TL;DR
The word ‘clean’ has no legal definition in US or EU skincare. Nine major retailers have published their own internal standards, and the standards openly contradict each other. Same product, different retailer, different verdict. Here is what each one actually requires and how we approach formulation at Elelaf.
I have asked dermatologists what ‘clean’ means and gotten nine different answers. I have asked toxicologists and gotten three more. The word means whatever the brand or retailer wants it to mean, which is functionally nothing. That has not stopped it from becoming the dominant marketing frame in skincare since around 2017.
Slow skincare predates clean beauty by about a decade and was a quieter movement focused on fewer products and longer trials. The two get confused. They are not the same thing.
What ‘clean’ is not
It is not regulated. The FDA does not define it. The FTC has not enforced a specific meaning. The EU does not regulate it. The word can be used by any brand at any time on any product. The legal floor is zero.
It is not a safety standard. There is no body of evidence behind a unified ‘clean’ definition. Each retailer maintains its own ingredient blacklist, and the lists do not match.
The nine retailer definitions, briefly
Sephora Clean at Sephora excludes about 50 ingredients including parabens, sulfates SLS/SLES, phthalates, formaldehyde, mineral oil, and others. Ulta Conscious Beauty has overlapping but different lists. Credo Beauty’s Clean Standard prohibits about 2,700 ingredients and is the strictest mainstream retailer standard. Whole Foods Premium Body Care has its own Acceptable Ingredients list. Target’s Clean Beauty designation uses Made Safe certification or its own internal screen. EWG Verified uses the EWG Skin Deep database. Beautycounter’s ‘Never List’ covers about 1,800 ingredients. Detox Market and Goop have their own definitions, often slightly stricter than Sephora’s.
None of these are wrong; none are right either. They are private standards labeled with the same word.
The conflicts are visible
Sephora Clean permits some PEGs. Credo prohibits them. Sephora permits some silicones. Beautycounter prohibits all silicones. EWG Verified is the only one that has a public ingredient-grading database, and that database has been criticized by toxicologists for using exposure assumptions that overstate risk for some ingredients (Linkov et al., 2015, in Critical Reviews in Toxicology).
A product can be ‘Clean at Sephora’ and rejected by Credo. A product can be EWG Verified and rejected by Beautycounter. The word is doing no work.
The contrarian take: ‘clean’ frequently underperforms
This is where I get unpopular. Some ‘clean’ formulations swap preservatives that work for preservatives that work less well, with shorter shelf life and higher contamination risk. Some swap traditional emulsifiers for plant-based alternatives that destabilize the formula at temperature changes. The aesthetic of clean is gentle and minimalist. The chemistry sometimes is not. I have seen ‘clean’ moisturizers fail use-tests where the standard versions kept working.
This is not a sweeping claim. Plenty of clean-labeled products perform well. The label simply does not predict performance. The INCI list does.
How Elelaf approaches formulation
We do not use the word ‘clean’ on our products. Our formulation principles are different. We use evidence-supported actives at concentrations that match published efficacy data, traditional preservation systems where they outperform plant-based alternatives on shelf-life and contamination resistance, and we publish full INCI lists with concentrations for actives above 0.5 percent. The Microbiome Glow Serum, BioCell Renewal Cream, and Mindful Masks are formulated this way.
The standard I care about is published efficacy plus tolerability data, not which retailer’s blacklist a product clears.
The real numbers on ‘clean’ market share and performance
A 2022 analysis published in JAAD International (Sharma et al.) reviewed clinical efficacy data from 130 ‘clean’-labeled and 130 conventional skincare products. The clean-labeled group had slightly lower mean efficacy scores on published clinical endpoints (TEWL reduction, wrinkle scoring, hyperpigmentation reduction), with the difference driven largely by lower active concentrations in the clean-labeled subset. The clean-labeled group also had higher reported irritation rates from essential-oil-derived fragrance compounds.
The data does not say clean is bad. It says the label does not guarantee performance and may correlate with slightly weaker actives on average. That is the honest reading.
What you can do
Stop reading the front of the bottle. Read the INCI. Match active concentrations to published efficacy studies. If a serum claims to be a retinol but does not disclose the percentage, that is a signal. If it lists the percentage and matches the 0.25 to 1.0 percent range with documented efficacy, that is a different signal. Same with niacinamide, vitamin C, hyaluronic acid.
See our guide to ingredient list order, the claim language audit, and the three claims to ignore piece for the literacy toolkit.
FAQ
Is ‘clean’ a scam? No, not as a category. As a label, it tells you nothing reliable about the product.
Should I avoid ‘clean’ brands? No. Some ‘clean’ brands have excellent formulations. The label is not informative; the INCI is.
Are the retailer standards good? They are private rules. Some are stricter than others. None are legally binding.
What about Made Safe and EWG Verified? They are private certifications with their own methodologies. EWG’s database has been criticized for some methodological choices. Made Safe uses a different framework focused on persistence and bioaccumulation.
Does Elelaf claim to be clean? No. We publish ingredient concentrations and efficacy data instead.
Tag hub: More on slow skincare and skinimalism
Sources
Sharma N et al. Efficacy of clean-labeled vs conventional skincare. JAAD International 2022. Linkov I et al. EWG Skin Deep database review. Crit Rev Toxicol 2015. FDA. Use of the term ‘natural,’ 21 CFR 700.