Also known as: Glucono delta lactone, Deltagluconolactone, EINECS 202-016-5, Gluconic delta-lactone, D-Gluconic delta-lactone (+14 more)
Gluconolactone (CAS 90-80-2) is a cosmetic active ingredient functioning as Antioxidant; Chelating agent; Chemical reaction regulator; Flavouring and. NOAEL 560 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); 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, pharmaceutical, and food safety data.
US NotesCIR assessed glycolactones with maximum reported use concentration 15%. Safe as used. Not classified as AHA by CIR — PHA class has a distinct, gentler regulatory and safety profile. No photosensitivity concerns noted in clinical literature.
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Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Gluconolactone.
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Toxicological Studies
8 study endpoints found for Gluconolactone. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.
Endpoint
Value
Route
Species
Study Type
Source
NOAEL
500 mg/kg bw/day
oral
rat
Chronic
COSMOS DB
NOAEL
560 mg/kg bw/day
oral
hamster
Developmental
COSMOS DB
NOAEL
594 mg/kg bw/day
oral
rat
Developmental
COSMOS DB
NOAEL
695 mg/kg bw/day
oral
mouse
Developmental
COSMOS DB
NOAEL
780 mg/kg bw/day
oral
rabbit
Developmental
COSMOS DB
NOAEL
=560 mg/kg bw/day
oral
Hamster
reproduction developmental
ECHA
NOAEL
=594 mg/kg bw/day
oral
Rat
reproduction developmental
ECHA
NOAEL
=695 mg/kg bw/day
oral
Mouse
reproduction developmental
ECHA
Pre-Calculated Safety Assessment
Pre-calculated NOAEL → SED → MoS audit trail for Gluconolactone across SCCS product categories, with measured dermal absorption where available.
Dermal Penetration Profile
Skin absorption and penetration characteristics of Gluconolactone, relevant to systemic exposure and MoS calculations.
Absorption %
2-5%
Penetration Level
surface
Penetration Depth
stratum corneum
Molecular Weight
178.1 Da
Log P
-2.1
Systemic Absorption
minimal
Topical Bioavailability
1-3%
Safety Margin Factor
minimal
Vehicle Dependent
Yes — absorption varies by formulation
Source: Dermatol Surg 2004
ECHA REACH Registration
European Chemicals Agency REACH dossier and Substances of Very High Concern listing.
Registration Type
Full
Tonnage Band
1,000 - 10,000 tonnes
Substance Type
SUBSTANCE
SVHC Candidate
No
Function Categories & List Membership
Cosmetic/Chemical Function Categories
AntioxidantChelating agentChemical reaction regulatorFlavouring and nutrientFood preservativeFragranceHumectantLeavening agentPreservativeProcessing aids not otherwise specified
Regulatory List Membership (2)
EPA Safer Chemical Ingredients List (SCIL)FDA Substances Added to Food (EAFUS)
Editorial summary
Preliminary editorial summary for Gluconolactone — not a computed safety verdict. See the sourced toxicological data above.
Gluconolactone has a safety rating of "EXCELLENT" in our database. EU status: permitted. US status: permitted. 8 toxicological study endpoint(s) are available in our database.
Is Gluconolactone allowed in the EU?
Gluconolactone EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Gluconolactone do in cosmetics?
Gluconolactone functions as: Antioxidant; Chelating agent; Chemical reaction regulator; Flavouring and nutrient; Food preservative; Fragrance; Humectant; Leavening agent; Preservative; Processing aids not otherwise specified; Softener and conditioner; Solvent; pH regulating agent. It is classified as a Active Ingredient in our database. CAS number: 90-80-2.
What is the NOAEL for Gluconolactone?
The NOAEL (No Observed Adverse Effect Level) for Gluconolactone is 500 mg/kg bw/day based on a Chronic study via oral route in rat. A total of 8 study endpoints are available. Source: COSMOS DB.
Is Gluconolactone used outside cosmetics?
Gluconolactone also appears in industrial chemical safety, pharmaceutical, and food safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
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