Effects of Oral Supplement Containing L-Histidine and Antioxidants on the Skin Barrier Function and Systemic Inflammation in Rosacea

Inclusion Criteria: * Males and females 30 to 70 years of age * The presence of mild to moderate rosacea (erythematotelangiectatic or papulopustular) * High sensitivity C-reactive protein (hs-CRP) that is greater than or equal to 1.0 mg/L Exclusion Criteria: * The presence of severe rosacea as noted by the investigator global assessment. * Those who are unwilling to discontinue oral supplementation, or supplement ingredients found in the study's oral product 1 month prior to enrollment. * Discontinuation of oral L-glutamine or L-glutamine containing supplement 1 month prior to enrollment * Those who are unwilling to discontinue topical benzoyl peroxide or retinoids for 2 weeks prior to enrollment. * Those who are unwilling to keep their facial regimen the same throughout the study. * Individuals who have been on an oral antibiotic within the previous one month. * Individuals who are pregnant or breastfeeding. * Individuals who have changed any of their hormonal based contraception or therapies within 3 months prior to joining the study. * Individuals on oral contraceptive pills or progesterone or estrogen containing therapies. * Use of isotretinoin within the three months prior to enrollment. * Individuals on finasteride or dutasteride * Current tobacco smoker, smoker within the past year, or greater than 5 pack-year tobacco smoking history.