While ketchup contains ingredients like tomatoes, vinegar, and sugar, none of these have properties that would demonstrably soften skin when used topically. In fact, the acidity of the vinegar and tomatoes could potentially be irritating for some people.
To soften your hands, it's best to use moisturizers specifically designed for skin. Look for ingredients like:
* Humectants: Draw moisture from the air to the skin (e.g., hyaluronic acid, glycerin).
* Emollients: Fill in gaps between skin cells to smooth and soften (e.g., shea butter, oils).
* Occlusives: Create a barrier to prevent moisture loss (e.g., petroleum jelly, beeswax).