Jeju Volcanic Pore Cleansing Foam

If K-beauty has a Mount Rushmore of cleansers, the Innisfree Jeju Volcanic Pore Cleansing Foam is carved into the basalt. Since 2012, this gray tube has sat in bathroom cabinets from Seoul to São Paulo, promising that volcanic rock from a UNESCO World Heritage island would somehow fix your pores. For most of that decade, the formula was straightforward: saponified fatty acids, volcanic ash microparticles, and the hope that porous mineral fragments could sponge up sebum better than a regular cleanser. It worked — mostly. It also stripped skin like it had something personal against your moisture barrier.

The 2023 BHA reformulation is a meaningful rethinking of what this product should be. The volcanic ash remains, but the formula now layers three exfoliating acids (salicylic acid, glycolic acid, and a clever lactic acid/glycolic acid copolymer for sustained release), zinc PCA for sebum regulation, and madecassoside for anti-inflammatory protection. This is no longer a cleanser that just washes oil away. It is a cleanser that dissolves pore congestion, smooths surface texture, calms the inflammation that comes with oily skin, and absorbs excess sebum — all in the sixty seconds it takes to lather and rinse.

The triple-acid system deserves closer examination because it is genuinely smart for a rinse-off product. The fundamental limitation of active ingredients in cleansers is contact time — thirty to sixty seconds is not enough for most actives to meaningfully penetrate. Salicylic acid partially sidesteps this because it is oil-soluble and has natural affinity for sebum-filled pores, allowing some pore penetration even in brief contact. The lactic acid/glycolic acid copolymer is the more interesting inclusion — this sustained-release form extends the exfoliating window, potentially continuing to work even as you rinse. Whether this delivers clinically meaningful exfoliation in a cleanser is debatable, but the formulation intent is more sophisticated than most foam cleansers attempt.

Zinc PCA addresses the upstream problem. Rather than just removing sebum after it reaches the skin surface, zinc PCA helps regulate sebum production at the cellular level. This is the difference between mopping a floor and fixing the leak — and combining both approaches in a single product gives oily skin a fighting chance on both fronts.

Madecassoside, a purified Centella asiatica active, is the formula's diplomatic gesture to skin that might object to triple-acid exfoliation. Its anti-inflammatory properties help soothe the potential irritation that BHA and glycolic acid can trigger, particularly on skin that is already inflamed from acne or congestion. Whether the concentration in a rinse-off product is sufficient for meaningful soothing is unclear, but its presence signals a formula designed with more nuance than the strip-and-go approach of the original.

The volcanic ash itself — Innisfree's signature ingredient — works through physical adsorption. The porous microstructure of Jeju volcanic rock creates a high surface area that absorbs oil on contact, like microscopic charcoal sponges. The scientific evidence for this specific mechanism is limited to the general principles of mineral adsorption rather than peer-reviewed skincare studies. Innisfree's own consumer testing claims 94 percent reduction in oiliness after one use in a 32-person study, but independent clinical validation of Jeju volcanic ash's superiority over other mineral-based cleansing agents does not currently exist. It works. Whether it works better than kaolin clay or bentonite is an open question.

The sensory experience is satisfying in the way that oily skin types crave. A small amount of the dense cream-colored paste whips into a voluminous, pillowy foam that feels substantial on the skin. The volcanic ash and silica particles provide a subtle grit — not scrubby, not harsh, just enough texture to feel like something is working beyond bubbles. Rinsing leaves skin immediately matte, clean, and tight. That tightness is the product's double-edged sword. For oily skin, it reads as thorough. For anything dryer than combination, it reads as stripping. The earlier formula tested at a pH around 7.6 — considerably above the skin's natural pH of 4.5 to 5.5 — and while the BHA version likely runs lower due to the added acids, the base of saponified fatty acids inherently pushes pH upward.

The fragrance is present and polarizing. Some users find it clean and fresh with an earthy mineral quality. Others find it perfumy and unnecessary in a product that touches your face for sixty seconds. For fragrance-sensitive skin, there is no fragrance-free version of this cleanser — it is a take-it-or-leave-it situation.

At fourteen dollars for 150 milliliters, the value is strong. A small amount generates substantial foam, and most users report three to four months of daily use from a single tube. For a pore-focused cleanser with BHA, dual AHAs, zinc PCA, and madecassoside, this undercuts most comparable products significantly.

The Innisfree Jeju Volcanic Pore Cleansing Foam has earned its iconic status not because volcanic ash is a skincare miracle, but because the brand kept iterating. The BHA version is the best this product has ever been — smarter about how it cleans, more considerate about what it leaves behind, and still accessible enough that the fourteen-dollar price tag does not make you think twice. For oily and combination skin that wants a thorough, satisfying cleanse with actual pore-clearing actives, this is the foam cleanser to beat in K-beauty.

