Galdieria blue, butterfly pea flower extract, calcium phosphate and gardenia blue: what the FDA approved in 2025, where each can be used, and what changes on labels.
9/9/2026 · 7 min read · Chris Carrillo · Reviewed by Armin Rad, Co-Founder & CTO, Aurascan · Last reviewed 9/9/2026
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Written by Chris Carrillo. Reviewed by Armin Rad, Co-Founder & CTO, Aurascan. It cites 4 sources; use the source list and methodology to check the evidence directly.
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View the sample resultWASHINGTON, Sept. 9, 2026 -- With state dye bans and the FDA's own phase-out target now months away, the natural color toolkit that food makers are reformulating with was approved in 2025: galdieria extract blue, calcium phosphate and butterfly pea flower extract in May 2025, and gardenia (genipin) blue in July 2025. Here is what each one is, where it can be used, and what shoppers will see on labels.
Key takeaways:
On May 9, 2025, the FDA announced it had approved three food colors from natural sources: galdieria extract blue, derived from the red alga Galdieria sulphuraria; butterfly pea flower extract, with expanded uses beyond its original 2021 listing; and calcium phosphate as a white colorant. Each approval was published as a final rule listing the additive under 21 CFR Part 73, the section for color additives exempt from certification (see the butterfly pea flower extract listing as an example).
On July 14, 2025 the FDA approved gardenia (genipin) blue, derived from the fruit of Gardenia jasminoides, in response to a petition from the Gardenia Blue Interest Group; in the same announcement the agency asked companies to remove FD&C Red No. 3 ahead of the January 2027 compliance date.
Both actions followed the April 22, 2025 HHS and FDA announcement of a plan to phase out petroleum-based synthetic dyes by the end of 2026. That plan is built on voluntary industry commitments and faster approvals of natural alternatives, not a federal ban; the agency also said it would partner with the National Institutes of Health on research into how food additives affect children's health and development.
The FDA maintains two primary statutory classes of color additives under the Federal Food, Drug, and Cosmetic Act: certified colors, which are synthetically derived from petroleum derivatives, and exempt colors, which are derived from botanical, biological, or mineral sources. The latest agency actions expand the list of exempt color additives codified in Title 21 of the Code of Federal Regulations (21 CFR Part 73).
Key regulatory approvals and Federal Register actions include:
The transition directly impacts consumer packaged goods manufacturers, commercial ingredient suppliers, grocery retailers, and the households that buy the affected cereals, candies, drinks and frozen desserts. Major product categories currently undergoing immediate formula adjustments include ready-to-eat breakfast cereals, children's confections, fruit snacks, sports hydration beverages, and frozen desserts.
Manufacturers operating national distribution networks face converging regulatory requirements across multiple jurisdictions. As examined in our report on potassium bromate bans: what states have done and when, state-level statutes have prompted consumer goods companies to implement comprehensive reformulations rather than maintain fragmented state-by-state packaging lines. These federal color additive approvals provide standard, nationwide compliance options for national brands.
Pediatric populations and consumers seeking clean-label options represent the primary consumer demographic driving this change. The scale of this transition aligns with broader industry movements documented in our analysis of how food brands race to drop artificial dyes before 2027.
For everyday consumers, the primary consequence of these approvals will be noticeable changes on the ingredients statement of packaged food products. Chemical nomenclature such as "FD&C Blue No. 1," "FD&C Yellow No. 5," or "Red 40 Lake" will increasingly be replaced by plain-language agricultural and mineral names.
Shoppers can expect to see specific ingredient changes across common product lines:
Consumers should be aware that natural botanical pigments exhibit different physical properties than petroleum derivatives. Plant-based colorants are inherently more sensitive to ambient light, oxygen, and high thermal processing, meaning reformulated foods may display softer, pastel hues rather than fluorescent tones. Shelf-life color intensity may also subtly change over extended storage periods.
Petroleum-based synthetic food dyes became prevalent across the commercial food supply during the twentieth century because of their low manufacturing costs, vibrant tinting strength, and exceptional thermal stability. Over subsequent decades, ongoing scientific inquiry and consumer advocacy raised concerns regarding hypersensitivity reactions and potential neurobehavioral effects in sensitive pediatric populations.
Federal regulatory momentum increased significantly after the FDA took formal steps to revoke authorization for FD&C Red No. 3 following statutory safety reviews under the Delaney Clause. This prompted coordinated petition reviews and intensified scrutiny on other widely used certified dyes, including FD&C Red No. 40 and Yellow No. 5.
Historically, the transition toward natural food coloring was severely restricted by a lack of heat-stable and acid-stable natural blue pigments. Because green, purple, and brown color profiles require stable blue components, food technologists struggled to formulate natural alternatives for beverages and baked foods. The authorization of microalgal and botanical sources like Galdieria and Clitoria ternatea overcomes this technical barrier.
As the industry approaches key 2027 transition targets, federal regulators will continue reviewing color additive petitions, supply chain scalability, and market labeling practices. Regulators are also reviewing pending petitions for novel fermentation-derived carotenoids and fungal pigments to further expand commercial options.
Key upcoming developments to track include:
Evidence limitations: Current toxicological and safety assessments evaluate newly approved natural color additives strictly within specified allowable food categories and maximum usage limits. Available regulatory and clinical evidence cannot rule out individual botanical allergies or establish definitive health outcomes across unstudied demographic groups. Consumers with specific plant or microalgal sensitivities must review the entire ingredient list on packaging.
Consumers seeking to avoid synthetic petroleum dyes or monitor new botanical colorants can take immediate, practical steps during grocery shopping:
To quickly verify whether packaged foods contain synthetic dyes or newly authorized botanical extracts, you can use digital label scanning tools. Scan your next label with Aurascan to check ingredients against current regulatory databases and make informed dietary choices.
The FDA approved and expanded authorizations for natural colorants including Galdieria extract blue from microalgae, butterfly pea flower extract, gardenia blue, and calcium phosphate, providing heat- and acid-stable natural alternatives.
The transition follows formal regulatory revocations of dyes such as FD&C Red No. 3, emerging state-level restrictions, and ongoing federal health evaluations regarding potential behavioral and developmental impacts in children.
Ingredients lists will state specific plant, algal, or mineral sources like 'Galdieria extract (color)' or 'butterfly pea flower extract' instead of certified dye terms like 'FD&C Blue No. 1' or 'Red 40 Lake.'
Yes. Natural botanical colors typically produce softer, more natural tones rather than neon or fluorescent shades, though newly approved extracts provide improved stability and brightness in acidic and heated foods.
Brands are actively reformulating products to meet phased compliance targets leading into 2027, driven by state-level food safety statutes and federal transition milestones.
While natural color additives undergo rigorous safety reviews, individuals with specific plant or algal sensitivities may experience reactions, which is why federal rules require botanical sources to be clearly declared on ingredient panels.
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