Parabens:

They mimic estrogen in the body, which may contribute to hormone disruption. This has raised concerns about links to breast cancer and reproductive issues. 

Found in: Cosmetics + skincare products as preservatives.

Phthalates: 

They mimic estrogen in the body, which may contribute to hormone disruption. This has raised concerns about links to breast cancer and reproductive issues. 

Found in: Fragrances, plastics, + personal care products.

Sulfates:

Sulfates can strip the skin and hair of natural oils, leading to dryness and irritation. 

Found in: Body washes, + other cleansing products

Formaldehyde:

It's a known carcinogen. Prolonged exposure has been linked to respiratory issues, skin irritation, and even cancer with long-term use or high exposure. 

Used as: A preservative in cosmetics.

Silicones:

They can create a barrier on the skin and hair that traps dirt, oil, and bacteria. This buildup can clog pores, leading to breakouts. 

Found in: Hair + skin products to provide smoothness + shine.

Oxybenzone + Octinoxate:

These chemicals are endocrine disruptors and may be absorbed into the skin, potentially leading to hormone imbalances. 

Found in: Anti-aging, cosmetics, and sunscreens.