Clean skincare refers to products formulated without ingredients that consumers or brands consider potentially harmful, with an emphasis on ingredient transparency and safety. There is no legal or regulatory definition of “clean” in the United States, which means the term can mean different things depending on which brand, retailer, or certification program is using it. Understanding what clean skincare actually involves, and where it falls short, helps you make smarter choices at the shelf.
Why “Clean” Has No Official Definition
The FDA does not define “clean” as a category for cosmetics or skincare. Unlike terms such as “organic” in the food industry, which carry enforceable federal standards, “clean” is a marketing term that brands apply to their own products based on their own internal criteria. One brand might ban 50 ingredients, another might ban 2,000, and both can call themselves clean.
What most clean skincare brands share is a commitment to leaving out certain categories of ingredients: synthetic fragrances, parabens, phthalates, formaldehyde-releasing preservatives, sulfates, and certain types of silicones. Beyond that shared core, the specifics vary widely. Some brands also exclude all synthetic dyes, petroleum-derived ingredients, or anything not sourced from plants. Others take a less restrictive approach, focusing only on ingredients with documented safety concerns.
Clean vs. Natural vs. Organic
“Clean,” “natural,” and “organic” are often used interchangeably, but they describe different things. Natural skincare typically means the product contains ingredients derived from plants, minerals, or other non-synthetic sources. Organic skincare goes a step further, requiring that those natural ingredients were grown without synthetic pesticides or fertilizers, usually verified by a certifying body like the USDA.
Clean skincare doesn’t necessarily mean natural or organic. A clean product can contain synthetic ingredients, as long as those synthetics aren’t on the brand’s exclusion list. The focus is less on where the ingredient comes from and more on whether it’s considered safe. A product could be 100% natural and still not qualify as “clean” by some standards if it contains a naturally derived ingredient that a particular brand flags as irritating or allergenic. Harvard Health Publishing notes that clean beauty products are often “based on botanical ingredients, with no synthetic preservatives,” but this is a tendency, not a rule.
The Ingredients Clean Brands Avoid
The most commonly excluded ingredients in clean skincare include parabens (used as preservatives), phthalates (used as solvents or to make fragrances last longer), formaldehyde donors, synthetic fragrances, and certain petroleum-derived compounds. The rationale is usually that these ingredients may disrupt hormones, irritate skin, or accumulate in the body over time.
The science here is more nuanced than most clean beauty marketing suggests. The FDA’s position on phthalates, for example, is that “at the present time, the FDA does not have evidence that phthalates as used in cosmetics pose a safety risk.” The Cosmetic Ingredient Review Expert Panel has twice concluded that the most common phthalates in cosmetics are safe at current exposure levels. A National Toxicology Program panel similarly concluded that reproductive risks from cosmetic-level phthalate exposure were minimal.
That doesn’t mean concerns are baseless. Some of these ingredients have shown effects in animal studies at much higher doses than what you’d encounter in a face cream, and the worry for some researchers is about cumulative exposure from dozens of products used daily over years. The honest answer is that the dose matters enormously, and the gap between what’s been proven harmful and what clean beauty brands exclude is often wider than their marketing implies.
How Third-Party Certifications Work
Because there’s no government standard for “clean,” third-party certifications have stepped in to fill the gap. The most recognized in the U.S. is EWG Verified, run by the Environmental Working Group. To earn the EWG Verified mark, a product must score “green” (the lowest hazard rating) in EWG’s Skin Deep database. It cannot contain any ingredient on EWG’s “Unacceptable” list, which flags ingredients with health, environmental toxicity, or contamination concerns, or any ingredient on their “Restricted” list that doesn’t meet limits set by authoritative bodies.
Manufacturers also have to follow good manufacturing practices, report adverse events to both the FDA and EWG, and agree to random product testing. It’s one of the more rigorous programs available, though it reflects EWG’s own risk assessments, which are sometimes more conservative than the FDA’s or mainstream toxicology consensus.
Other certifications to look for include COSMOS (widely used in Europe for organic and natural cosmetics), MADE SAFE, and Leaping Bunny (which certifies cruelty-free status rather than ingredient safety). Each program has its own criteria, so two certified products may follow very different rules.
The Preservative Trade-Off
One of the most practical consequences of going clean is what happens when you remove synthetic preservatives. Parabens are extremely effective at preventing bacterial and fungal growth in water-based products like serums, lotions, and creams. The alternatives, which often include plant-derived compounds, essential oils, or fermentation-based preservatives, generally don’t offer the same level of protection.
This means clean skincare products often have shorter shelf lives. Natural preservative systems are more sensitive to temperature changes, and plant-based ingredients like shea butter and botanical oils, while beneficial for the skin, don’t inhibit bacteria on their own. If you use clean products, pay closer attention to expiration dates and storage conditions. A product that would last 24 months with traditional preservatives might only remain stable for 6 to 12 months without them. Contamination risk also increases once you open the product and introduce bacteria from your fingers.
New U.S. Regulations Raising the Bar
The Modernization of Cosmetics Regulation Act (MoCRA), signed into law in late 2022, represents the most significant update to U.S. cosmetics regulation in decades. Under MoCRA, manufacturers and processors must register their facilities with the FDA and renew that registration every two years. Companies must also list each marketed cosmetic product with the FDA, including a full ingredient list, and update that listing annually.
The FDA now has the authority to suspend a facility’s registration if a product manufactured there has “a reasonable probability of causing serious adverse health consequences or death.” Once suspended, that facility cannot distribute or sell cosmetics in the United States. These rules apply to all cosmetics, not just those marketed as clean, but they address exactly the kind of transparency and safety oversight that clean beauty advocates have long demanded. Small businesses are exempt from some requirements, though products that contact mucous membranes (like eye products) or are intended for internal use still must comply regardless of company size.
What Clean Skincare Gets Right
The clean skincare movement has genuinely improved the industry in several ways. Consumer demand for transparency has pushed brands, including legacy companies, to voluntarily reformulate products, disclose sourcing practices, and simplify ingredient lists. The global clean beauty market is projected to reach roughly $12.4 billion by 2026, with clean skincare alone accounting for about 46% of that market. That kind of spending power has made ingredient transparency a competitive advantage rather than a niche concern.
Where clean skincare serves you best is as a framework for paying attention. Reading ingredient labels, understanding what’s in the products you put on your skin every day, and choosing brands that are transparent about their formulations are all genuinely useful habits. The limitation is treating “clean” as a binary, where anything on the approved list is safe and anything excluded is dangerous. Skin is individual, reactions are personal, and a well-preserved conventional moisturizer may serve your skin better than a preservative-free clean one that goes rancid in your bathroom cabinet.
The most practical approach is to look for specific certifications when they matter to you, read ingredient lists rather than relying on front-of-package claims, and remember that “clean” is a philosophy, not a regulated standard.