‘Trade in 1, Get 2 Free’- now that’s math I like to do, especially when it coincides with restoring my lack-lustre, dried out hair and promising me supple, healthy, smooth locks.

On September 29th, for one day only, Ojon at John Lewis are giving away one shampoo and one conditioner from their Damage Reverse range when you hand over one of your empty bottles. The brilliant thing is that the bottle can be from ANY brand and no other purchase is necessary, thus you get to reap the benefits of expert conditioning agents such as Buriti Oil, Murumuru Butter and Wheat Protein and renowned Ojon Oil for merely recycling your old rubbish. Getting £41.50 worth of professional products AND giving back to the environment- this equation keeps on getting better and better. My teachers were right; maths has become useful down the line.

In case you weren’t fervently typing the date into your blackberry already the clinical studies to support the Damage Reverse range boast that 90% of women claim after using the products their hair looked instantly healthy. I’ll see you in the queue.