Most likely or definitely true
False/misinformation
We’re not sure yetShampoo with formaldehyde
Shampoos with formaldehyde cause cancer
What you may have heard
Shampoo with formaldehyde is a carcinogen.
What science tells us
Many hair care products, such as shampoos and leave-in conditioners, contain formaldehyde or other variations, such as formalin and methylene glycol. When these products are heated, […]