MAGNESIUM HYDROGEN PHOSPHATE
Phosphoric acid, magnesium salt (1:1)
MAGNESIUM HYDROGEN PHOSPHATE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.
Regulatory evidence by market
No rule for this ingredient has been imported for any of the 13 markets tracked here.
That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.
Chemical identity and properties

Magnesium Hydrogen Phosphate
The CIR Expert Panel concluded that the following 31 ingredients are safe in the present practices of use and concentration in cosmetics as described in this safety assessment, when formulated to be non-irritating...Magnesium Hydrogen Phosphate... — Cosmetic Ingredient Review (CIR)
- IUPAC name
- magnesium hydrogen phosphate
- Molecular formula
- HMgO4P
- Molecular weight
- 120.28 g/mol
- Exact mass
- 119.9462872 Da
- Topological polar surface area
- 83.4 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 4
- Covalent units
- 2
- Defined stereocentres
- 0
Also known as
16 more reported names
External database identifiers
- EPA DTXSID:DTXSID00872522
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Inventory details for MAGNESIUM HYDROGEN PHOSPHATE
INCI name
MAGNESIUM HYDROGEN PHOSPHATE
Description
Phosphoric acid, magnesium salt (1:1)
Record provenance
- Inventory reference
- 57546
- Imported identity
- MAGNESIUM HYDROGEN PHOSPHATE
- Source update
- 15/10/2010
Annex records for MAGNESIUM HYDROGEN PHOSPHATE
Key data
- ANTICAKING
- Preventing agglomeration of particulate solids into lumps or hard masses (cohesive cake), thus allowing free flow of particles.
Official EU ingredient-name evidence
The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.
Related inventory evidence
Ingredients with overlapping formulation functions
Additional official and scientific sources
11 external databases to check this identity in
Each link searches that source for this identity. What each source is, and its legal weight
How MAGNESIUM HYDROGEN PHOSPHATE appears in the CosIng inventory
The CosIng inventory lists MAGNESIUM HYDROGEN PHOSPHATE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.
MAGNESIUM HYDROGEN PHOSPHATE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.
Frequently asked questions
Source note for MAGNESIUM HYDROGEN PHOSPHATE
This page reproduces the CosIng inventory entry for MAGNESIUM HYDROGEN PHOSPHATE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.
Use this inventory page to research MAGNESIUM HYDROGEN PHOSPHATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.
Tools & next steps
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