Ingredient deep-dive

BHT / BHA: Is It a Microplastic?

Low concernPlasticiser / chemical of concern

Synthetic antioxidants — co-occurrence flag in plastic-heavy formulas.

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BHT / BHA — common questions

Is BHT / BHA a microplastic?

Borderline. Synthetic antioxidants — co-occurrence flag in plastic-heavy formulas.

Related ingredients

Parabens

Plasticiser / chemical of concern · Medium concern

Preservatives flagged for endocrine activity; commonly co-occur with plastic polymers in synthetic formulas.

Phthalates

Plasticiser / chemical of concern · High concern

Plasticisers used to soften plastic, banned from many products. Strong endocrine disruptors.