SGS Clinical Studies, Dallas Qualifications

Do I Qualify for a Clinical Study?

COVID Information

We’ve gathered information regarding how we are protecting our participants and ourselves against coronavirus. Please read this important information to learn what we expect from participants during this time. 

General Requirements for Studies

General Health

Must be in general good health (physical, mental, and social well-being, not merely the absence of disease/infirmity).

Allergies to Skin Care Products

Cannot have been diagnosed with known allergies to skin care products.

Cancer History

Cannot have a history of skin cancer within the past 5 years.



Cannot be currently using or having regularly used corticosteroids (systemic or topical, not nasal or ocular) within the past 4 weeks (including but not limited to betamethasone, clobetasol, desoximetasone, diflorasone, fluocinonide, fluticasone, mometasone, halcinonide, and halobetasol).


Must be willing to have measurements taken on the test area with bioinstruments that may touch the skin.

Testing Area Restrictions

Cannot have any health condition and/or pre-existing or dormant dermatologic disease on the areas being tested (eg, psoriasis, rosacea, acne [moderate to severe acne, acne nodules, or cysts], eczema, seborrheic dermatitis, severe excoriations, etc). This will change if the study is for acne, psoriasis, eczema and rosacea.

Cannot have observable sunburn, suntan, scars, nevi, excessive hair, tattoos, unremovable jewelry, or other dermal conditions on the areas being tested. 


Cannot have started a long-term medication within the last 2 months.

Diagnosed Diseases

Cannot have any diseases such as asthma, diabetes, epilepsy, high blood pressure or a high/low thyroid that is not controlled by diet or medication. This can vary based on study.


Immune Deficiencies & Medications

Cannot have a history of immunosuppression/immune deficiency disorders (including HIV infection, AIDS, multiple sclerosis, Crohn’s disease, rheumatoid arthritis), organ transplant (heart, kidney, etc), or currently using oral or systemic immunosuppressive medications and biologics (eg, azathioprine, belimumab, Cimzia®, Cosentyx®, cyclophosphamide, cyclosporine, Enbrel®, Humira®, Imuran®, Kineret®, mycophenolate mofetil, methotrexate, Orencia®, prednisone, Remicade®, Rituxan®, Siliq™, Simponi®, Stelara®, Taltz®) and/or currently undergoing radiation or chemotherapy.


Pregnancy and Breast Feeding

Females only- Cannot be nursing, pregnant, or planning to become pregnant during the study. 

Planned Surgeries or Procedures

Cannot have any planned surgeries or invasive medical procedures during the study. Non-invasive medical procedures or surgeries will be reviewed.

Participation in Concurrent Studies

Cannot be currently participating in any other clinical trial at Stephens, another research facility, or doctor’s office or have participated in any clinical trial involving the test area within 2 or 4 weeks (the number of weeks depends upon the study) prior to inclusion into the study at Stephens, at another research facility or doctor’s office.


Additional requirements for Anti-aging Studies 

Facial Treatment Restrictions

Must not have had any facial treatments in the past 6 months and are willing to withhold all facial treatments during the course of the study including facials, facial peels, photo facials, laser treatments, dermabrasion, botulinum toxin (Botox®), injectable filler treatments, intense pulsed light (IPL), acid treatments, tightening treatments, facial plastic surgery, or any other treatment administered by a physician or skin care professional designed to improve the appearance or firmness of facial skin. Waxing and threading are allowed but not facial laser hair removal. 

Medication Restrictions

Cannot be currently using or have used any of the following medications within the noted time frame prior to the study start (time frames can vary based on study):

  • Oral isotretinoin (Accutane®) within the last 6 months


  • Avita®, Differin®, Renova®, Retin-A®, Retin-A Micro®, Soriatane®, or Tazorac®within 3 months
  • Prescription-strength skin lightening products (eg, hydroquinone, tretinoin, alpha/beta/poly-hydroxy acids, 4-hydroxyanisole alone or in combination with tretinoin, etc) within 3 months.

  • Any anti-wrinkle, skin-lightening, or other product or topical or systemic medication known to affect skin aging or dyschromia (eg, products containing alpha/beta/poly-hydroxy acids, emblica extract, gigawhite, hydroquinone, lemon juice extract [topically], Q-10, soy, systemic or licorice extract [topically], Tego®Cosmo C250, vitamin C, etc) within 2 weeks.