What changed in late April 2026 that sent so many hair-colour importers back to their ingredient sheets? The European Commission adopted Regulation (EU) 2026/909, an amendment to the bloc's cosmetics law that touches fragrance allergens, a nail-polish plasticiser, aluminium compounds and, closest to this story, four synthetic hair-colouring ingredients. One of them, hydroxypropyl-p-phenylenediamine, may not exceed 2% and must carry allergy-aware labelling. The text entered into force in May 2026, and the first hard stop for non-compliant products is 1 January 2027. A hair-colour startup does not need to be an expert in any of those molecules. It needs to know which of its suppliers can answer a regulator's questions without a week of silence.

The short version

When founders shortlist henna manufacturers in India, the useful comparison is rarely price per kilo. It is how quickly each producer can hand over documents a safety assessor would accept: a plain ingredient declaration, batch-level test results and a traceable lot number. The same test applies to hair colour suppliers that sell blends, because a blend carries every ingredient of every component.

What did the April 2026 update actually change?

Read the coverage from regulatory consultancies, and a pattern appears. The amendment was not aimed at plant powders. It rewrote entries in the annexes of the EU Cosmetics Regulation for specific substances, and for hair dyes it set maximum concentrations and warning wording for HC Blue No 18, HC Red No 18, HC Yellow No 16 and the hydroxypropyl compound above.

In the summaries reviewed, pure henna does not appear among the named ingredients. That is not the same as a clearance for every product with "henna" on the front, and nobody should treat it as one. A founder's job is narrower and more practical: confirm that nothing on the supplier's declaration falls into the new entries, and keep that confirmation on file.

Timing matters more than most people expect. According to one consultancy's reading of the transition rules, products that fail the new conditions cannot be placed on the EU market from 1 January 2027 and cannot be made available at all from 1 July 2028. Those two dates sit eighteen months apart, which tempts people to treat the earlier one as optional. Retailers and distributors may ask for updated compliance papers well before a legal date, so the practical deadline tends to arrive first.

Why does a plant powder still need a paper trail?

Because "natural" describes a source, not a test result. Henna powder is the dried, ground leaf of Lawsonia inermis, and its colouring molecule is lawsone. A leaf grown in one field and milled in one week can differ from the next lot in moisture, microbial load and sifting fineness. Two bags with the same name on the label may not behave the same way in a salon bowl.

The European Commission's Scientific Committee on Consumer Safety looked at henna as a hair dye in an opinion adopted on 19 September 2013. It found the data sufficient to assess the use and considered henna safe for the consumer in one defined preparation: 100 g of powder mixed with 300 ml of boiling water. The committee was careful about scope. The assessment rested on specific batches; other extracts with different compositions were not covered, and use as body paint was not assessed.

That careful scope is the lesson for buyers. A safety conclusion belongs to a tested material in a stated use, which is why a Certificate of Analysis (a batch-level record of what was measured in a specific lot) matters more than any adjective on a pack. A COA that does not match your lot number is a decorative page.

How do you read a supplier's evidence?

Start with the declaration. A pure henna powder should read as a single plant ingredient, Lawsonia inermis leaf, and nothing else. Anything extra deserves a one-line explanation from the producer.

Then ask what stands behind the claim that nothing was added. A shade that arrives as jet black is a warning sign, because natural henna stains are in the orange-to-brown range. The US Food and Drug Administration says the extra ingredient used to blacken henna is often a coal-tar hair dye containing p-phenylenediamine, a compound that can cause dangerous skin reactions in some people. Regulators on both sides of the Atlantic keep returning to this point because the harm tends to come from what was mixed in, not from the leaf.

Next comes batch traceability, a dull phrase for a simple idea: every bag can be tied back to a lot, and every lot to a test. Plant powders can pick up contaminants during drying and milling, so heavy metal and microbiological results for the specific product are worth requesting. A supplier who has them ready is telling you something about how the factory runs.

Finally, ask about intended use. The FDA states that henna is approved only as a hair dye and not for direct application to the skin, as in body decoration. Hair-colour grade and body-art grade are different products with different paperwork. A supplier who blurs the two is a supplier to question.

What changes if you sell under your own label?

