The impact of topical Saint John & #39;s Wort (Hypericum perforatum) treatment on tissue tumor necrosis factor-alpha levels in plaque-type psoriasis: A pilot study

Conclusions: H. perforatum ointment can help decrease PASI scores and TNFα levels in psoriatic tissue. Its efficacy is probably related to its effect on lowering cytokines including TNFα.
Source: Journal of Postgraduate Medicine - Category: Internal Medicine Authors: Source Type: research