Certo: What It Is, What's in It, and How It Works

A home remedy for arthritis, Certo is a Jello-like substance that has grown in popularity over the years. It's primarily used to make jams and jellies, but it also serves as a medical pain reliever.

Pectin

• Certo is made from pectin, a natural ingredient found in plant cells. Commonly used to make jellies and jams, pectin in Certo is reported to help reduce arthritis-based joint-swelling in hands.

Production

• Certo liquid pectin is produced from lime peels native to Mexico. The under-ripe lime peels have the greatest amount of pectin, while the fully ripe peels have the least.

Lime Peels vs. Apples

• North America extracts Certo from lime peels while the United Kingdom uses a different approach, extracting pectin from leftover mash from crushed apples.