BHT
- CAS
- 128-37-0
- EC
- 2048814
- PubChem CID
- 31404
- Molecular Formula
- C15H24O
- Molecular Weight
- 220.3500 g/mol
2,6-Di-tert-butyl-p-cresol
What does it do?
Used in the product as an antioxidant to prevent the oxidation of oils.
Details
2,6-Di-tert-butyl-p-cresol
BHT: How Safe Is This Cosmetic Preservative?
You have probably seen the abbreviation BHT on the ingredient list of a lipstick, moisturizer or toothpaste. Its full name is butylated hydroxytoluene. This synthetic antioxidant is used in both food and cosmetics to keep oils from going rancid.
Read the full guide →Function & Use
Antioxidant
Masking
Regulatory note
- EU 1223/2009 Annex IIIRestricted
What The Sources Say
IARC (International Agency for Research on Cancer)1
IARC Grup 3 - Kanserojenliği sınıflandırılamıyor. The available evidence is insufficient for a classification. This does NOT mean 'safe'; it means 'not enough data'. (Monograph volume: 40, Sup 7). Sınır: IARC TEHLİKE sınıflandırması yapar, RİSK değil - 'bir koşulda kansere yol açabilir' der, 'kozmetikteki kullanım seviyesinde kanser yapar' DEMEZ. Maruziyet yolu ve dozu ayrıca değerlendirilmelidir. Data is a 01/2021 snapshot.
ToxValDB (EPA Toxicity Value Database)11
EPA ToxValDB kanser değerlendirmesi: 3 - Not classifiable as to its carcinogenicity to humans. Caveat: this is an aggregated record; dose, species and route of exposure must be considered together.
EPA ToxValDB skin/eye data - endpoint: Skin Irritation, classification: SkinIrr2. Caveat: this is an aggregated record; dose, species and route of exposure must be considered together.
EPA ToxValDB skin/eye data - endpoint: Eye Irritation, classification: Category 2B. Caveat: this is an aggregated record; dose, species and route of exposure must be considered together.
EPA ToxValDB skin/eye data - endpoint: Skin Irritation, classification: Not classified. Caveat: this is an aggregated record; dose, species and route of exposure must be considered together.
EPA ToxValDB skin/eye data - endpoint: Skin Sensitization, classification: Classification not possible. Caveat: this is an aggregated record; dose, species and route of exposure must be considered together.
+6 more records.
Scientific References
- ChemSec SIN List, Substitute It Now (2026-04 (kayıtlı indirme, ürün sahibi verdi))ChemSec (International Chemical Secretariat)
- DEDuCT 3.0, Database of Endocrine Disrupting Chemicals and their Toxicity profiles (DEDuCT 3.0)Institute of Mathematical Sciences, Chennai
- EU Endocrine Disruptor Lists I, II, III (2026-04 update)edlists.org (Danish EPA on behalf of participating EU member states)
- IARC Monografları - Butylated hydroxytoluene (Grup 3 - Kanserojenliği sınıflandırılamıyor)IARC - WHO Uluslararası Kanser Araştırmaları Ajansı
- IARC Monographs, List of Classifications (agents classified, 2026-09 (Volumes 1-140))International Agency for Research on Cancer, WHO
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