Excellent Cosmetic Ingredient NOAEL Data

PPG-33

CAS Number
25322-69-4
Function
Skin conditioning, Humectant, Viscosity controlling
Safety Rating
EXCELLENT

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted; CIR: PPGs โ‰ฅ3 safe as used when formulated to be non-irritating

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

Safety Data

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

Calculate MoS for your specific formulation with the MoS Calculator.

Toxicological Studies

6 study endpoints found for PPG-33. 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 1000 mg/kg bw/day oral rat Subchronic COSMOS_DB
NOAEL 250 mg/kg bw/day oral dog Subchronic COSMOS_DB
dose_tested 1000 mg/kg bw/day oral rat Subchronic COSMOS_DB
dose_tested 250 mg/kg bw/day oral dog Subchronic COSMOS_DB
NOAEL 1000 mg/kg bw/day oral rat oral REACH
NOAEL 1000 mg/kg bw/day oral code:3544 oral REACH

Expert Verdict

No ethoxylation means no 1,4-dioxane concern; one of the safest PPG variants with minimal expected propylene oxide residuals.

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Concern Level: None

Regulatory Flags

epa_safer_alternative ifra_fragrance fda_food_additive

Frequently Asked Questions

Is PPG-33 safe in cosmetics?

No ethoxylation means no 1,4-dioxane concern; one of the safest PPG variants with minimal expected propylene oxide residuals. The EU classifies PPG-33 as "permitted". Safety rating: EXCELLENT. 6 toxicological study endpoint(s) are available in our database.

Is PPG-33 allowed in the EU?

PPG-33 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does PPG-33 do in cosmetics?

PPG-33 functions as: Skin conditioning, Humectant, Viscosity controlling. It is classified as a cosmetic ingredient in our database. CAS number: 25322-69-4.

What is the Margin of Safety for PPG-33?

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.

What is the NOAEL for PPG-33?

The NOAEL (No Observed Adverse Effect Level) for PPG-33 is 1000 mg/kg bw/day based on a Subchronic study via oral route in rat. A total of 6 study endpoints are available. Source: COSMOS_DB.

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