Moderate Preservative Sensitization Data

Polyaminopropyl Biguanide

INCI: POLYAMINOPROPYL BIGUANIDE

CAS Number
32289-58-0
Function
Preservative (Broad-Spectrum Antimicrobial)
Safety Rating
MODERATE

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status restricted
EU Max Conc. 0.1%
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes CIR 2020: safe when formulated to be non-irritating/non-sensitizing. CMR Cat. 2 per EU.

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
moderate
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Sensitization Profile

Contact sensitization data for Polyaminopropyl Biguanide based on clinical patch test studies and IFRA standards.

Sensitization Rate
low
Allergen Class
preservative
EU Allergen Listed
no
Patch Test Positive Rate
0.3%
Cross-reactivity Group
formaldehyde-releaser-group
Reaction Type
contact-dermatitis

Source: ESSCA 2019/20; IVDK; FDA

Expert Verdict

Safe at โ‰ค0.1% in non-spray cosmetics (Annex V/28). Prohibited in spray/aerosolized products due to inhalation hazard (H330). CMR Cat. 2 classification. MoS adequate at 0.1%. Cationic polymer; verify anionic compatibility.

โš ๏ธ
Concern Level: Moderate

Regulatory Flags

EU_RESTRICTED BANNED_SOME eu_cosing_listed

Frequently Asked Questions

Is Polyaminopropyl Biguanide safe in cosmetics?

Safe at โ‰ค0.1% in non-spray cosmetics (Annex V/28). Prohibited in spray/aerosolized products due to inhalation hazard (H330). CMR Cat. 2 classification. MoS adequate at 0.1%. Cationic polymer; verify anionic compatibility. The EU classifies Polyaminopropyl Biguanide as "restricted". Safety rating: MODERATE.

Is Polyaminopropyl Biguanide allowed in the EU?

Polyaminopropyl Biguanide EU regulatory status: restricted. Maximum allowed concentration: 0.1%. This is based on EU Regulation 1223/2009 and its amendments.

What does Polyaminopropyl Biguanide do in cosmetics?

Polyaminopropyl Biguanide functions as: Preservative (Broad-Spectrum Antimicrobial). It is classified as a Preservative in our database. CAS number: 32289-58-0.

What is the Margin of Safety for Polyaminopropyl Biguanide?

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

๐Ÿ“ฑ

Is Polyaminopropyl Biguanide in Your Products?

Scan any product label with Piro โ€” our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free โ†’

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Polyaminopropyl Biguanide in your formulation.