Bar Keepers Friend:

According to the February 26, 2020 Safety data sheet (SDS), Bar Keepers Friend Cleanser contains:

• 85–94% glass oxide (CAS 65997-17-3),
• 5–10% oxalic acid (CAS 144-62-7), and
• 1–5% benzene sulfonic acid, mono C10–16 derivatives, sodium salt (CAS 68081-81-2).

Bon Ami:

The product called “original” contains only feldspar. For other products, the Bon Ami website lists the following as main ingredients: feldspar, limestone, water, baking soda, citric acid, corn alcohol, epsom salts, essential oils, and xanthan gum.