4% Quassia amara topical gel

[Guide]

Quassia amara image courtesy of Wikimedia Commons

"In another single-center, open-label study, a group of 30 patients with rosacea of variable severity were treated with 4% Quassia amara extract topical gel for 6 weeks. Reportedly, Q. amara possesses antiparasitic and anti-inflammatory properties that have the capability to decrease the inflammatory response with few complications. Efficacy comparable with that of first-line topical treatments like azelaic acid and metronidazole was observed after Q. amara treatment, with superb tolerability."

Clin Cosmet Investig Dermatol. 2015; 8: 159–177.
Published online 2015 Apr 7. doi:  10.2147/CCID.S58940
PMCID: PMC4396587
Update on the management of rosacea
Allison P Weinkle, Vladyslava Doktor, and Jason Emer

We need more studies about this.