Formula

The Science

The BHA reformulation of this cleanser brings established exfoliating science to a rinse-off format. Salicylic acid is the most studied BHA in dermatology, with oil-soluble properties that allow it to penetrate sebum-filled pores more effectively than water-soluble AHAs. Kligman and Kligman demonstrated in 1998 that salicylic acid produces desquamation of the stratum corneum and comedolysis — dissolving the dead cell and sebum plugs that cause blackheads and congestion. While most clinical studies use leave-on formulations, the oil-soluble nature of BHA provides some pore affinity even during brief cleanser contact.

Glycolic acid, the smallest AHA molecule, has well-documented evidence for improving skin texture and promoting cell turnover. The inclusion of a lactic acid/glycolic acid copolymer is a formulation innovation — copolymer forms of exfoliating acids release their active components more gradually than free acids, potentially extending the effective contact window in a rinse-off product. This controlled-release approach was developed to address the fundamental limitation of actives in cleansers.

Zinc PCA (zinc salt of pyrrolidone carboxylic acid) has evidence for sebum regulation. A study published in the International Journal of Cosmetic Science demonstrated that zinc PCA reduced sebum secretion rate in subjects with oily skin, working through inhibition of 5-alpha reductase activity. In this formula, it addresses the root cause of oiliness rather than merely its surface effects.

The Jeju volcanic ash works through physical adsorption — the porous microstructure of volcanic rock creates a high surface area for oil absorption. While the physical mechanism is well-understood in material science, peer-reviewed dermatological studies specifically validating Jeju volcanic ash in skincare do not currently exist. The closest analogous research involves bentonite and kaolin clays, which have demonstrated sebum absorption and pore-clearing properties in controlled studies published in the Journal of Cosmetic Dermatology.

Dermatologist Perspective

Board-certified dermatologists would view this cleanser as a reasonable option for oily and acne-prone skin that needs thorough cleansing, though they would note that the active ingredients have limited efficacy in a rinse-off format compared to leave-on treatments. The salicylic acid inclusion is directionally appropriate for pore-clearing, but dermatologists would typically recommend a leave-on BHA treatment for meaningful comedolytic effects. The formula's tendency to strip moisture makes it important to pair with appropriate hydrating products afterward. Dermatologists would likely recommend limiting use to once daily, particularly for patients using other active treatments like retinoids or prescription acne medications.

Guidance

Innisfree's volcanic line was born from Jeju Island's geology — the island's volcanic soil and rock formations are a UNESCO World Natural Heritage site, and Innisfree built an entire product range around its mineral-rich volcanic ash. The cleansing foam became one of K-beauty's most recognizable products globally, and the 2023 BHA reformulation was the brand's biggest update to the formula, adding chemical exfoliation to what was previously a purely physical approach.

About Innisfree Established Brand (5–20 years)

Innisfree's Volcanic line is the brand's second flagship alongside Green Tea, built on Jeju Island's volcanic geology. The cleansing foam has undergone three reformulations over 12 years, with the current BHA version adding chemical exfoliation to the original physical sebum-absorption concept. Innisfree operates under Amorepacific's R&D umbrella.

Brand founded: 2000 · Product launched: 2012

Myth vs. Reality

Myth

Volcanic ash can shrink your pores permanently.

Reality

Pore size is genetically determined and cannot be permanently changed by any topical product. Volcanic ash absorbs excess sebum, which makes pores appear temporarily smaller by reducing the oil that stretches them. Consistent use maintains this appearance, but skipping the product returns pores to their natural state.

Myth

The 'squeaky clean' feeling means the cleanser is working well.

Reality

That tight, squeaky feeling actually indicates the cleanser has disrupted your skin's acid mantle. While this foam is effective at oil removal, the tight sensation is a sign to immediately replenish moisture and may indicate the product is too stripping for your skin type.

FAQ

Common Praise

"Extremely effective at removing excess oil and leaving skin feeling clean"

"Rich creamy lather from a small amount — very economical"

"Noticeable reduction in blackhead appearance with consistent use"

"Pores look visibly smaller and cleaner after each wash"

"Sulfate-free formula still generates satisfying dense foam"

"Excellent value at $14 for 150 mL"

Common Complaints

"Can be drying and stripping, especially for dry or dehydrated skin"

"Fragrance is noticeable and may irritate sensitive skin"

"Skin can feel tight and dry after washing without immediate moisturizer"

"Some users find the blackhead removal claims overpromised"

"Original formula had a higher-than-ideal pH around 7.6"

Notable Endorsements

Sephora retailerPETA Beauty Without BunniesIconic K-beauty cleanser

Appears In

best cleanser for oiliness best cleanser for large pores best cleanser for blackheads best k beauty cleanser

Related Conditions

oiliness large pores blackheads acne texture

Related Ingredients

salicylic acid glycolic acid zinc centella asiatica