About - All you need to know about dry skin and callous
... Dry skin
![Image](https://images-1.eucerin.com/~/media/hansaplast/international/instant-help/beauty-and-help/dry-and-callous/foot_with_dry_skin.jpg?rx=0&ry=0&rw=270&rh=215&hash=5B74A6C40F03279E9969AB2EEDD8A1D3)
... Callous
![Image](https://images-1.eucerin.com/~/media/hansaplast/international/instant-help/beauty-and-help/dry-and-callous/foot_with_callus.jpg?rx=0&ry=0&rw=270&rh=275&hash=6E2A7F445B3F8DA399E18AF95CCB5666)
![Image](https://images-1.eucerin.com/~/media/hansaplast/international/instant-help/beauty-and-help/dry-and-callous/med_hyperkeratosis.jpg?rx=0&ry=0&rw=270&rh=215&hash=610BC1DC9A95002B741035B8A73E3720)
It is mainly seen on the sole of the foot (palms of the hand and fingers can also be affected) and appears as a yellowish thickening. In most cases, it is painless. Once exposed to excessive and constant pressure, it can also get worse and crack (see also: Instant help for cracked heels). Little to moderate callus formation is nothing but a cosmetic or aesthetic problem; especially when wearing open shoes. Yet thickening of the affected areas can lead to painful and incommoding callus formation.
„It‘s a thin line between an aesthetic issue and an incommodity“
Medical background: The stratum corneum (cornea = horny skin/Lat.) is the uppermost layer of the epidermis. Between the cornified cells (corneocytes) lie the epidermal lipids. The horny layer - especially the bottom third - forms the permeability barrier, which is the skin‘s true barrier against exogenous factors and endogenous water loss.