Heartleaf Pore Clay Pack

There's a fundamental tension in clay masks that most brands ignore: the people who need pore-clearing the most — those with oily, acne-prone, congested skin — often have the most reactive, easily irritated skin underneath all that sebum. Traditional clay masks address the oil and leave the irritation as someone else's problem. Anua's Heartleaf Pore Clay Pack attempts to solve both sides simultaneously, and it mostly succeeds, with one conspicuous exception that we need to address up front.

This mask contains added fragrance. For a brand that has built its entire identity on fragrance-free, sensitive-skin-friendly formulations, this is a puzzling choice that undermines the trust Anua has carefully cultivated across the heartleaf line. The eucalyptus-adjacent scent is pleasant enough in isolation — it gives the mask a mild spa-like quality — but fragrance is a documented skin sensitizer, and its inclusion in a product specifically designed for congested, potentially reactive skin is hard to justify on scientific grounds. If you have fragrance sensitivities, this mask isn't for you, full stop. With that stated clearly, let's talk about everything else.

The dual-clay system is the foundation, and it's intelligently constructed. Kaolin at 20% and bentonite at 3.5% create a graduated absorption approach that avoids the all-or-nothing aggression of single-clay masks. Kaolin is the gentler partner — it absorbs oil steadily without aggressive stripping, providing a sustained matte effect that doesn't come with that papery, over-dried sensation. Bentonite is the deeper worker, with a layered crystal structure that swells and traps lipids and impurities from further within the pores. Together, they provide thorough pore clearing without the dry, tight, cracking sensation that bentonite-dominant masks inflict on skin that didn't ask for punishment.

Where this mask genuinely distinguishes itself is in what surrounds the clays. Houttuynia cordata extract at 10.1% delivers anti-inflammatory soothing during the masking process itself — not after, not as a suggested follow-up product, but embedded into the clay formula so that your skin is being calmed while it's being deep-cleaned. Centella asiatica extract adds its own well-documented calming pathway, creating a dual-botanical soothing system that works concurrently with the clay absorption. This is a fundamentally different experience from the typical clay-mask-then-scramble-for-moisturizer routine that most oily skin types know all too well.

The formula goes further still. Ceramide NP is an unusual and genuinely thoughtful inclusion in a clay mask — it helps replenish the lipids that the clays are actively pulling from the skin surface, providing real-time barrier protection during a process that traditionally compromises the barrier. It's like a contractor who demolishes and rebuilds simultaneously rather than leaving you without walls for a week. Panthenol adds wound-healing support and humectant hydration that prevents the dehydration rebound that follows most clay treatments. Sodium hyaluronate and hydrolyzed hyaluronic acid provide moisture from two molecular weights, ensuring the skin retains adequate hydration even as the clays do their absorbing work.

Palmitoyl tripeptide-5, a signal peptide that stimulates collagen production, adds an anti-aging dimension that elevates this beyond a simple pore-clearing product. It's not the star ingredient here — the concentration is modest — but it signals that Anua was thinking about skin quality holistically rather than just sebum removal. The protease enzyme adds enzymatic keratolysis, gently breaking down the keratin proteins that, along with sebum, form the plugs that enlarge and darken pores. It's a mild exfoliation that works selectively on dead protein, tackling a different aspect of pore congestion than the clays' physical oil absorption.

In use, the mask applies as a thick, smooth cream — markedly easier to spread evenly than traditional powdery clay masks that fight you the whole way across your cheeks. It sets to a semi-firm texture within a few minutes, enough to signal it's working but without the concrete-like rigidity that makes rinsing a test of patience. Five to ten minutes is the ideal window — long enough for the clays and enzyme to complete their work, short enough to avoid excessive dehydration that defeats the purpose of the barrier-protective additions.

After rinsing, skin feels immediately smoother. There's a satisfying matte finish without the papery tightness that signals over-stripping. Pores look visibly less congested, and the surface texture has a refined, almost polished quality that lasts a day or two before sebum production naturally resumes its baseline. With weekly use over a month, the cumulative effect is genuine — pores maintain a cleaner, more refined appearance, and the skin develops a smoother texture that becomes its new normal rather than a one-night improvement.

The limitations are straightforward. This mask is designed for oily and combination skin — dry skin types will find it too stripping even with the barrier-protective additions. Sensitive skin that reacts to fragrance should avoid it entirely, which is an unfortunate exclusion for a brand whose core audience includes fragrance-sensitive consumers. And the 100 mL tube, while lasting three to four months at weekly use, feels modest compared to the generous sizing of Anua's toners and lotions.

