E405Carrier · Emulsifier · Stabiliser · Thickener
Propane-1‚2-diol alginate
A thickener made from kelp.
It helps mix, steady and thicken foods.
Written from English Wikipedia1
- Vegan
- Vegetarian
- EU permitted
What research says
Study type not stated
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No harm found
Additive breakdown in body2
Propane-1,2-diol alginate breaks down in the body, and scientists found no safety concern at the amounts used in food.
The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least two findings in people. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.
Regulatory status
Checked Sep 2026-
United States Permitted FDA 21 CFR 172.858
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European Union Permitted EUR-Lex Reg. (EC) 1333/2008
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United Kingdom Permitted FSA retained EU law
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Canada Permitted Health Canada · Emulsifying Gelling Stabilizing Thickening Agents
Status reflects the named register on the date checked. It is not a safety rating.
How we checkProducts
The 6 most-scanned of 842 products on Open Food Facts that list propane-1‚2-diol alginate.
- Perinaise Nando's · 265 g 6 additives
- PERi-PERi SAUCE Medium Nando's · 120 g 3 additives
- Fresh Garlic Caesar la maison · 1.4 L 9 additives
- Peri peri sauce Nando’s · 500 g 4 additives
- Peri Peri Sauce Hot Nando's · 500 g 4 additives
- PERI-naise PERi-PERi MAYO Mild Nando's 7 additives
References
- 1Propylene glycol alginate. Wikipedia. Accessed September 26, 2026.
- 2Younes M, Aggett P, Aguilar F, et al. Re-evaluation of propane-1,2-diol alginate (E 405) as a food additive. EFSA J. 2018;16(7):e05371. doi:10.2903/j.efsa.2018.5371