Not applicable. This is a gel device, not a topical product.
Source: Scholl product information.

Position between the toes as required. Wash with soap and water after use and allow to dry before reusing.

Designed for overlapping toes
Cushions the pressure point between toes
Clear and discreet in open shoes
One size, no sizing decision
Washable and reusable

For external use on feet. Do not apply over broken skin, open wounds or infected areas. Keep out of reach of children. Do not wear so tightly that circulation is restricted. Discontinue use if the area becomes more painful, red or swollen. If a toe deformity is worsening, see a podiatrist. If you have diabetes, poor circulation or reduced sensation in your feet, speak to a health professional before use.