Oh! Juice Siam Square One
SS3035 ชั้น 3A 3009 388 Rama I Rd, Pathum Wan, Bangkok 10330
The OKJ Group backing matters more than it sounds: listed companies have audited supply chains, which is a genuine differentiator in a market full of mall juice counters that swap ingredients quietly when stock runs low. The 180-270 THB price point is fair for what lands in the cup. This writer thinks the floor 3A position near the BTS connector is the location's strongest asset, not the menu, because it captures foot traffic that would not otherwise stop for a 270 THB smoothie.
Oh! Juice arrived at Siam Square One on September 2, 2024, occupying a counter on floor 3A near the BTS Siam connector. The brand sits inside OKJ Group's portfolio alongside Oh Ka Jhu restaurants, a structure that gives it direct access to the parent company's sourcing network and recipe development team rather than relying on third-party suppliers.\n\nThe menu policy is strict: no added sugar, no artificial additives, fresh fruit and organic vegetables only. Every blend is fortified depending on the formulation, with options spanning protein, fiber, collagen, and vitamin C. The Ocean N Earth smoothie, priced at 270 THB, combines almond milk, coconut yogurt, fresh coconut water, avocado, and Blue Majik spirulina extract. That last ingredient is what gives the cup its signature deep teal gradient that shifts toward indigo near the base, a visual that reads clearly from across the counter. The Acai Antioxidant build layers acai with a shea jelly base at the bottom, creating a contrast between the dense, slightly tart upper portion and a firmer, chewier finish.\n\nPrices run 180 to 270 THB per cup.\n\nOne practical caveat: customers have flagged a mismatch between the LINE ordering app and actual in-store stock, particularly around avocado availability. Confirming ingredient availability at the counter before ordering is the safer approach if a specific item matters to you.\n\nOperating hours are 10AM to 9PM daily, per the venue's Google listing. That window covers both the mid-morning post-workout window and the late-afternoon student crowd that Siam Square One draws from the nearby universities.