The fragrance issue genuinely matters because it's so out of character. Every other Anua heartleaf product reviewed here is fragrance-free. Consumers who've built trust in the brand's clean-ingredient philosophy will feel justified in being confused by this addition. The formula beneath the fragrance is excellent — genuinely one of the more thoughtful clay masks on the market. If Anua drops the fragrance in a future reformulation, this becomes an easy recommendation. Until then, it's a very good clay mask with one unnecessary compromise.

Formula

The Science

Kaolin and bentonite clays work through different mechanisms of oil absorption. Kaolin is a phyllosilicate mineral with moderate absorption capacity — research shows it adsorbs sebum through surface interaction without penetrating deep into the stratum corneum. Bentonite is a smectite clay with higher absorption capacity due to its layered crystal structure, which can swell and trap lipids and impurities between its layers. The combination provides both surface-level and deeper sebum removal.

The inclusion of protease enzyme adds a third cleansing mechanism — enzymatic keratolysis. Proteases break down the keratin proteins that, along with sebum, form the plugs that enlarge pores. This approach has been studied for its gentleness compared to chemical exfoliants, as it works selectively on dead protein rather than indiscriminately dissolving intercellular bonds.

Houttuynia cordata's anti-inflammatory activity through NF-kB pathway inhibition, documented in the 2022 PMC comprehensive review, provides meaningful soothing during the masking process. Ceramide NP's inclusion represents evidence-based barrier support — research confirms that topical ceramides help restore the lipid matrix that clay absorption can temporarily disrupt.

References

1. Pharmacological Effects of Houttuynia cordata Thunb (H. cordata): A Comprehensive Review — Journal of Ethnopharmacology / PMC (2022)

Dermatologist Perspective

Dermatologists frequently recommend clay masks for oily and acne-prone skin, noting that kaolin-based formulations are generally better tolerated than pure bentonite masks. Board-certified dermatologists appreciate the inclusion of ceramides and humectants in this formula, as these help prevent the barrier disruption that makes post-mask skin vulnerable to irritation. However, dermatologists would note the fragrance inclusion as a concern for patients with contact sensitivities — an ingredient that can trigger allergic contact dermatitis has limited justification in a therapeutic skincare product. For fragrance-sensitive patients, dermatologists would recommend alternative clay masks without added scent.

Guidance

Anua developed this clay mask to address a common complaint in the K-beauty community: clay masks that work for pores but wreck sensitive skin. By combining their signature heartleaf extract with dual clays and barrier-supportive ingredients, they attempted to make deep cleansing accessible to the skin types that typically can't tolerate it. The fragrance addition, however, is a puzzling departure from the brand's otherwise clean-ingredient philosophy.

About Anua Emerging Brand (2–5 years)

Anua was founded in 2019 by Korean brand incubator The Founders and has rapidly gained global traction through viral K-beauty channels. The brand's formulations center on Houttuynia cordata (heartleaf), a traditional East Asian botanical with emerging clinical evidence, though independent validation of Anua's specific products remains limited.

Brand founded: 2019 · Product launched: 2023

Myth vs. Reality

Myth

Clay masks permanently shrink pores.

Reality

Pore size is largely determined by genetics and sebum production. Clay masks temporarily reduce the appearance of pores by removing the sebum and debris that stretch them. With consistent weekly use, pores maintain a more refined appearance, but the effect requires ongoing maintenance.

Myth

You should leave clay masks on until they're completely dry and cracking.

Reality

Over-drying a clay mask pulls too much moisture from the skin, causing irritation and barrier damage. This mask should be removed after 5-10 minutes while still slightly damp for optimal sebum absorption without excessive dehydration.

FAQ

Common Praise

"Skin feels incredibly smooth and soft after use"

"Visibly reduces the appearance of pores"

"Creamy texture is easier to apply than traditional clay masks"

"Eucalyptus scent feels spa-like and refreshing"

"Doesn't dry out excessively compared to other clay masks"

Common Complaints

"Contains fragrance, inconsistent with the rest of the heartleaf line"

"Can be too drying for sensitive skin if left on too long"

"Eucalyptus scent is polarizing — some love it, others find it irritating"

"Price is moderate for a 100 mL clay mask"

Notable Endorsements

Part of Anua's expanding pore care line

Appears In

best clay mask for oily skin best k beauty pore mask best clay mask with ceramides

Related Conditions

large pores oiliness blackheads acne texture

Related Ingredients

houttuynia cordata centella asiatica ceramides peptides