Ceramic Slip Clay Cleanser

The original Ceramic Slip Clay Cleanser, launched alongside Sunday Riley's brand in 2009, was a product people fell in love with for the wrong reasons. Not wrong exactly — the complex blend of neroli, black pepper, frankincense, jasmine, and sandalwood essential oils created a cleansing experience that felt like an aromatherapy session. People raved about the scent, the ritual, the feeling that washing their face was a moment of self-care rather than a chore. Then, around 2018, Sunday Riley reformulated it. The essential oils were stripped out. The surfactant system was softened. The product that emerged was objectively gentler and safer for a wider range of skin types. And the internet was furious.

The reformulation backlash is a case study in the gap between what feels luxurious and what's actually good for your skin. The original formula's essential oils — while beautiful-smelling — were documented sensitizers that could cause irritation, photosensitivity, and contact dermatitis over time. The new formula replaced that sensory indulgence with functional ingredients: rice oil esters and olive oil esters that protect the barrier, a more delicate surfactant system, and a minimal-scent profile. It's a better cleanser. But it lost its personality.

What remained through the reformulation — and what makes Ceramic Slip genuinely interesting — is the dual clay system. Kaolin and montmorillonite (French green clay) work on different aspects of pore purification. Kaolin is the gentle one: it absorbs surface sebum without the intense drying that bentonite or activated charcoal produces. Montmorillonite goes deeper, with a high adsorption capacity that pulls impurities from within pores. Together, they provide a meaningful purification effect in a daily-use format — something that most clay products, designed as weekly masks, don't offer.

The surfactant system is where the formulation sophistication shows. Instead of a single surfactant doing all the work (and potentially doing damage), Ceramic Slip distributes cleansing across multiple gentle molecules: Sodium Cocoyl Isethionate (one of the mildest surfactants available), Disodium Laureth Sulfosuccinate, Sodium Methyl Cocoyl Taurate, and Sodium Lauroamphoacetate. This multi-surfactant approach means each individual molecule is working at a lower effective concentration, reducing the irritation potential of any single compound. The pH of 5.0 — close to the skin's natural acid mantle — reinforces the gentle approach.

The barrier-protection layer is what elevates this above a typical clay cleanser. Phospholipids are skin-identical lipids that the cleanser deposits as it removes surface impurities. Rice oil and olive oil esters add emollient conditioning during the wash. Bisabolol — a chamomile-derived anti-inflammatory that's been shown to inhibit pro-inflammatory cytokines TNF-alpha and IL-6 — provides an active soothing effect. The overall design philosophy is clear: extract what doesn't belong (excess oil, dirt, pollution) while preserving what does (the skin's lipid barrier, its acid mantle, its hydration).

In practice, the experience is quiet and effective. The cleanser has a creamy, slightly viscous gel texture that produces minimal lather — more of a silky wash than a foam. If you're accustomed to the satisfying suds of a sulfate cleanser, this will initially feel under-powered. It isn't. The clays and surfactants are working; they're just doing it without the theatrical foam. After rinsing, skin feels genuinely clean — no residue, no film — and notably soft. The absence of tightness is the tell that the barrier-protection strategy is working.

For an extra purification boost, the cleanser can be applied to dry skin and left for one to two minutes as a short-contact mask before rinsing. This gives the clays additional contact time to draw out deeper impurities, and the gentle formulation means this doesn't produce the parched, tight-skinned aftermath of a traditional clay mask.

There's one ingredient that deserves disclosure: Methylisothiazolinone (MI) appears in the ingredient list. MI is a well-documented contact allergen that the EU has banned from leave-on cosmetic products. In a rinse-off cleanser like this, the exposure time is brief (30-60 seconds typically), which significantly reduces the sensitization risk. Dermatological guidance generally considers MI acceptable in rinse-off products at low concentrations. But for anyone with known MI sensitivity or a history of contact dermatitis, its presence is worth knowing about.

The packaging — a white squeeze tube — is functional but prone to leaking due to the slippery formula consistency. Several reviewers mention needing to double-check that the cap is properly sealed. It's a minor annoyance that doesn't affect the product itself but does affect the experience of living with it in your bathroom.

At $35 for five ounces, Ceramic Slip costs roughly $7 per ounce. For a rinse-off cleanser — a product that literally goes down the drain — this is a premium price point. The gentle surfactant system, dual clay purification, and barrier-protective ingredients justify some premium over a basic drugstore cleanser, but the gap is significant. Two to three months of twice-daily use is a reasonable lifespan for the tube, putting the monthly cost at roughly $12-18.

Ceramic Slip occupies a specific niche: the daily clay cleanser for people who want pore purification without barrier damage. It's not trying to be a deep-cleaning mask. It's not trying to be a makeup remover. It's trying to be the cleanser that keeps oily and combination skin clear and balanced day after day, without creating the problems (dehydration, barrier disruption, reactive oiliness) that aggressive cleansers cause. In that specific role, it's genuinely well-designed.

Formula

The Science

The dual clay system in Ceramic Slip leverages two complementary mineral technologies. Kaolin is a hydrated aluminum silicate clay with relatively low cation exchange capacity, making it a gentle absorbent that removes surface sebum without aggressively pulling moisture from the skin. Montmorillonite (the primary component of French green clay) has a higher adsorption capacity due to its layered crystalline structure, which creates a large surface area for binding toxins, heavy metals, and inflammatory mediators. A 2024 PMC review on calcium montmorillonite documented its ability to bind these substances at the skin surface without systemic absorption.

