Sally Hansen publishes 3 simple steps to soften your soles.
It’s easy: Soak. Exfoliate. Moisturize.
Soak your feet to soften the skin. Next, exfoliate with a foot scrub. Then smooth with a pumice stone. Finish by washing and drying feet thoroughly.
Of course they also want to promote their products, I thought that you might wanted to know that these feet products exist:
For extra soft skin, apply a foot moisturizer such as Sally Hansen Moisturizing Foot Creme. And for extremely cracked heels, moisturize feet overnight using a product like Sally Hansen Overnight Heel Repair.