Simply Clean

There's a particular kind of challenge in reviewing a skincare product that hasn't meaningfully changed since the George W. Bush administration. Simply Clean has been in the SkinCeuticals lineup since the early 2000s, when the dermatology-office cleanser conversation was very different from where it is today. The prevailing wisdom at the time was that oily and combination skin benefited from thorough sulfate-based cleansing with mild exfoliating acids to keep pores clear and skin texture smooth. Simply Clean was built to that philosophy and executed on it competently. The formula has barely changed since — and that's both the product's selling point and its ongoing problem.

The formula is a relatively traditional gel cleanser built around sodium laureth sulfate as the primary surfactant, supported by a cocktail of amphoteric co-surfactants including cocamidopropyl betaine and sodium lauroamphoacetate. Small amounts of glycolic acid and mandelic acid provide mild AHA activity — not enough to function as a dedicated acid treatment, but enough to contribute gentle keratolytic support across daily washing. Orange extract, ginseng, rosemary, and aloe provide the token botanical layer that aligns the product with SkinCeuticals' broader antioxidant brand positioning. The preservative system retains methylparaben and propylparaben, which is increasingly unusual in premium skincare but reflects the formula's age and formulation lineage.

In actual use, it functions well for its target audience. The clear gel pumps out in a small amount and foams modestly when worked into wet skin — not a luxurious dense lather, but enough to feel like something is happening. It removes sebum, sunscreen, and environmental debris thoroughly, leaving the skin feeling genuinely clean without the squeaky tight sensation that signals a cleanser has overstripped. Combination and oily skin users typically report that it pairs well with their subsequent serums and moisturizers, and that the mild AHA content contributes a subtle smoothing effect over weeks of consistent use. For its intended audience and intended purpose, this is a perfectly functional product.

Where the age shows is in the comparison to modern alternatives. The last ten years of cosmetic chemistry have produced a new generation of gentle surfactant systems — glucosides, sulfosuccinates, and amino-acid-based cleansers — that deliver thorough cleansing without the tightness or barrier disruption associated with sulfates. Brands like CeraVe, La Roche-Posay, and iS Clinical offer dermatology-tier gel cleansers with significantly gentler surfactant systems, paraben-free preservation, and often lower prices. The gap isn't necessarily enormous for users with resilient oily skin who have always tolerated sulfates just fine — but the calculus has shifted, and Simply Clean's formula no longer represents the state of the art in the category it competes in.

The honest limitations are mostly about positioning rather than performance. Forty-three dollars for eight ounces is fair by dermatology-cleanser standards, and a bottle lasts three to four months with twice-daily use, so the value math isn't unreasonable on its face. The issue is that the competition has moved, and users shopping in this price tier today have many options that feel more modern, more barrier-supportive, and better aligned with current cleansing philosophy. This cleanser is also not the right pick for sensitive, dry, eczema-prone, or rosacea-prone skin — the sulfate base and mild AHA content can push already-compromised barriers into further compromise, and gentler options serve those users better.

Board-certified dermatologists who still recommend Simply Clean tend to do so for combination or oily-skin patients already embedded in the SkinCeuticals ecosystem who want a cleanser that pairs seamlessly with their vitamin C and treatment serums from the same brand. It's also occasionally suggested for patients who specifically want a mild AHA cleanser and prefer the dermatology-office provenance of SkinCeuticals over newer niche brands. If you fit that profile, this is a functional option that will do what you expect. For most other users — particularly anyone building a new routine today or shopping for a dermatology-tier cleanser without brand loyalty — there are meaningfully better options in the current market that deserve consideration first.

