A trial including 130 people with ocular rosacea found supplementation with omega-3 fatty acids (720 mg EPA + 480 mg DHA daily) was effective in reducing symptoms of dry eye (itching, burning, blurred vision, gritty sensation) compared to an olive oil placebo. The effects were notable after 3 to 6 months of supplementation.[1] Further research is needed to strengthen these findings.
Two small trials have assessed the effectiveness of zinc supplementation in rosacea. While one trial found symptom improvements over three months of supplementation, another trial found no improvements compared to placebo.[2][3] Currently, more evidence is needed to support the use of zinc for rosacea.
References
- ^Bhargava R, Chandra M, Bansal U, Singh D, Ranjan S, Sharma SA Randomized Controlled Trial of Omega 3 Fatty Acids in Rosacea Patients with Dry Eye Symptoms.Curr Eye Res.(2016-Oct)
- ^Sharquie KE, Najim RA, Al-Salman HNOral zinc sulfate in the treatment of rosacea: a double-blind, placebo-controlled studyInt J Dermatol.(2006 Jul)
- ^Bamford JT, Gessert CE, Haller IV, Kruger K, Johnson BPRandomized, double-blind trial of 220 mg zinc sulfate twice daily in the treatment of rosaceaInt J Dermatol.(2012 Apr)