Set includes Redken Acidic Bonding Concentrate Shampoo (300ml), Conditioner (300ml), Leave-In Treatment (150ml) and 24/7 Night & Day Serum (100ml). This concentrated system uses Citric Acid within a bonding care complex to help protect weakened bonds, reduce breakage and defend colour against fading. The pH‑balancing formulas help counteract the effects of colouring, lightening and heat styling for hair that looks and feels healthier. The leave‑in treatment provides heat protection up to 230°C, smooths, tames frizz and adds shine — apply to clean, damp hair and leave in. The 24/7 Night & Day Serum combines Polyglutamic Acid and Squalane to strengthen the fibre, help prevent breakage and deliver lightweight, no‑residue protection; users reported visibly healthier, stronger hair with improved softness and shine. Use the shampoo and conditioner together as a complete regimen. Avoid contact with eyes; rinse immediately if contact occurs.