journal of Molecular Sciences demonstrated that Artemisia princeps extract upregulates the expression of filaggrin and loricrin — two proteins critical to the skin barrier's structural integrity — via the AHR/OVOL1 pathway. This is particularly relevant in a cleansing context, where the surfactant system actively challenges the barrier. Having a botanical that supports barrier protein expression working alongside the cleansing agents represents thoughtful formulation design.

A separate 2016 study published in the International Journal of Molecular Sciences found that topical application of Artemisia leaf extract prevented epidermal hyperplasia and immune cell infiltration in a contact dermatitis model, suggesting genuine anti-inflammatory potential.

Kaolin's role as an oil-absorbing clay in skincare is well-documented. A 2023 study published in PMC assessed a clay-based face mask in 75 adults with oily and acne-prone skin over four weeks, finding significant improvement in comedones, sebum content, and skin evenness. While that study examined a leave-on mask rather than a rinse-off cleanser, the sebum-absorbing mechanism is the same.

The inclusion of sodium acetylated hyaluronate in a rinse-off product is an interesting formulation choice. This modified hyaluronic acid has been shown to have greater affinity for the stratum corneum compared to standard sodium hyaluronate, which theoretically allows it to deposit a hydrating film that persists even after rinsing. The clinical significance in a 60-second cleansing window is modest, but it represents an attempt to mitigate the dehydrating effects of the surfactant system.

References

1. Antioxidant Artemisia princeps Extract Enhances the Expression of Filaggrin and Loricrin via the AHR/OVOL1 Pathway — International Journal of Molecular Sciences (2017)
2. Anti-Inflammatory Effects of Artemisia Leaf Extract in Mice with Contact Dermatitis In Vitro and In Vivo — International Journal of Molecular Sciences (2016)
3. Comprehensive assessment of the efficacy and safety of a clay mask in oily and acne skin — PMC (PubMed Central) (2023)

Dermatologist Perspective

Dermatologists generally consider soap-based cleansers like this one to be effective for oily and combination skin but potentially problematic for dry or sensitive types. The alkaline pH inherent to saponified fatty acid systems can disrupt the skin's acid mantle, which board-certified dermatologists frequently cite as a concern for patients with compromised barriers. The inclusion of SLS, even at a low concentration, is something dermatologists commonly advise against for eczema and rosacea patients. However, the kaolin and botanical additions represent a more sophisticated approach to cleansing than standard soap-based foams, and dermatologists who practice in Japan may be more familiar with Shiseido's research-backed approach to incorporating traditional Japanese ingredients.

Guidance

This cleanser emerged from Shiseido's 2018 skincare line relaunch built around 25 years of research into skin immunity and Langerhans cell protection. The use of Kirishima Mineral Spring Water — sourced from a volcanic spring in Japan — reflects Shiseido's commitment to grounding luxury skincare in Japanese natural heritage.

About Shiseido Legacy Brand (20+ years)

Shiseido was founded in 1872 as Japan's first Western-style pharmacy and operates one of the world's largest cosmetic research facilities with approximately 600 researchers. The company has over 150 years of scientific expertise spanning pharmaceutical and cosmetic innovation.

Brand founded: 1872 · Product launched: 2018

Myth vs. Reality

Myth

Foaming cleansers are always bad for skin.

Reality

While some foaming cleansers can be harsh, this formula includes conditioning agents like rice germ oil, silk powder, and sodium acetylated hyaluronate to mitigate stripping. The issue is more about the specific surfactant system — this uses a soap-based (saponified fatty acid) system which is inherently more alkaline than syndets.

Myth

The squeaky-clean feeling means your face is properly clean.

Reality

That squeaky feeling often indicates the skin's natural lipid barrier has been disrupted. For oily skin this is tolerable, but for dry or sensitive skin it signals over-cleansing. Following with a hydrating toner immediately helps restore balance.

FAQ

Common Praise

"Leaves skin feeling clean, soft, and smooth without residue"

"A little product goes a long way with excellent lather"

"Effectively removes daily impurities and light makeup"

"Luxurious foam texture and cleansing experience"

"Skin looks clearer and more radiant over time"

Common Complaints

"Can feel drying and stripping, especially for dry skin types"

"Contains fragrance that some users find unpleasant"

"Squeaky clean feeling indicates over-cleansing for some"

"Contains SLS which is a known irritant"

"High price for a rinse-off cleanser"

Notable Endorsements

Dermatologist-tested per Shiseido

Appears In

best cleanser for oiliness best japanese cleanser best foaming cleanser best cleanser for large pores

Related Conditions

oiliness large pores dullness

Related Ingredients

kaolin artemisia princeps hyaluronic acid rice germ oil