Turmeric and Curcumin on Sebum Production

University of California (UC) Davis

Status: Completed

Conditions: Inflammation; Skin

Treatments: Dietary Supplement: Turmeric tablets; Dietary Supplement: Curcumin and Bioperine tablets; Dietary Supplement: Placebo tablets

Study type: Interventional

Funder types: Other

Identifiers

NCT03066791

850932

Details and patient eligibility

About

A noticeably increasing number of patients are asking for naturally based extracts and ingredients as supplementary dermatologic remedies. Patients are seeking natural and cost-effective skin care alternatives in place of prescription medications and procedures. Our study will evaluate the effects of oral curcumin and turmeric on sebum production in healthy subjects.

Full description

Turmeric extracts and curcumin have been shown to be safe, even at high doses without significant side-effects. Previous clinical studies in other inflammatory skin diseases have shown that a dosage of curcumin at 6,000 mg daily was effective while lower doses were not. In a human phase I clinical trial examining the effects of high dose curcumin in preventing premalignant lesions, even curcumin doses as high as 8,000 mg/day resulted in no toxic effects after 3 months. This study will involve participant ingestion of 6,000 mg/day of turmeric or curcumin to assess how this affects their sebum production.

The investigators will also be collecting stool from the study subjects, and examining how the curcumin and turmeric may modulate their gut microbiome. The investigators will specifically be looking to see if curcumin or turmeric have any changes on the gut flora towards bacteria that produce more short chain fatty acids. Certain bacteria that make up the microbiome produce short chain fatty acids, such as butyrate and propionate, which have demonstrated anti-inflammatory properties. Thus, it would be interesting to see if turmeric or curcumin exert any of its anti-inflammatory effects via modulation of the microbiome.

Enrollment: 30 patients

Sex: All

Ages: 18 to 50 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Age 18 to 50 years of age, and
2. Subject must be able to read and comprehend study procedures and consent forms.

Exclusion criteria

1. Subject should be generally healthy and have no smoking history in the past one year, and must have no history of diabetes, metabolic syndrome, known cardiovascular disease, malignancy, kidney disease, or chronic steroid use.
2. Those who used topical medications in the past two weeks or systemic antibiotics or oral probiotics within one month of starting the study.
3. Subjects who are postmenopausal
4. Those who are pregnant or breastfeeding.
5. Those that are prisoners or cognitively impaired.
6. Those who have a known allergy to black pepper should not participate in this clinical trial, since one of the treatments consists of tablets containing a small amount (1.25mg/tablet) of black pepper.
7. Those that are taking angiotensin converting enzyme inhibitor medications or angiotensin receptor blocker medications for any reason.

Trial design

Primary purpose: Basic Science

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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30 participants in 3 patient groups, including a placebo group

Turmeric group

Active Comparator group

Description:

Turmeric Tablets: Each tablet contains 1,000 mg of Turmeric (Curcuma Longa) per tablet. Dose: subjects will take 6 tablets per day, with a total daily dose of 6,000 mg. Supplied by Sabinsa Corporation

Treatment:

Dietary Supplement: Turmeric tablets

Curcumin Group

Active Comparator group

Description:

Curcumin and Bioperine tablets: Each tablet contains 1,000mg Curcumin + 1.25mg black pepper. Dose: subjects will take 6 tablets per day, with a total dose of 6,000mg curcumin. Supplied by Sabinsa corporation

Treatment:

Dietary Supplement: Curcumin and Bioperine tablets

Placebo Group

Placebo Comparator group

Description:

Placebo tablets made to look like the turmeric and curcumin tablets Each placebo tablet will contain: microcrystalline cellulose, dicalcium phosphate, PVPK30, sodium starch glycolate, magnesium stearate, OpaDry orange coating. Dose: subjects in this group will take 6 placebo tablets per day

Treatment:

Dietary Supplement: Placebo tablets