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

Place into clean, dry shoes with the adhesive side down, positioned under the ball of the foot. Reposition or replace as the adhesive loses grip.

Slim clear gel cushions for the balls of the feet
Thin enough not to crowd the shoe
Non-slip technology, designed not to slide in the shoe
Discreet in open shoes
Fits comfortably in most women's shoes

For external use in footwear. Do not apply to broken or irritated skin. Keep out of reach of children. Discontinue use if rubbing or discomfort develops. If you have diabetes, poor circulation or reduced sensation in your feet, speak to a health professional before use.