Billing itself as “a nonprofit research collective,” this unassuming Eagle Rock dispensary is as classy as they come. Their security team wears gabardine suits, for crissakes. Strictly by appointment only for first-timers, Cornerstone Collective feels way more like a traditional medical office setting than it does a swinging weed club. But it's not just the minimalist aesthetic and the formalized intake process that sets Cornerstone apart from your neighborhood stoner store — it's the product. Focusing on medicinal therapeutics and applications, Cornerstone offers the best of the best in high-end, cutting-edge cannabis products and paraphernalia. The knowledgeable staff goes the distance to explain the specifics of each strain and the numerous delivery methods that might work best for you, and offers intelligent recommendations based on a patient's pathologies and preferences. Plus, they sell the finest CBD oil in town. 15:1. Thick as molasses. Mmm.