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3% Dihydroxyacetone (DHA or Sunless Tanning Agent) Inhibits Vitamin D Production in the Skin in Response to Ultraviolet Light


Phase 4
19 Years
50 Years
Not Enrolling
Both
Vitamin D Status

Thank you

Trial Information

3% Dihydroxyacetone (DHA or Sunless Tanning Agent) Inhibits Vitamin D Production in the Skin in Response to Ultraviolet Light


Inclusion Criteria:



- males or females

- ages 19-50 with less than 16 oz milk per day

- less than 10 hours of sun per week

- no Vitamin D supplements

- no anticonvulsants

- no barbiturates

- no steroids

- no meds that increase photosensitivity

- no granulomatous disease

- no liver or kidney disease

- no history of skin cancer

- BMI less than 30

- skin types I & II

Exclusion Criteria:

- None

Type of Study:

Interventional

Study Design:

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Outcome Measure:

To measure the response of 25(OH)D to 40 milliJoules of UV-B light in white Caucasians with melanoidins-sunscreen from 3% DHA in comparison to the response of control subjects who have not used 3% DHA.

Outcome Time Frame:

1 month

Safety Issue:

No

Principal Investigator

Laura A Armas, MD

Investigator Role:

Principal Investigator

Investigator Affiliation:

Creighton University

Authority:

United States: Institutional Review Board

Study ID:

Creighton 7

NCT ID:

NCT00818467

Start Date:

May 2008

Completion Date:

February 2009

Related Keywords:

  • Vitamin D Status
  • Skin tone
  • Vitamin D

Name

Location
Creighton University Omaha, Nebraska  68131