Everything about liability moves toward you. Under EU cosmetics law, each product placed on the market needs a responsible person, an entity in the EU that answers for compliance. Behind that role sits the product information file, the dossier of formula, test data and safety assessment that must be available to authorities. A qualified safety assessor signs the safety report that goes into that file.

Here is the catch that surprises first-time founders. The safety assessor can only work with what you can supply. If a producer's declaration is vague, the report stalls, and so does your launch. One consultancy notes that even an unchanged formula can need its safety justification refreshed after a regulation like 2026/909, because the file must reflect current scientific opinions.

This is also where claims on the pack come under scrutiny. Wording such as "chemical-free" or "safe for everyone" is the sort of absolute that regulators and consumers treat sceptically. Lawsone is a chemical, as is water. A more defensible line describes what the product actually contains and what testing exists and leaves the superlatives to others.

Where do blends and hair colour suppliers fit in?

Pure henna is one product. Many buyers also want a wider shade range, which brings in blends with indigo or other botanicals, and sometimes henna-based colours with a small share of other ingredients. Each step away from a single-leaf powder adds lines to the declaration and questions to the file.

A fair rule for hair colour suppliers is to ask for the full ingredient list of the finished blend, not only the henna component, and to ask which components have their own documentation. If the answer is "ask the factory and get back to you", the file is not ready. A tidy test for any blend is to read its declaration the way a safety assessor would, one line at a time, and ask who can vouch for each line. A producer with a short list and a named source for every entry usually has the answer ready. A producer with a long list and a shrug does not.

A sourcing conversation, in the order it usually goes

Most diligence conversations that go well follow a similar rhythm, and it is worth describing in sequence rather than as a checklist.

First, request the specification sheet and the ingredient declaration together, and read them against each other. They should tell the same story. Second, ask for the Certificate of Analysis for a recent lot and compare the lot number with the sample you were sent. Third, ask which destination the producer has shipped against and whether the documents change by market. Fourth, order a small sample and run your own patch test protocol with a qualified adviser before any consumer sees the product. Fifth, put the answers in writing, because the person who reads your file in two years may not be you.

None of this is glamorous. All of it is cheaper than a recall, a delayed launch or a rewritten label after the stock is already printed.

What a sensible next step looks like.

Founders who handle this well tend to treat supplier documents as product features. They ask early, file everything and refresh the file when the rules move. If you are choosing between henna manufacturers in India and other origins, apply the same questions to every shortlist entry and let the paperwork break ties. Where a supplier publishes a specification sheet and test documentation, compare it with your own requirements line by line, and request current copies rather than relying on a web page.

This article is educational. It is not legal or medical advice, and regulatory details should be confirmed with a qualified adviser for your market.

Frequently asked questions

Q: Is pure henna powder affected by the EU's 2026 hair dye update? ** A: The coverage reviewed names synthetic colourants such as HC Blue No 18 and a PPD-related compound, not henna powder. Confirm the status of any specific blend with a regulatory adviser, because a product labelled "henna" can contain other ingredients.

Q: What is a Certificate of Analysis? ** A: A Certificate of Analysis records what was tested in one specific batch and what the results were. Ask for the one that matches your lot number, along with heavy metal and microbiological results where relevant.

Q: Does a hair colour brand need a responsible person in the EU?** A: Yes, each cosmetic product placed on the EU market needs a responsible person. That entity keeps the product information file and answers to authorities.

Q: When do the new limits apply? ** A: According to one consultancy's summary, non-compliant products cannot be placed on the EU market from 1 January 2027 and cannot be made available from 1 July 2028. Individual substances can differ, so check the text for each ingredient.

Q: Is henna approved for use on skin in the United States? ** A: The FDA says henna is approved only as a hair dye, not for direct application to the skin. This is why hair-colour grade and body-art grade should never be treated as interchangeable.

Q: What is "black henna" and why do regulators warn about it?** A: The FDA says the extra ingredient used to blacken henna is often a coal-tar hair dye containing PPD, which can cause dangerous skin reactions in some people. Natural henna does not stain jet black.

Conclusion

The EU's 2026 update is a reminder that hair colour is a documents business as much as a chemistry one. Whichever of the hair colour suppliers or producers you choose, the safest brands are the ones that can show their work on request.