Is Potassium Metaphosphate safe in cosmetics?
Potassium Metaphosphate has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.
Good
Cosmetic Ingredient
Potassium Metaphosphate
Also known as: Metaphosphoric acid (HPO3), potassium salt (1:1), EINECS 232-212-6, Potassium polymetaphosphate, UNII-01DMT14Z63, Metaphosphoric acid (HPO3), potassium salt (+6 more)
INCI: POTASSIUM METAPHOSPHATE
Potassium Metaphosphate (CAS 7790-53-6) is a cosmetic cosmetic ingredient functioning as Chelating agent; Oral care agent (anti-tartar); Buffering. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety and food safety data.
View industrial chemical safety profile for CAS 7790-53-6 →
Auto-generated CPSR Part A draft with source citations
Function
Chelating agent; Oral care agent (anti-tartar); Buffering
Safety Rating
GOOD
Chemistry & Identifiers
InChIKey
OQZCJRJRGMMSGK-UHFFFAOYSA-M
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Not restricted for cosmetic use; also GRAS as food additive (sequestrant, emulsifier)
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Potassium Metaphosphate.
Calculate MoS for your specific formulation with the MoS Calculator.
PubChem Annotations
Safety and regulatory annotations from PubChem (NCBI) aggregated sources.
Regulatory (2)
JECFA Evaluation
POTASSIUM POLYPHOSPHATES | 1982 | Group MTDI for phosphorus from all sources, expressed as P | TRS 683-JECFA 26/25 | FAS 17-JECFA 26/151
Source: WHO/JECFA
EU Food Improvement
Food additives
Source: EU Food Improvement Agents
Function Categories & List Membership
Cosmetic/Chemical Function Categories
Emulsifier
Humectant
Surfactant (surface active agent)
Regulatory List Membership (1)
FDA Substances Added to Food (EAFUS)
Expert Verdict
Expert safety assessment and concern-level summary for Potassium Metaphosphate.
Regulatory Flags
fda_food_additive
Known Synonyms
Metaphosphoric acid (HPO3), potassium salt (1:1)
EINECS 232-212-6
Potassium polymetaphosphate
UNII-01DMT14Z63
Metaphosphoric acid (HPO3), potassium salt
Potassium metaphosphate (KPO3)
Kurrol's salt
Potassium Kurrol's salt
Potassium phosphate (KPO3)
POTASSIUM M-PHOSPHATE
METAPHOSPHORIC ACID, POTASSIUM SALT
Chemical Function
Surfactant (surface active agent)
Humectant
Emulsifier
Regulatory Lists
food_additive; Substances Added to Food (formerly EAFUS) (2/2019)
Australian Status
AICIS status: listed
Cross-Vertical Safety Context
Same-CAS public records found in food safety data.
SOURCE
EFSA / FDA GRAS
food_additives
Food Safety Data
Same-CAS food additive or FDA GRAS records from the core public database.
Food Name
POTASSIUM POLYMETAPHOSPHATE
Food Category
emulsifier
Frequently Asked Questions
Is Potassium Metaphosphate allowed in the EU?
Potassium Metaphosphate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Potassium Metaphosphate do in cosmetics?
Potassium Metaphosphate functions as: Chelating agent; Oral care agent (anti-tartar); Buffering. It is classified as a cosmetic ingredient in our database. CAS number: 7790-53-6.
Is Potassium Metaphosphate used outside cosmetics?
Potassium Metaphosphate also appears in industrial chemical safety and food safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Potassium Metaphosphate compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
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(APPLE/CITRUS JUNOS/LENTIL/PEAR/PUMPKIN/STRAWBERRY/TOMATO FRUIT)/CORN KERNEL/(ARCTIUM LAPPA/BRASSICA OLERACEA ACEPHALA/CABBAGE/CAMELLIA SINENSIS/MORINGA OLEIFERA/RADISH/SPINACH LEAF)/(SORGHUM BICOLOR LEAF/STEM)/OAT MEAL/POTATO PULP/(CARROT/NELUMBO NUCIFERA/RADISH/WILD YAM ROOT)/(AMARANTHUS HYPOCHONDRIACUS/CASHEW/CICER ARIETINUM/COIX LACRYMA-JOBI MA-YUEN /MACADAMIA TERNIFOLIA/PHASEOLUS ANGULARIS/PISTACIA VERA/RHYNCHOSIA NULUBILIS/RICE/SESAME/SETARIA ITALICA/SOYBEAN/SWEET ALMOND/WHEAT SEED)/HORDEUM VULGARE SPROUT/CYPERUS ESCULENTUS TUBER/ARTEMISIA PRINCEPS/BROCCOLI/CHENOPODIUM QUINOA/ENTEROMORPHA COMPRESSA/HORDEUM VULGARE/IPOMOEA BATATAS/LAMINARIA JAPONICA/LENTINUS EDODES/PLEUROTUS OSTREATUS/PORPHYRA TENERA/UNDARIA PINNATIFIDA EXTRACT
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Chemical family
Abrasive, oral care agent
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Good
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