Not a sales pitch for "natural is better" — an honest look at why manufacturers are reformulating, what genuinely changes in performance and cost, and what to check before you switch.
In UK/EU food law, most colour additives — including the natural-origin ones — are regulated under the same framework (retained Regulation (EC) No 1333/2008) and carry an E-number regardless of source. A natural-origin colour extract, like the curcumin or beetroot extracts in this range, is declared on a label as an additive with its E-number (e.g. "colour: curcumin (E100)"), the same as a synthetic azo dye would be.
This is different from a smaller category called "colouring foods" — concentrated fruit/vegetable/plant preparations that function as an ingredient rather than a declared additive, and carry no E-number at all. Most of the range on this site sits in the E-numbered natural-extract category, not the colouring-foods category — worth knowing precisely what you're getting, since some clean-label programmes distinguish between the two.
Six synthetic colours — Sunset Yellow (E110), Quinoline Yellow (E104), Carmoisine (E122), Allura Red (E129), Tartrazine (E102), and Ponceau 4R (E124) — require a mandatory warning label in the UK and EU: "may have an adverse effect on activity and attention in children." This isn't a voluntary clean-label choice — it's a labelling requirement tied to a 2007 Southampton University study.
E171 was banned as a food additive in the EU (and Northern Ireland, under the Windsor Framework) from August 2022, following an EFSA safety reassessment. It remains authorised in Great Britain. This is a genuine, current GB/EU regulatory split — worth checking carefully if you sell into both markets, since a GB-compliant white colourant may not be EU-compliant.
| Synthetic colours | Natural-origin colours | |
|---|---|---|
| Stability | Generally broad pH/heat/light tolerance | Often narrower — many are heat- or light-sensitive (e.g. beetroot fades under sustained heat); needs checking per application, not assumed |
| Shade consistency | Very consistent, batch to batch | Can vary slightly with natural raw-material variation; reputable suppliers tighten this with spec ranges and QC, but it's rarely as tight as a synthetic dye |
| Cost | Typically lower per unit of colour strength | Typically higher — more raw material needed for equivalent strength in many cases |
| Labelling | E-number, may trigger Southampton Six warning label | E-number (extracts) or no E-number (colouring foods) — no Southampton Six warning applies to any of these six risk colours' natural alternatives |
| Regulatory status | Long-established, well-understood approval history | Generally approved and safe within permitted use levels — same legal safety standard applies to both categories under EU/GB law |
Note: synthetic food colour additives approved for use in the UK/EU have passed the same regulatory safety assessment as natural-origin ones — this comparison is about labelling, sourcing, and formulation trade-offs, not a safety claim about either category.
Synthetic preservatives approved for UK/EU food use (e.g. sorbates, benzoates, sulphites) are not unsafe — they're permitted within regulated limits precisely because they've been assessed as safe at those levels. The case for switching to a natural preservation system is about label simplification and consumer preference for recognisable ingredients, not a safety argument against synthetic ones.
What genuinely changes: natural antioxidant/preservation systems (rosemary extract, natural fermentates, and similar) can typically match — though not always exceed — synthetic shelf-life performance, and they let a product carry a "no artificial preservatives" claim. The trade-off is usually cost and, in some applications, a narrower effective dose range that needs proper formulation trial work rather than a straight swap.
Tell us what you're currently using and what you're trying to achieve, and we'll help you work out whether — and how — a switch makes sense.