MAGNESIUM BENZOATE
Official label name (INCIInternational name of cosmetic ingredients: the one printed on the pack. name, EU glossary of cosmetic ingredient names), No 15765
- Preservative allowed under conditions (Annex V)
MAGNESIUM BENZOATE: Preservative allowed under conditions, with limits depending on the product type (Annex V, entry 1a), under Regulation (EC) No 1223/2009. Annexes of the Regulation consulted on 21 October 2026.
Who it concerns
What official classifications and rules say for each group. A classification describes the hazard of the pure substance, not the risk of a product that contains it, which depends on the dose and the exposure.
Prohibition or serious classificationThe text prohibits the substance for this use, or ranks it among the most serious hazards (known or presumed carcinogenic, mutagenic or reprotoxic, identified endocrine disruptor).Worth watchingThe text sets a condition or flags a hazard worth knowing: allergen, suspected effect, condition for children, hazard to the aquatic environment.For informationOfficial information with no condition on a finished product: warning to read, irritation of the pure substance.
Pregnancy and breastfeeding
No classification harmonised by the European Union covers reproduction, the unborn child or breastfeeding for this substance. This does not mean it has been judged to have no effect during pregnancy.
Babies and children
The Cosmetics Regulation sets no age-related condition for this ingredient.
Skin, eyes and allergies
No official classification for sensitisation, irritation or eye damage, and no obligation to label it as an allergen.
Environment
No official classification as hazardous to the aquatic environment and no assessment as an endocrine disruptor for the environment.
Read on the label
The Cosmetics Regulation requires no warning to be printed for this ingredient.
In plain words
What it is used for
Functions declared by manufacturers:
Preservative: inhibits primarily the development of micro-organisms in cosmetics.
What the rules say
An ingredient can be used as a preservative only if it appears on the list of Annex V. MAGNESIUM BENZOATE is on it with a maximum concentration.
The text of the annexes
Preservative allowed under conditions
- Maximum concentration
- 0.5% (acid)
- Entry
- Annex V, No 1a
- Substance
- Salts of benzoic acid other than that listed under reference number 1 and esters of benzoic acid
- Glossary names
- AMMONIUM BENZOATE / BUTYL BENZOATE / CALCIUM BENZOATE / ETHYL BENZOATE / ISOBUTYL BENZOATE / ISOPROPYL BENZOATE / MAGNESIUM BENZOATE / MEA-BENZOATE / METHYL BENZOATE / PHENYL BENZOATE / POTASSIUM BENZOATE / PROPYL BENZOATE
- CAS
- 1863-63-4 /2090-05-3 / 582-25-2 / 553-70-8 / 4337-66-0 / 93-58-3 / 93-89-0 / 2315-68-6 / 136-60-7 / 120-50-3 / 939-48-0 / 93-99-2
- EC
- 217-468-9 / 218-235-4 / 209-481-3 / 209-045-2 / 224-387-2 / 202-259-7 / 202-284-3 / 219-020-8 / 205-252-7 / 204-401-3 / 213-361-6 / 202-293-2
What has changed, and what will change
Dates of the texts that cover this ingredient. A text date may cover several substances: the details of each entry are below.
Annex V, entry 1a: introduced or replaced by Regulation (EC) No 1223/2009
Annex V, entry 1a: applies from this date
Identity
- CosIng identifier
- 35084
- CAS (according to CosIng)
- 553-70-8
- EC (according to CosIng)
- 209-045-2
- Declared functions
- Preservative
- Wikidata
- Q1914270
- ECHAEuropean Chemicals Agency. InfoCard
- 100.008.224
- InChIKey
- PJJZFXPJNUVBMR-UHFFFAOYSA-L
Elsewhere in the world
Information on other jurisdictions, with no effect on sale in France. What is covered, and what is not yet.
Comparison between countries
Most restrictive status in each country, and the maximum concentration cited. The details and the source of each rule follow.
| Country | Rule | Maximum concentration cited |
|---|---|---|
| European Union | Preservative allowed under conditions | 0.5% |
| United Kingdom | Preservative allowed under conditions | 0.5% |
| Switzerland | EU Regulation applies | 0.5% |
| United States (federal) | No federal rule recorded | not cited |
| Japan | No entry in the lists recorded | not cited |
| South Korea | Restricted differs from the EU | 0.5 to 2.5% |
| China | No entry in the lists recorded | not cited |
| Australia | No entry in the lists recorded | not cited |
| Brazil | Allowed under conditions | 0.5% |
United Kingdom (Great Britain)
- Preservative allowed under conditions (Annex V)
Same entries as in the European Union. Conditions (concentrations, warnings) may differ: they are not compared here.
Switzerland
Regulation (EC) No 1223/2009 applies in Switzerland (Article 54 of the Ordinance on Foodstuffs and Utility Articles).
United States, federal rules
None of the integrated sections of the federal code (21 CFR 700.11 to 700.27 and 250.250) targets this name. The FDA does not publish a list of allowed ingredients.
South Korea
- Restricted: 벤조익애씨드, 그 염류 및 에스텔류 (MAGNESIUM BENZOATE)
별표 2, 보존제 성분 (preservatives), entry 15, page 3-4. Limit: 산으로서 0.5% (다만,벤조익애씨드 및그 소듐염은 사용 후 씻어내는 제품에는 산으로서 2.5%).
Conditions, source text, in Korean
화학물질명: 벤조익애씨드 (CAS No. 65-85-0) | 화학물질명: 소듐벤조에이트 (CAS No. 532-32-1) | 화학물질명: 암모늄벤조에이트 (CAS No. 1863-63-4) | 화학물질명: 부틸벤조에이트 (CAS No. 136-60-7) | 화학물질명: 칼슘벤조에이트 (CAS No. 2090-05-3) | 화학물질명: 에틸벤조에이트 (CAS No. 93-89-0) | 화학물질명: 이소부틸벤조에이트 (CAS No. 120-50-3) | 화학물질명: 이소프로필벤조에이트 (CAS No. 939-48-0) | 화학물질명: 엠이에이-벤조에이트 (CAS No. 4337-66-0) | 화학물질명: 마그네슘벤조에이트 (CAS No. 553-70-8) | 화학물질명: 메틸벤조에이트 (CAS No. 93-58-3) | 화학물질명: 페닐벤조에이트 (CAS No. 93-99-2) | 화학물질명: 포타슘벤조에이트 (CAS No. 582-25-2) | 화학물질명: 프로필벤조에이트 (CAS No. 2315-68-6)
Brazil
- Allowed under conditions: Sais de ácido benzoico não inclusos no número de ordem 1 e ésteres de ácido benzoico (AMMONIUM BENZOATE/ BUTYL BENZOATE/ CALCIUM BENZOATE/ ETHYL BENZOATE/ ISOBUTYL BENZOATE/ ISOPROPYL BENZOATE/ MAGNESIUM BENZOATE/ MEA-BENZOATE/METHYL BENZOATE/ PHENYL BENZOATE/ POTASSIUM BENZOATE/ PROPYL BENZOATE)
RDC 528/2021, Anexo (allowed preservatives), entry 2, page 2. Limit: 0.5% (expresso como ácido).
Glossary: Commission Implementing Decision (EU) 2025/1175. Page updated on 21 October 2026.