a plant called a Buddleja japonica
箱根空木という植物 - EDR日英対訳辞書
The anti-saccharification agent, an anti-aging agent, a damage inhibitor of skin collagen, and an inhibiting, preventing or improvement agent for fall of firmness or elasticity of skin, or a wrinkle of skin includes Buddleja axillaris leaf extract as an active ingredient. ブドレジャアキシラリス葉抽出物を有効成分として含む抗糖化剤、抗老化剤、皮膚コラーゲンの損傷抑制剤、又は肌の張り若しくは弾力の低下、又は皮膚のしわ、の抑制、予防、又は改善剤。 - 特許庁