Integrated time-indicating device during topical skin application

An applicator comprising:

• a body configured to house a fluid;
• an application member in selective fluid communication with the body;
• and
• a time-indicating device, wherein:
• the time-indicating device comprises a capillary component having a fluid path,
• the capillary component comprises a sorbent in fluid communication with the application member,
• the time-indicating device is configured such that fluid advancement along the fluid path provides at least a first observable signal,
• the first observable signal signifies a first certain application period and comprises a color and/or color intensity change of the sorbent, and
• the applicator is configured such that fluid advancement along the fluid path is visible to a user.

A method of applying a fluid to a surface, the method comprising:

• providing an applicator comprising:
• a body configured to house a fluid,
• an application member in selective fluid communication with the body, and
• a time-indicating device, wherein:
• the time-indicating device comprises a capillary conduit having a fluid path,
• the time-indicating device is configured such that fluid advancement along the fluid path provides at least a first observable signal signifying a first certain application period, and
• the time-indicating device further comprises a fluid signaling component provided in an actuatable container, wherein the actuatable container is in direct or indirect selective fluid communication with the capillary conduit such that upon actuation of the actuatable container, the fluid signaling component is transferred to the capillary conduit;
• actuating the applicator in order to apply the fluid to a surface;
• and
• observing the time-indicating device for the first observable signal.

A method of applying a fluid to a surface, the method comprising:

• providing an applicator comprising:
• a body configured to house a fluid,
• an application member in selective fluid communication with the body, and
• a time-indicating device, wherein:
• the time-indicating device comprises a capillary component having a fluid path,
• the capillary component comprises a sorbent in fluid communication with the application member,
• the time-indicating device is configured such that fluid advancement along the fluid path provides at least a first observable signal,
• the first observable signal signifies a first certain application period and comprises a color and/or color intensity change of the sorbent, and
• fluid advancement along the fluid path is visible to a user;
• actuating the applicator in order to apply the fluid to a surface;
• and
• observing the time-indicating device for the first observable signal.