Nature-based, vegan, clean: what hair care labels mean

Nature-based, natural and clean are marketing terms in hair care with no legal definition, so every brand fills them in its own way. Vegan means no ingredients of animal origin; cruelty-free refers to the testing of the product and its raw materials. If one of these claims matters to you, look on the pack for the seal of a certification body or read the INCI list on the back, because the word on the front proves nothing by itself. None of these labels tells you whether a product suits your scalp, and natural does not automatically mean mild.

What the labels promise and what they leave open

On a bottle these terms often sit side by side. Only what carries a seal or is regulated by law actually gets checked. The table sorts the claims you read most often on shampoo, conditioner and masks.

Nature-based and natural: what the words say about origin

Neither word is defined for cosmetics, in the EU or in the UK. Any brand may call a shampoo nature-based without anyone checking the maths. EU cosmetics law only requires claims to be truthful, backed by evidence and free of anything that misleads the buyer; the criteria are set out in Regulation (EU) No 655/2013.

If the bottle states a percentage “of natural origin”, it is often calculated under ISO 16128. The standard describes how to do the sum. It sets no minimum share and awards no seal. Water counts as a natural ingredient, and since a shampoo is mostly water, the figure quickly looks impressive.

Origin also says little about processing. Sodium Coco-Sulfate is made from coconut oil and can therefore be marketed as nature-based. Chemically it is a sulphate surfactant, closely related to sodium lauryl sulfate (SLS), which makes up a large part of it. So a shampoo can be nature-based and a sulphate shampoo at the same time. Whether that should bother you depends on what sulphates and silicones do to hair and how often you wash.

“Chemical-free” is true on no bottle at all. Water, coconut oil and lavender oil are chemicals just as much as a silicone is. Whether a substance irritates or cares depends on the substance itself and on the amount. Nor does an effect follow from where something comes from. Every plant ingredient has to be studied on its own, and the enthusiasm for rosemary oil for hair loss still rests on a single comparison study with 100 men.

Natural cosmetics and organic: here someone checks

Natural cosmetics is an unprotected term as well. It only becomes reliable with a seal. Two are widespread in Europe: NATRUE and COSMOS, the standard that bodies such as BDIH and Ecocert certify against. Both define which raw materials are allowed, how they may be processed and what is excluded, including silicones, paraffins and synthetic fragrances. Independent certification bodies check this.

Organic is even more loosely regulated for cosmetics. The EU organic regulation covers food and agricultural products, and cosmetics fall outside it. “Organic” on a shampoo therefore means, to begin with, only that some ingredients come from organic farming. Only the organic tier of a seal guarantees a fixed minimum share.

Clean and “free from”: every brand writes its own list

Clean beauty has no definition, in law or in any standard. Brands and retailers draw up their own exclusion lists, often naming sulphates, silicones, parabens, mineral oil or phthalates. What passes as clean at one brand fails the test at another.

The European Commission has published guidance on “free from” claims. Under it, a brand should not advertise the absence of a substance that is banned in cosmetics anyway. Such a claim should also avoid running down permitted ingredients across the board. In the EU, every product needs a safety assessment by a qualified expert before it goes on sale, with or without a clean label.

An exclusion list tells you what is missing. What is actually in the bottle appears only in the INCI list. A silicone-free conditioner can still feel heavy on fine hair, because rich plant butters also stay on the fibre.

Vegan and cruelty-free: two claims, two seals

Vegan means that no ingredient comes from animals. No law defines this for cosmetics. Seals such as the Vegan Society's sunflower trademark or the V-Label award their mark by their own criteria. Without a seal, you can spot animal-derived ingredients in the INCI list yourself:

In the EU, cruelty-free is largely the law. Since March 2013, no cosmetics may be sold there if they or their ingredients were tested on animals for cosmetic purposes, and the UK applies the same ban. The gap lies with raw materials that are also used in other industries: chemicals law (REACH) can require animal tests for those. Products made for markets outside the EU are also subject to those markets' rules.

The Leaping Bunny certification from Cruelty Free International goes further. The brand sets a fixed cut-off date from which neither it nor its suppliers carry out or commission animal tests, monitors those suppliers and is audited independently. The two claims stand apart from each other. A shampoo with beeswax can be cruelty-free, and a vegan shampoo without a seal can contain raw materials that were tested on animals somewhere in the world.

Natural does not automatically mean mild

Essential oils from lavender, tea tree, lemon, peppermint or ylang-ylang are among the common triggers of contact allergy to cosmetics. Above a small amount, their fragrance components such as linalool, limonene, citral, geraniol or eugenol must be named individually in the INCI list, even when they come from a plant. A bottle with a natural scent can therefore carry a longer allergen list than one with a synthetic scent. Limonene and linalool irritate more once they have reacted with air: a product that has stood open in a warm bathroom for a year may agree with you less than it did on the first day.

