As any of these ingredients caused worsening of flushing: Cystine, Méthionine, Spiruline, Vitamine B5, Vitamine B6, Biotine (B8), Vitamine PP and Zinc, for hair and not rosacea.
Since 5 days ago taking a supplement it seems i have more continuous facial flushing/warmth along the day, and more easy to flush/blush, nothing more severe in term of redness than before but more permanent/continuous than before. Does it make any sense? I took it in the past but dont remember any impact on flushing. Just coincidence? I dont see any "harm" in the ingredients listed, might be wrong.