Whether you are training at the gym or you get caught out in the rain, Hair Fibre Locking spray locks our natural keratin hair fibres in place all day long - even under water*. This light hold spray keeps your hair looking healthy and fuller while providing a completely natural shine, meaning you can go on about your day in confidence. The Hair Fibre Locking Spray uses patented waterproofing styling polymers, translucent shine enhancers and colour protecting UV filters that shield each hair fibre from colour damage. This ensures your hair stays looking thick and healthy all day. Nanogen Hair Fibre Locking Spray is especially formulated not to affect penetration of minoxidil or any other topical treatment. To use: 1.For a secure hold, hold the bottle 10cm from your hair and spray four times 2.To make your hair waterproof* hold the bottle 5cm away and spray eight times 3.If your hair gets wet, allow it to dry in the air without touching it, and then reapply your Nanogen Fibre Locking Spray * In clinical tests, 90% of hair fibres remained in place after five minutes under water.