Take care if your scalp quickly itches or feels tight, if you have a known fragrance allergy or if you tend towards eczema. In that case a fragrance-free product is a better choice than a nature-based one with essential oils, and care for a sensitive scalp starts with the fragrance line.

If your scalp burns or itches after a new product, rinse it out with lukewarm water and stop using it. Until things settle, wash with a fragrance-free shampoo you already tolerate well and skip styling products. An itchy scalp after a new shampoo is often down to fragrance, preservatives or a surfactant that cleanses too strongly for your scalp. If the reaction lasts longer than 2–3 days, or the skin weeps or swells, see a dermatologist: with a patch test she can narrow down which substance is behind it. You can then avoid that name in every INCI list.

Reading hair care labels: three minutes in the shop, two days on your arm

Step 1 — Look for seals. Check the front and back for NATRUE, COSMOS, Leaping Bunny, the Vegan Society sunflower or the V-Label. A green leaf without the name of a certification body is just design. If green colours and words like “pure” or “botanical” are all that is meant to prove how natural it is, you are looking at the usual form of greenwashing.

Step 2 — Read the first five INCI lines. Ingredients are listed by amount; anything under one per cent may follow at the end in any order. The first five lines show what the product mainly consists of: for a shampoo usually Aqua and then the surfactants, for a conditioner Aqua and fatty alcohols such as Cetearyl Alcohol. If the advertised argan oil (Argania Spinosa Kernel Oil) only appears after Parfum, there is little of it, because the fragrance itself usually makes up only a small part.

Step 3 — Check fragrance and allergens. Look for Parfum or Fragrance, then for individual fragrance names at the end of the list. If your scalp reacts quickly, choose the product with the shorter allergen line.

Step 4 — Test on your arm. Apply a pea-sized amount to the crook of your elbow or behind your ear. Dilute a shampoo with a little water and rinse it off after five minutes; a treatment or an oil stays on. Watch the spot for 48 hours. If redness, itching or blisters appear, leave the product out. If the spot stays calm, a reaction on your scalp is less likely, though still possible.

Introduce only one new product at a time and give it two weeks before the next one joins. If your scalp reacts, you then know which one it was.

Which label matters to you

Find the row that matches the reason you are looking at the label in the first place.

No label helps with that last row. The free hair analysis asks about your scalp, hair thickness and care habits one by one.

Common label-reading mistakes and what to do instead

• Taking “nature-based” on the front as proof → read the seal and the INCI list on the back
• Assuming “SLS-free” means sulphate-free and missing Sodium Coco-Sulfate → check the first lines of the INCI list for “Sulfate” in a name
• Comparing two “of natural origin” percentages → ask whether the water is counted
• Putting neat essential oil on your scalp → use it only in a finished product or diluted in a carrier oil, after an arm test

If you use MONAT

MONAT describes its hair care as nature-based and vegan and states that it formulates without SLS/SLES, phthalates, parabens and animal-derived ingredients. MONAT is certified cruelty-free under the Leaping Bunny standard. The products carry no NATRUE or COSMOS seal, so they are not certified natural cosmetics. Measured against this page, cruelty-free is backed by the seal, vegan is something you check yourself in the INCI list, and nature-based is the brand's own description. REJUVENIQE® oil is a blend of plant and essential oils; if your scalp is sensitive, the same arm test applies to it as to any fragranced product. “Biotech Beauty” is the brand term MONAT uses for its approach and comes with no testing criteria; how MONAT combines plant raw materials and formulation research under that name is set out in what MONAT means by Biotech Beauty.

Quick questions

Is vegan hair care better for your hair?

No. Vegan only governs where the ingredients come from: a plant protein such as hydrolysed wheat protein settles on the fibre much like an animal one, and whether your hair needs protein at all depends on its condition.

Can nature-based hair care do without preservatives?

Usually only when it contains no water. Shampoo, conditioner and masks are mostly water and need preserving so that no germs grow in them once opened; natural cosmetics seals allow a short list of substances for this, such as benzoic acid or sorbic acid. Pure oils have nothing for germs to grow in, though they often contain vitamin E (tocopherol) to stop them turning rancid.

What does “dermatologically tested” mean?

That the product was tested for skin tolerance on volunteers under the supervision of a dermatologist. The claim has no legal definition, and how many people took part and with what result is usually missing from the pack.

How long does a nature-based shampoo last once opened?

As long as the open-jar symbol on the back says, for example 12M for twelve months. If it smells different before then, changes colour or separates into layers, throw it out even if the period hasn't run out.

Does “hypoallergenic” guarantee I won't react?

No. The claim means the formula is designed to trigger allergies as rarely as possible. No manufacturer can rule a reaction out. If you're allergic to a specific substance, still look for it in the INCI list.

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Once you've read the label and still want to know which care suits your scalp and hair thickness, take the free hair analysis.