The 2018 Vivaltus Proprietary Blend from Ribera Del Duero, Spain, is a distinguished red wine that has garnered high praise from several professional reviewers. This wine, produced by Vivaltus, is crafted from old vine Tempranillo, including some pre-Phylloxera vines situated at altitudes between 750 and 1000 meters. The wine is aged in a mix of 25% new oak, 10% amphora, and the rest in neutral barrels, under the guidance of consultants Jean-Claude and Jeff Berrouet, with winemaker Montxo Martinez and owners Marcos and Carlos Yllera.

Robert Parker’s Wine Advocate awarded this wine a score of 95 points, noting its "elegant, subtle and insinuating" character. The review highlights its "leafy twist that gives it freshness" and "velvety tannins" while cautioning that it is still developing and would benefit from more time in the bottle.

Jane Anson also rated the wine 95 points, describing it as having "muscular, slate-hewn tannins" and a "rugged quality." She emphasizes its "serious tannic architecture" and the presence of "creamy raspberry and red cherry fruits, spiced aniseed, fennel and liquorice root." Anson finds the wine "totally moreish" and praises its balance and elegance.

Decanter gave the wine a score of 94 points, citing its "intensely fragrant" and "amazingly balanced" nature. The review mentions its "abundant tannins" and "power that offers good finesse," while also stating that it "needs several years in bottle to reach its full potential."

Vinous provided the highest score of 96 points, calling the wine "garnet-red in the glass" with a "nuanced nose" featuring "sour cherry, fresh plum and wild herbs framed by a cedar box." The review describes the palate as "dry and nimble, with polished, reactive tannins" and notes that it ends with a "thyme and bay leaf flourish."

James Suckling also rated the wine 96 points, noting that it is "a little closed with more mineral notes than the 2016 vintage." The reviewer, Zekun Shuai, praises its "excellent depth and purity from the fruit" and describes it as "medium-bodied on the palate with fine, polished tannins." Shuai suggests the wine is "delicious now, but better in one or two more years."

Overall, the 2018 Vivaltus Proprietary Blend is a highly acclaimed wine with excellent reviews highlighting its balance, elegance, and potential for further development.