See   Evening primrose

Evening primrose (Oenothera L.) is a plant belonging to the Onagraceae family and grows in the temperate zones of South and North America. Oenothera L. is a large genus with 145 species.

What it is used for and where

In this study, evening primrose was shown to promote the contraction of matrix collagen, actin polymerisation and the production of essential ECM proteins. These results confirm the therapeutic value of this plant in slowing down the progression of skin ageing (1).

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(1) Ceccacci S, De Lucia A, Tito A, Tortora A, Falanga D, Arciello S, Ausanio G, Di Cicco C, Monti MC, Apone F. An Oenothera biennis Cell Cultures Extract Endowed with Skin Anti-Ageing Activity Improves Cell Mechanical Properties. Metabolites. 2021 Aug 9;11(8):527. doi: 10.3390/metabo11080527.