Excellent Active Ingredient

Maltobionic Acid

INCI: MALTOBIONIC ACID

Maltobionic Acid (CAS 534-42-9) is a cosmetic active ingredient functioning as Bionic acid (PHA subclass) with an even gentler profile than lactobionic acid. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.

View industrial chemical safety profile for CAS 534-42-9 →

Auto-generated CPSR Part A draft with source citations
Function
Bionic acid (PHA subclass) with an even gentler profile than lactobionic acid. Functions as a gentle exfoliant, antioxidant, humectant, and chelating agent. Particularly suitable for post-procedure and rosacea-prone skin. Activity confined to outermost stratum corneum layers due to large molecular weight and multiple hydroxyl groups. No burning, stinging, or photosensitisation associated with AHAs.
Safety Rating
EXCELLENT

Chemistry & Identifiers

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Assessed as safe for cosmetic use. Bionic acid PHA subclass with established safety profile analogous to lactobionic acid. Not specifically listed in FDA OTC monographs.

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

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Maltobionic Acid.

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Additional Ingredient Properties

2 property records from structured ingredient metadata.

exfoliant
{"cas_number": "534-03-2", "ingredient_class": "PHA", "chemical_subclass": "bionic_acid/aldobionic_acid", "molecular_weight_Da": "358.3", "pKa_value": "~3.60", "pH_dependent_activity": "yes", "optimal_pH_range": "3.5-5.0", "penetration_depth": "stratum_corneum", "mechanism_of_action": "desmolysis", "target_bonds": "desmosomal", "onset_of_action": "hours", "peak_effect_timeline": "12-16 weeks", "ce…
skin_suitability
{"oily_skin": "recommended", "dry_skin": "recommended", "sensitive_skin": "recommended", "combination_skin": "recommended", "normal_skin": "recommended", "acne_prone": "acceptable", "rosacea": "recommended", "eczema": "acceptable", "hyperpigmentation": "acceptable", "aging_mature": "recommended", "dehydrated": "recommended", "skin_benefit_primary": "exfoliating", "skin_benefit_secondary": "hydrati…

Expert Verdict

Expert safety assessment and concern-level summary for Maltobionic Acid.

Regulatory Flags

pha bionic-acid antioxidant chelating humectant no-photosensitivity gentlest-pha post-procedure-safe rosacea-safe fitzpatrick-iv-vi-preferred

Frequently Asked Questions

Is Maltobionic Acid safe in cosmetics?

Maltobionic Acid has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted.

Is Maltobionic Acid allowed in the EU?

Maltobionic Acid EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Maltobionic Acid do in cosmetics?

Maltobionic Acid functions as: Bionic acid (PHA subclass) with an even gentler profile than lactobionic acid. Functions as a gentle exfoliant, antioxidant, humectant, and chelating agent. Particularly suitable for post-procedure and rosacea-prone skin. Activity confined to outermost stratum corneum layers due to large molecular weight and multiple hydroxyl groups. No burning, stinging, or photosensitisation associated with AHAs.. It is classified as a Active Ingredient in our database. CAS number: 534-42-9.

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