What we know about DEHTP and other substitutes
Exposure to alternative plasticizers such as DEHTP is increasingly documented, but human health evidence remains limited and does not support treating every substitute as proven safer.

Earth Mama · Shampoo & wash
Current best-in-class pickAn unscented liquid castile wash with a short disclosed formula and a National Eczema Association Seal of Acceptance.
The exact 6.27-ounce wash explicitly excludes phthalates and synthetic fragrance, publishes every ingredient, and appears in the National Eczema Association directory.
Earth Mama explicitly excludes phthalates and synthetic fragrance from the exact wash, publishes its complete formula, and the National Eczema Association independently lists the product in its Seal of Acceptance directory.
The seal evaluates sensitive-skin suitability rather than publishing a quantitative finished-product phthalate test. This castile wash is not tear-free; take extra care around eyes. Coconut, shea, and calendula may still be individual allergens.
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Checked September 16, 2026
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Why the category matters
Exposure to alternative plasticizers such as DEHTP is increasingly documented, but human health evidence remains limited and does not support treating every substitute as proven safer.
Results varied by metabolite and developmental domain, while mixture analyses were not significantly associated with delay in most domains.