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Toxic Ingredient of the DayDay 4 of 50

Sunday, February 22, 2026

Parabens

Also known as: methylparaben, ethylparaben, propylparaben, butylparaben, isobutylparaben

Hormone Disruptor
Hazard Score
8
Avoid

1 = low concern, 10 = avoid

Quick Facts

8/10

Hazard Score

13

Products Found

Restricted

Regulatory Status

5

Known Aliases

Why You Should Care

A class of synthetic preservatives used to prevent microbial growth in cosmetics and personal care products. Parabens can mimic estrogen in the body, raising concerns about endocrine disruption and links to breast cancer.

Top Health Concern

Endocrine disruptors that mimic estrogen and may interfere with hormonal function.

Source: Darbre et al., Journal of Applied Toxicology, 2004 — parabens detected in breast tumor tissue

+3 more health risks documented. Read full analysis

The Numbrrrz Alternative

Numbrrrz products are 100% paraben-free, preserved naturally with vitamin E (tocopherol) — no synthetic preservatives needed.

tocopherol (vitamin E)rosemary extractgrapefruit seed extractsodium anisatepotassium sorbate

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Four organic ingredients. Zero toxins. The lip balm your body deserves.