Formula

The Science

Cleanser chemistry has evolved significantly in the last two decades, and Simply Clean's formulation reflects the state of the art from the early 2000s rather than the current generation of gentle surfactant systems. Sodium laureth sulfate, the primary surfactant here, is an ethoxylated variant of SLS that is generally milder than its non-ethoxylated parent but still sits on the more stripping end of the spectrum compared to modern glucoside-based or amino-acid-based surfactants. The supporting co-surfactants — cocamidopropyl betaine, sodium lauroamphoacetate, cocamidopropyl hydroxysultaine — are amphoteric surfactants that moderate the harshness of the SLES and improve the overall tolerance profile. The glycolic and mandelic acid additions provide mild keratolytic activity, but the short contact time of a rinse-off cleanser — typically 30-60 seconds — fundamentally limits how much exfoliation can actually occur. Research on cleanser-format acids suggests they contribute supplementary benefit but cannot replace leave-on acid treatments for meaningful exfoliating results. The botanical additions of orange, ginseng, rosemary, and aloe are included at low concentrations typical of cosmetic cleansers, where their actual skin-level effects are limited by the combination of low concentration and short contact time. The evidence base for cleanser-format antioxidants is thin because most of the active ingredient washes down the drain before meaningfully interacting with the skin. The preservative system — methylparaben and propylparaben — is well-established for safety at cosmetic concentrations, though modern formulations typically use alternative preservatives for consumer perception reasons.

Dermatologist Perspective

Dermatologists sometimes recommend Simply Clean for patients with combination or oily skin who are already using SkinCeuticals treatment products and want a cleanser that coordinates with their existing routine. Board-certified dermatologists appreciate that it provides thorough cleansing with a mild exfoliating element, which suits patients who want a slightly more active cleansing step than a purely gentle formula. However, many dermatologists have shifted toward recommending newer gentle cleansers from brands like CeraVe, La Roche-Posay, and EltaMD that offer barrier-supportive formulations for a broader range of patients. Dermatologists tend to steer patients away from Simply Clean when the skin is sensitive, dry, rosacea-prone, or barrier-compromised, and when a modern sulfate-free alternative would better serve the clinical picture.

Guidance

Simply Clean has been in the SkinCeuticals lineup since the early 2000s and represents the brand's original approach to cleansing: thorough, slightly exfoliating, and designed for the oily-to-combination dermatology patient who would follow it with the brand's vitamin C and treatment serums. The formula has remained largely unchanged even as the broader skincare industry has moved toward gentler, sulfate-free surfactant systems, which is part of why it now reads as a slightly older-generation product despite its continued availability.

About SkinCeuticals Established Brand (5–20 years)

SkinCeuticals was founded in 1997 on the antioxidant research of Dr. Sheldon Pinnell at Duke University. The brand's cleansers support its dermatology-office positioning by providing gentle cleansing vehicles for patients using the brand's more active treatment products.

Brand founded: 1997 · Product launched: 2002

Myth vs. Reality

Myth

SLES-based cleansers damage the skin barrier.

Reality

Sodium laureth sulfate is milder than sodium lauryl sulfate and is well-tolerated by most skin types in properly-formulated cleansers. Whether a specific SLES cleanser is appropriate depends on its full formulation, not the presence of the surfactant alone.

Myth

A cleanser with AHAs replaces an acid treatment.

Reality

The short contact time of a cleanser limits how much the acid can actually work on the skin. Cleanser AHAs provide mild supplementary activity but do not replace a dedicated leave-on acid treatment for texture, pigmentation, or exfoliation.

FAQ

Common Praise

"Thoroughly removes oil and debris"

"Leaves skin feeling genuinely clean"

"Slight exfoliation contributes to smoother texture"

"Pairs well with SkinCeuticals treatment serums"

Common Complaints

"Sulfate base feels stripping to some users"

"Contains parabens and SLES that many modern users prefer to avoid"

"Expensive for a cleanser"

"Not gentle enough for sensitive or dry skin"

Notable Endorsements

Longstanding dermatology-office cleanser for combination and oily skin patients

Appears In

best cleanser for oily skin best cleanser for combination skin best gel cleanser best cleanser with glycolic acid best skinceuticals cleanser

Related Conditions

oiliness large pores texture blackheads

Related Ingredients

glycolic acid mandelic acid aloe