By: Natalie Copeland, NP, and Beth Higney, NP, Co-Founders of Complexion Nashville
Clean skincare is one of the most searched terms in beauty right now, and one of the least understood. The phrase shows up on packaging, in marketing campaigns, and across social media feeds. But what does “clean skincare” mean? Is there a legal definition? A scientific standard? And how do you know if the products in your routine qualify?
We are nurse practitioners with more than 30 years of combined clinical experience in advanced cosmetic dermatology. We built CMPLXN because we saw a gap between what our patients needed and what was available to them. We wanted formulations that met the same standards we trusted in our treatment rooms: effective, evidence-based, and free from the ingredients we spent our careers advising people to avoid.
This is the guide we wish had existed when we started developing our line. It covers what clean skincare means in practice, which standards truly mean something, and how to evaluate any product on your shelf.
There Is No Legal Definition of "Clean" in the U.S.
In the United States, the FDA does not regulate the term "clean" in skincare or cosmetics. There is no federal standard, no required testing, and no certification process a brand must complete before putting "clean" on its label.
The FDA regulates cosmetics under the Federal Food, Drug, and Cosmetic Act, but its regulations focus on safety and labeling accuracy rather than ingredient philosophy. A product can be labeled "clean" whether it contains five ingredients or fifty-five. The word carries no enforceable meaning.
This is not the case everywhere. The European Union takes a fundamentally different approach to cosmetic ingredient safety.
How EU Cosmetic Standards Compare to U.S. Regulations
The EU Cosmetics Regulation (EC 1223/2009) is one of the strictest cosmetic safety frameworks in the world. It bans or restricts over 1,600 ingredients from use in cosmetic products. The U.S., by comparison, restricts roughly 11.
That gap means that formulations developed under EU standards automatically exclude hundreds of ingredients that are still legal and widely used in American skincare, including certain preservatives, plasticizers, UV filters, colorants, and fragrance compounds that European regulators have determined pose potential risks to human health.
When we started developing our skincare line in 2020, we chose a lab in Canada specifically because Canadian regulations align more closely with European standards than American ones. The lab excluded ingredients by default, which we would have needed to specifically request for removal at a U.S. facility. That decision shaped every formula we have made since.
We also attend aesthetic and regenerative medicine conferences in Europe regularly. European labs are often ahead of the FDA on both ingredient innovation and safety research. What European formulators consider standard practice sometimes takes years to reach the U.S. market. That exposure shaped how we approach formulation, and why EU-level standards became the baseline we set for ourselves, right here in Nashville.
The Credo Clean Beauty Standard
Beyond government regulation, third-party standards offer another layer of accountability. The Credo Clean Standard is one of the most recognized in the industry. Credo maintains a restricted-substances list of more than 2,700 ingredients, and every product sold on the Credo platform must be fully compliant.
The Credo standard goes further than most "clean" claims. It evaluates not only what a product excludes, but also what it includes. Ingredients must meet safety thresholds for human health and environmental impact. Brands must provide full ingredient transparency, and formulations are reviewed on an ongoing basis as new research emerges.
CMPLXN products are formulated by the Credo Clean Beauty Standards. That means every ingredient in the CMPLXN Clean Line has been evaluated against one of the most comprehensive restricted substance lists in the industry. When we say clean, we want to point to something specific and verifiable.
What "Free From" Means
Most clean skincare brands lead with a "free from" list, and you have probably seen these claims before, like “Paraben-free. Sulfate-free. Fragrance-free.” These labels can be helpful, but only if you understand the impact of these ingredients.
Parabens are a class of preservatives (methylparaben, propylparaben, butylparaben, and others) used to prevent bacterial growth in cosmetic products. Research published in the Journal of Applied Toxicology has raised questions about their potential to mimic estrogen in the body. The EU restricts certain parabens and limits concentrations of others. Many U.S. brands continue to use them freely.
Sulfates (sodium lauryl sulfate, sodium laureth sulfate) are cleansing agents that create lather. They are effective at removing oil and debris, but they can also strip the skin's moisture barrier, leading to dryness, irritation, and increased sensitivity. For anyone with reactive or post-procedure skin, sulfates are particularly problematic.
Phthalates are plasticizers commonly used to stabilize fragrance in cosmetic products. The phthalates that have raised the most concern in research are already banned in EU cosmetics and increasingly restricted at the state level in the U.S. The one still found in many American products, diethyl phthalate (DEP), is considered lower risk, though the FDA notes that research into cumulative exposure is ongoing. For consumers who prefer to avoid them entirely, choosing fragrance-free products or products formulated under EU standards removes the guesswork.
Artificial fragrances are one of the most common sources of skin irritation in cosmetic products. The term "fragrance" or "parfum" on an ingredient list can represent dozens of individual chemical compounds, many of which brands are not required to disclose. For sensitive or reactive skin, fragrance is often the first ingredient a dermatologist will recommend eliminating.
