The Pillar Ultra Immune C is a premium vitamin C and immune support supplement from Australian performance brand Pillar — formulated for athletes who want to maintain immune resilience during high training loads. Intense cycling training can temporarily suppress immune function, and Pillar's research-backed formulation supports recovery and reduces the risk of illness during peak training blocks. Four units in stock at €45 at Kaptein — a smart addition to any serious cyclist's supplement routine.
