HIITLab is where strength training meets energy, music, and mood. Set in a darker, high-vibe room with dynamic lighting and louder playlists, these classes create an immersive environment that helps you push harder, focus deeper, and stay fully in the moment. Using heavier weights, functional strength patterns, and controlled conditioning work, HIITLab is designed to build real power, boost endurance, and challenge your body in a way that feels athletic yet intentional. Every session is guided with clean form, smart progressions, and injury-aware coaching, so you get the intensity without compromising safety. It’s strong, fun, gritty, and deeply motivating — a signature Serenev experience with its own heartbeat.