Fragrance free means the product you are purchasing has absolutely no fragrances added to it at all. This is different than a product that’s labelled as “unscented”. An unscented product can still have harmful chemicals and fragrances to cover up other odors in the product.
According to the EPA, the independent executive agency of the United States federal government tasked with environmental protection matters, “Fragrance-free means that fragrance materials or masking scents are not used in the product. Unscented generally means that the product may contain chemicals that neutralize or mask the odors of other ingredients” (source).
Another tip is to avoid products with words “fragrance,” “eau de toilette,” and “parfum” on the labels. These are catch-all terms for potentially hundreds of chemical ingredients that could irritate your skin and disrupt the natural hormones in your body.