Permitted vs. Prohibited Food Additives in Japan: The 2026 List

Japan's positive list system

Japan uses a positive list system for food additives: only substances explicitly listed as approved by MHLW may be used. There is no equivalent of the US "GRAS" (Generally Recognized As Safe) pathway — if an additive is not on the list, it cannot be used, regardless of its safety record in other markets.

Japan recognizes four categories of food additives: designated additives (synthetically produced, require MHLW approval), existing food additives (natural substances with a long history of use in Japan), natural flavor substances, and general food ingredients used as additives. Most imported product compliance issues involve designated additives.

Most commonly flagged additives

Colorings that require reformulation

Synthetic colorings are the most common reformulation trigger for brands entering Japan from Western markets. The US permits a range of FD&C dyes that have no approved equivalent in Japan.

If your product contains Red 40, Yellow 5, Yellow 6, or Blue 1, reformulation for the Japan market is almost certainly required. Approved alternatives exist — including natural colorings such as beta-carotene, beet red, gardenia blue, and turmeric — but must be verified against the approved list and tested for stability in your specific product format.

Preservatives and antioxidants

Several preservatives common in Western markets are not approved in Japan or are subject to restrictions more stringent than other markets:

• TBHQ (tert-Butylhydroquinone): Not approved in Japan. Common in US snack foods and cooking oils.
• Sodium benzoate: Approved but restricted. Cannot be used in certain product categories including soy sauce; quantity limits apply in beverages.
• Potassium sorbate: Approved with quantity limits. Generally compatible with Japan formulations.
• BHA: Approved only for use in fats and oils, with strict quantity limits.
• BHT: Approved with quantity limits; additional restrictions apply for certain product types.

How to verify your ingredient list

The most reliable approach is to cross-reference every additive in your ingredient list against MHLW's official database of designated food additives. The database is maintained in Japanese but the additive identification numbers (INS numbers where applicable) allow cross-referencing.

For brands without internal regulatory expertise, a pre-export compliance review by a Japan-qualified food regulatory consultant — or a JMG Feasibility Report — will identify all additive compliance issues before your first shipment. This is strongly recommended for any product with a complex ingredient list.