dry the skin is.
A slight roughness may seem softer in a few nights.
Older calluses and cracks may require regular treatment for a week or two or more.
The original Remedy Daily article
Consistent use is recommended by the healing that occurs overnight instead, and medical guidelines similarly emphasize repeated hydration instead of a one-time treatment.
If the condition of the skin improves, the treatment can be continued several evenings a week for maintenance.
What about very thick calluses?
Vaseline is great for preventing moisture loss, but very thick,