Ingredient

BHT (Butylated Hydroxytoluene)

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What is BHT (Butylated Hydroxytoluene)?

BHT, or Butylated Hydroxytoluene, is a synthetic antioxidant used to preserve fats and oils in various products by preventing them from becoming rancid. It is created through a chemical reaction between p-cresol and isobutylene.

BHT is widely used in food, cosmetics, and pharmaceuticals to extend product shelf life. While some animal studies have raised concerns about its safety, particularly related to its long-term consumption, the evidence in humans remains mixed. The doses used in products are generally considered low and safe for the general population.

When you see BHT on a label, it usually indicates that the product has been treated to maintain freshness and protect its quality over time.

Commonly found in: body lotion, fragrances, cosmetics, processed foods, pharmaceuticals

What to watch

Animal studies have suggested potential carcinogenic effects at high doses.
Some studies indicate it may cause allergic reactions in sensitive individuals.

Benefits

Effectively prolongs the shelf life of products by preventing oxidation.

FDA

BHT is recognized as Generally Recognized As Safe (GRAS) when used as a food preservative within specified limits.

Research

Research findings are mixed, with some studies indicating potential risks at high doses, while others show no significant negative effects at typical exposure levels.

Vegan

BHT is a synthetic compound and not derived from animal sources, generally acceptable in vegan products.

Sources: Food Additive Status List

Scout's take

Synthetic antioxidant. Possible endocrine disruptor (mild estrogenic activity in cell studies); banned as a food additive in several countries. Restricted in California Prop 65 listings for some uses.

More from Scout's analyses

Synthetic antioxidant with endocrine-activity signals in animal studies; cleaner alternatives (tocopherol, Tinogard TT) exist and are used by competitors. Tocopherol is also present in this formula, making the BHT the redundant, dirtier choice.

from the analysis of Louis Vuitton Ombre Nomade Eau de Parfum

Synthetic antioxidant. EU SCCS lists as a category-2 endocrine disruptor candidate. Banned or restricted in several countries. Cleaner alternatives (tocopherol, rosemary extract) are widely available.

from the analysis of Gold Bond Healing Hydrating Lotion Aloe