Sulfates, such as sodium lauryl sulfate and sodium laureth sulfate, are aggressive detergents used in many shampoos. They strip the hair of its natural oils, leading to dryness, frizz, and potential irritation of the scalp.

Parabens, including methylparaben and propylparaben, are commonly used as preservatives in personal care products.

Phthalates are a group of chemicals often hidden in fragrances. These compounds are known to interfere with the endocrine system, potentially causing hormonal imbalances.

While silicones can provide a temporary shine, they can accumulate on the hair, making it heavy and less responsive to nourishing ingredients.

DEA is a foaming agent and emulsifier used in shampoos. It can be harsh on the scalp and has the potential to cause skin and eye irritation.

Formaldehyde and formaldehyde-releasing preservatives are used in some hair care products for their antimicrobial properties. However, formaldehyde is a known carcinogen and can cause respiratory and skin irritation.

Triclosan and triclocarban are antimicrobial agents often found in personal care products, including shampoos. These chemicals have been associated with concerns about contributing to antibiotic resistance.

Talc is a silicate mineral that is mined from the earth. While talc itself is not harmful, it is often mined in close proximity to asbestos, and therefore can be contaminated. The process of mining talc carries the risk of contamination with asbestos, a cancer-causing substance that should not be inhaled.

Mineral oil is derived from crude oil and is commonly found in some hair care products. Mineral oil prevents moisture loss and hinders the natural process of moisture absorption.

BHA is a synthetic antioxidant used to extend the shelf life of products. This compound has raised concerns about potential endocrine disruption and toxicity.

NPE is a surfactant with potential environmental impacts, and its use has been associated with concerns about aquatic toxicity.

Microbeads, often used for exfoliation in some hair care products, are tiny plastic particles that contribute to environmental pollution. These tiny plastic particles contribute to pollution and may harm aquatic life.