Mineral oil and PEGs (polyethylene glycols) are petroleum-derived ingredients commonly used as emollients and emulsifiers. While they are generally considered safe at regulated concentrations, they are excluded from most clean formulations because of their petrochemical origin and the potential for contamination during manufacturing.
CMPLXN products are free from artificial fragrances, mineral oil, sulfates, parabens, harsh chemicals, PEGs, and BHA. But the "free from" list is the floor, not the ceiling. What matters equally is what goes into the formula and how those ingredients are sourced, tested, and combined.
Understanding clean skincare means learning to evaluate products for yourself. Here is a practical framework.
Start with the ingredient list. Ingredients are listed in descending order of concentration. The first five to seven ingredients make up the bulk of the formula. If you do not recognize something, that does not automatically mean it is harmful. Many effective, well-studied ingredients have technical names. Niacinamide, hyaluronic acid, and retinyl palmitate all sound clinical but are well-established in dermatological research.
Look for third-party verification. Certifications from organizations like Credo, the Environmental Working Group (EWG), or the EU's cosmetic safety framework provide external accountability. These are not perfect systems, but they represent a level of scrutiny that goes beyond what any brand can self-certify.
Check the EWG Skin Deep database. The EWG Skin Deep database allows you to search individual ingredients or scan entire products and see a hazard rating from low to high. It is a useful starting point, especially for identifying ingredients that may warrant further research.
Ask about formulation standards. If a brand claims to be clean, ask which standard they are following. Is it their own internal definition? A third-party framework? An international regulatory standard? The specificity of the answer tells you how seriously the claim should be taken.
What Clean Skincare Means at Complexion Nashville
We developed CMPLXN in 2019, sourcing packaging from Italy and formulating with a Canadian lab that followed EU-aligned standards. Every product in the CMPLXN Clean Line is formulated to the Credo Clean Beauty Standards and meets EU cosmetic safety thresholds. Our line is free from parabens, sulfates, phthalates, artificial fragrances, mineral oil, PEGs, BHA, alcohols, and artificial color dyes.
How to Build a Clean Skincare Routine
If you are evaluating your current routine against clean standards or building one from scratch, the process is straightforward.
Audit what you have. Pull out your current products and check ingredient lists against the EWG database or the Credo restricted substance list. You may find that some products you assumed were clean contain ingredients you would prefer to avoid.
Start with the basics. A clean skincare routine does not need to be complicated. A cleanser, a treatment serum, a moisturizer, and SPF cover the essential steps for most skin types. Prioritize quality over quantity. Fewer products with better formulations will always outperform a ten-step routine built on questionable ingredients.
Choose products backed by credentials. Look for formulations developed by licensed practitioners, tested against recognized safety standards, and transparent about every ingredient. The products that earn your trust should also be able to explain exactly why they deserve it.
Protect your skin every morning. SPF is non-negotiable in any skincare routine. A mineral sunscreen that uses zinc oxide or titanium dioxide as its active ingredient offers broad-spectrum protection.
Frequently Asked Questions About Clean Skincare
What does clean skincare mean?
Clean skincare refers to products formulated without ingredients considered potentially harmful to human health. Because there is no legal definition in the U.S., the meaning varies by brand. The most credible clean skincare brands align with established third-party standards like the Credo Clean Beauty Standard or EU cosmetic safety regulations.
Is clean skincare the same as natural skincare?
No. Clean skincare focuses on safety and ingredient transparency, not ingredient origin. A product can be clean without being entirely plant-based or natural. Effective clean formulations often include lab-synthesized ingredients like niacinamide, hyaluronic acid, and retinyl palmitate that are both safe and well-studied.
Is clean skincare actually better for your skin?
Clean skincare eliminates ingredients linked to irritation, sensitivity, and potential long-term health concerns. For people with reactive skin, post-procedure skin, or a preference for products that meet stricter safety standards, clean formulations can make a meaningful difference in both comfort and results.
How do I know if a skincare product is truly clean?
Look for specificity. A credible clean skincare brand will tell you which standard it follows (Credo, EWG, EU regulations, or another recognized framework), provide full ingredient transparency, and be able to explain why each ingredient is included.
What is the difference between EU skincare standards and U.S. standards?
The EU bans or restricts over 1,600 cosmetic ingredients. The U.S. restricts approximately 11. This means products formulated under EU standards automatically exclude hundreds of substances that are still permitted in American skincare. Choosing products that meet EU-level standards offers a higher baseline of ingredient safety.
Does "fragrance-free" mean a product is clean?
Not necessarily. Fragrance-free means the product does not contain added fragrance, but it does not guarantee the absence of other ingredients that a clean formulation would exclude. Fragrance-free is one component of clean, not a synonym for it.
Complexion Nashville is a clinical aesthetic practice and skincare brand founded by Natalie Copeland, NP, and Beth Higney, NP. CMPLXN Clean Line products are formulated to the Credo Clean Beauty Standards and meet EU cosmetic safety thresholds. Shop the full CMPLXN line.
