Clean Beauty Claims Explained: What ’Clean’, ’Non-Toxic’ and ’Free-From’ Really Mean in the UK

What does "clean beauty" mean?

Legally, nothing. "Clean", "non-toxic", "natural" and "chemical-free" are not defined in UK or EU cosmetics law. Each brand or retailer sets its own rules, usually a list of ingredients it chooses to leave out. Two "clean" products can therefore have opposite ingredient philosophies, and a product without the label can be just as low-exposure. The useful question is not "is it clean?" but "what exactly has been left out, and does the evidence say that matters?"

What rules do all UK cosmetics already follow?

In Great Britain, cosmetics are governed by retained Regulation (EC) No 1223/2009 as amended for GB, enforced by the Office for Product Safety and Standards (OPSS). According to GOV.UK:

• Every product needs a Responsible Person based in the UK.
• Its safety must be checked by a qualified safety assessor before sale.
• Ingredients must comply with lists of banned and restricted substances, and substances classed as carcinogenic, mutagenic or toxic to reproduction (CMR) are prohibited, with narrow exemptions.
• Nano ingredients must be labelled (nano) and products must be notified before sale.
• Labels and adverts "must not imply they have characteristics or functions which they do not have", and the Responsible Person must be able to prove marketing claims.

The EU version is Regulation (EC) No 1223/2009. Since Brexit, the two systems have started to drift, so a restriction adopted in the EU does not automatically apply in Great Britain.

Are "free from" claims allowed?

Yes, with limits. The EU's common criteria for cosmetic claims (Regulation (EU) No 655/2013) require claims to be legally compliant, truthful, supported by evidence, honest, fair and allow informed decisions. In practice, these criteria are generally applied as follows:

• A "free from" claim should not imply that a permitted ingredient is harmful, and should not be used for something that is banned anyway (for example, "free from" a substance that no cosmetic can legally contain).
• Claims should not denigrate competitors or legal ingredients.

In the UK, the Advertising Standards Authority's CAP advice says marketers must hold proof before implying a product is absolutely safe or guaranteed to work, "even if a product is 'natural' or omits an ingredient in common use", and that "natural" should be limited to ingredients that have undergone minimal processing (CAP advice, beauty and cosmetics).

"Chemical-free" is never accurate. Water, zinc oxide and plant oils are all chemicals. The phrase signals marketing, not formulation quality.

What do regulators say about parabens?

Parabens are preservatives that stop bacteria and mould growing in water-based products. Some can weakly mimic oestrogen in laboratory tests, which drove the "paraben-free" trend. The EU's Scientific Committee on Consumer Safety (SCCS) has reviewed them repeatedly. In its 2023 opinion it concluded butylparaben is safe as a preservative at up to 0.14%, while noting that safety concerns for young children could not be fully excluded without child-specific data (SCCS, butylparaben). Several longer-chain parabens have been banned in the EU, while methyl- and ethylparaben remain permitted.

The trade-off: a "paraben-free" product still needs a preservative, and replacements such as methylisothiazolinone have caused waves of allergic reactions in the past. "Paraben-free" alone is not a reason to choose a product.

What do regulators say about fragrance?

This is where the evidence is strongest. The SCCS has identified a long list of fragrance chemicals that are established contact allergens in humans (SCCS opinion on fragrance allergens). European population research links exposure to scented leave-on products with fragrance allergy (EDEN Fragrance Study).

Under 1223/2009, listed fragrance allergens must be named on the label when present above 0.001% in leave-on products or 0.01% in rinse-off products. The EU then expanded that list with Regulation (EU) 2023/1545, phased in over the following years. Essential oils count: lavender and citrus oils contain linalool and limonene, which is why "natural" products can carry long allergen lists.

If you are going to drop one ingredient category for lower exposure, fragrance (including essential oils) has the best evidence behind it.

What about sunscreen filters?

The SCCS reviewed benzophenone-3 in 2021 and set lower limits for body sunscreens, calling the evidence on hormone disruption inconclusive (SCCS, benzophenone-3). Mineral filters (zinc oxide and titanium dioxide) are a reasonable way to lower exposure to filters still under review, without giving up sun protection. Our mineral sunscreen guide lists UK options that use only these filters.

Are "organic" and "natural" certifications meaningful?

They are meaningful for what they cover. COSMOS certification, used by the Soil Association in the UK, sets rules on how ingredients are farmed and processed and restricts some synthetic ingredients (Soil Association). It does not test whether a product suits sensitive skin, and certified organic products can still contain essential oils and allergens.

What should you look for instead of "clean"?

Our three practical criteria for lower-exposure skincare are:

1. Fragrance-free: no parfum, fragrance or essential oils.
2. Non-comedogenic if you are acne or blackhead-prone.
3. Mineral UV filters in sunscreen.

We also treat gender-labelled skincare as mostly marketing: the ingredients that suit your skin type matter more than whether the bottle says "for men".

What do "dermatologically tested" and "hypoallergenic" mean?

Neither is defined in law. "Dermatologically tested" usually means a small group of volunteers used the product under a dermatologist's supervision; the number of people and the results are rarely published. "Hypoallergenic" means the brand believes the product is less likely to trigger allergy, but there is no agreed test behind it, and some hypoallergenic products still contain parfum. Under the EU claims criteria, these statements should be supported by evidence, so you can ask a brand for it.

Should I trust ingredient-scoring apps?

Apps that colour-code ingredients can be useful for one thing: spotting fragrance, essential oils and specific allergens you already know you react to. They are less useful for overall "toxicity" scores, which often treat any hazard flag as equal regardless of dose, exposure route or regulatory review. A preservative used at a fraction of a per cent in a rinse-off shampoo is not comparable to an ingredient left on the skin all day. Use apps to read labels faster, not to replace the evidence.

Bottom line

"Clean beauty" is a retail category, not a standard. UK law already requires every cosmetic to be safety-assessed, and claims must be truthful and provable. The evidence-led changes worth making are specific: drop fragrance and essential oils, pick mineral sunscreen filters if you want to lower exposure to filters under review, and choose textures that suit your skin. Our minimal routine for oily, blackhead-prone skin puts those criteria into practice.