Is Bithionol safe in cosmetics?
Bithionol has a safety rating of "MODERATE" in our database. EU status: restricted. US status: prohibited.
MODERATE
Preservative
Bithionol
INCI: BITHIONOL
Bithionol (CAS None) is a cosmetic preservative functioning as antibacterial agent in cosmetics. EU Regulation 1223/2009 status: restricted. Industrial safety data is also available in the chemical safety database.
Function
antibacterial agent in cosmetics
Editorial assessment
MODERATE
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
restricted
US US Status
prohibited
US Notes
CIR assessment indicates the substance was prohibited before modern safety assessment frameworks were established.
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Bithionol.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Bithionol — not a computed safety verdict. See the sourced toxicological data above.
Regulatory Flags
EU Restricted
eu_banned_cosmetics
eu_cosing_listed
Frequently Asked Questions
Is Bithionol allowed in the EU?
Bithionol EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does Bithionol do in cosmetics?
Bithionol functions as: antibacterial agent in cosmetics. It is classified as a Preservative in our database. CAS number: None.
Compliance Tools
Check Bithionol compliance across multiple jurisdictions:
Ingredient Decoder
Paste a full ingredient list for instant analysis
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
Compare limits across jurisdictions
Related Ingredients
4-Hydroxybenzoic Acid
EXCELLENT
Same category
Preservative, pH Balancer
Caprylhydroxamic Acid
EXCELLENT
Same category
preservative booster, chelating agent
Glyceryl Caprylate
EXCELLENT
Same category
Antimicrobial agent; emollient; prese...
Levulinic Acid
EXCELLENT
Same category
Preservative (combination systems); a...
Potassium Sorbate
EXCELLENT
Same category
preservative
Sodium Benzoate
EXCELLENT
Same category
preservative
(20S)-Protopanaxadiol
MODERATE
Similar safety
(Cnidium Officinale/Coptis Chinensis/Glycyrrhiza Uralensis) Root Extract
MODERATE
Similar safety
Skin conditioning
(Cryptomeria Japonica/Chamaecyparis Obtusa) Stem Ferment Extract
MODERATE
Similar safety
Antimicrobial, antioxidant, humectant
(Eclipta Prostrata/Houttuynia Cordata) Leaf Extract
MODERATE
Similar safety
Skin conditioning
(Lepidium Meyenii/Sarcodon Aspratus) Root Water
MODERATE
Similar safety
Skin conditioning
(Licorice/Reynoutria Japonica) Root/Stem Extract
MODERATE
Similar safety
Skin conditioning, antioxidant
BORAGO OFFICINALIS/LAVANDULA ANGUSTIFOLIA/HYACINTHUS ORIENTALIS/SALVIA SCLAREA/(CENTAUREA CYANUS/CHAMOMILLA RECUTITA) FLOWER/CHAMOMILLA RECUTITA LEAF WATER
GOOD
Browse nearby
Anti-sebum, Antioxidant, Skin Conditi...
BORNANEDIONE
GOOD
Browse nearby
Film Forming
BOTRYTIS CINEREA/PASSIFLORA EDULIS FRUIT EXTRACT/PICEATANNOL FERMENT LYSATE FILTRATE
GOOD
Browse nearby
Hair Conditioning
Is Bithionol in Your Products?
Scan any product label with Piro — our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free →Analyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Bithionol in your formulation.