A 2023 study published in Skin Research and Technology evaluated kaolin-containing facial cleansing formulations and found a 46-66% reduction in comedones by week 4, 69% reduction in sebum immediately post-treatment, 30% improvement in hydration, and 20% decrease in transepidermal water loss. These results support the use of kaolin in daily cleansing products, particularly the finding that hydration improved — suggesting the formulation's barrier-protective ingredients were working.

Bisabolol, the chamomile-derived soothing agent in the formula, has a robust evidence base for anti-inflammatory activity. A 2014 study published in Current Pharmaceutical Biotechnology (Maurya et al.) demonstrated that alpha-bisabolol dose-dependently inhibited production of TNF-alpha and IL-6 — two key pro-inflammatory cytokines — and reduced TPA-induced inflammation in a mouse model. A comprehensive 2022 review in Molecules confirmed bisabolol's anti-inflammatory, antimicrobial, and wound-healing properties across multiple experimental models.

The surfactant system warrants specific attention. Sodium Cocoyl Isethionate is classified as one of the mildest surfactants in cosmetic chemistry — clinical studies have consistently shown it produces significantly less barrier disruption than sodium lauryl sulfate at comparable cleansing efficacy. The multi-surfactant approach (combining SCI with Disodium Laureth Sulfosuccinate and Sodium Methyl Cocoyl Taurate) distributes the cleansing load, reducing the effective concentration of each individual surfactant and thereby minimizing potential irritation.

References

1. Comprehensive assessment of the efficacy and safety of a clay mask in oily and acne skin — Skin Research and Technology (2023)
2. Alpha-(-)-bisabolol reduces pro-inflammatory cytokine production and ameliorates skin inflammation — Current Pharmaceutical Biotechnology (2014)

Dermatologist Perspective

Board-certified dermatologists generally support the use of gentle clay-based cleansers for oily and combination skin types, noting that the key differentiator between beneficial and harmful clay products is the surrounding formulation. A clay cleanser with barrier-protective lipids and gentle surfactants at appropriate pH — which Ceramic Slip provides — can help manage sebum production and pore congestion without triggering the rebound oiliness that harsh cleansers cause. Dermatologists would note the Methylisothiazolinone with awareness but generally consider it acceptable in rinse-off products at low concentrations, while acknowledging that patients with known MI sensitivity should avoid it. The pH of 5.0 is viewed favorably — cleansers with pH above 7 can disrupt the acid mantle and increase susceptibility to bacterial colonization.

Guidance

Ceramic Slip was one of Sunday Riley's first products, launching alongside the brand in 2009. The name references the liquid clay ('slip') used in ceramics to create smooth, refined surfaces — a metaphor for what the cleanser does to pores. The original formula featured a complex essential oil blend that earned a devoted following, but a 2018 reformulation removed most essential oils in favor of a gentler, more inclusive formulation. Long-time fans were divided, but the reformulation aligned with the industry's move away from fragrant essential oils in skincare.

About Sunday Riley Established Brand (5–20 years)

Sunday Riley was founded in 2009 by cosmetic chemist Sunday Riley in Houston, Texas. Ceramic Slip was one of the brand's original launch products and has been reformulated at least once (around 2018). The brand holds PETA and Leaping Bunny certifications and B Corporation status, though the 2020 FTC fake review settlement remains a relevant brand context.

Brand founded: 2009 · Product launched: 2009

Myth vs. Reality

Myth

Clay cleansers are too drying for daily use.

Reality

That's true for many clay masks and pure clay washes, but Ceramic Slip was specifically formulated to counteract clay's drying potential. The phospholipids, rice oil esters, and olive oil esters replenish the lipid barrier while the clays draw out excess sebum. The result is purification without dehydration — though very dry skin types may still want to follow with a hydrating toner.

Myth

A cleanser that doesn't foam much isn't cleaning effectively.

Reality

Foam volume is primarily a function of surfactant type, not cleaning power. The sulfate-free surfactants in Ceramic Slip (Sodium Cocoyl Isethionate, Disodium Laureth Sulfosuccinate) produce minimal lather but effectively dissolve oil and debris. Sulfate-heavy cleansers foam dramatically but often damage the skin barrier in the process.

FAQ

Common Praise

"Removes dirt and oil effectively without leaving skin feeling stripped or tight"

"Skin feels genuinely soft and smooth after rinsing"

"Pores appear visibly smaller with consistent daily use"

"Gentle enough for daily use without disrupting the skin barrier"

"Versatile — works as both a daily cleanser and a short-contact mask"

Common Complaints

"Reformulation disappointed fans of the original essential oil-scented version"

"Premium price of $7 per ounce is steep for a rinse-off cleanser"

"Slippery viscous texture can leak from the packaging"

"Not effective at removing heavy sunscreen or waterproof makeup alone"

"Some users with oily skin paradoxically report dryness after use"

Notable Endorsements

Listed in Sunday Riley's 'Award-Winning Skincare' collectionB Corporation certified brand

Appears In

best clay cleanser best cleanser for oily skin best gentle cleanser for pores best sulfate free cleanser

Related Conditions

oiliness large pores acne dullness

Related Ingredients

chamomile