The primary objective of Part A is to compare the change in elasticity measurements at baseline and at 3 months between subjects who have had a resurfacing or tightening procedure and those who have not. The secondary objective for Part A is to develop baseline elasticity scores for ages 18-35, 36-50, and 51-65 and for Fitzpatrick skin types I-II, III-IV, and V-VI. The primary objective of Part B is to compare the age of the scar and surrounding tissue with the elasticity measurements.

Inclusion Criteria:

Part A:

• Subject is 18-65 years of age
• Subject scheduled to have resurfacing or tightening procedure done as Standard of Care (Arm 1, 25 subjects).
• The subject has the willingness and the ability to understand and provide informed consent for the use of their tissue and communicate with the investigator

Part B:

• Subject is 18 and over
• Subject has a linear surgical scar that is > 2cm.
• The subject has the willingness and the ability to understand and provide informed consent for the use of their tissue and communicate with the investigator

Exclusion Criteria:

Part A, Group 1:

-Subject is planning on having a cosmetic procedure done to their face during the 3 months they are participating in the study (Arm 2, 25 subjects).

Parts A and B:

• Under 18 years of age
• Pregnancy or Lactation
• Subjects who are unable to understand the protocol or to give informed consent
• Subjects with mental illness

Up to 350 subjects who meet the inclusion/exclusion criteria for either study Part A, Part B or both will be consented and enrolled with the goal of having 100 subjects complete Part A and 250 subjects complete Part B. Subjects will be recruited from the Dermatology Clinic at Northwestern University and other Northwestern University clinics.