This is purely anecdotal but it’s got my wondering what other people think: I used to spend a ton on fancy hair care; it was all from Space NK, all the organic ingredients and minus all the “bad bits” — and my hair was not improving whatsoever. It wasn’t getting longer, it wasn’t any healthier and I couldn’t understand why. I ran out of it and ended up using my partner’s Tresemme that he buys on offer in Sainsbury’s and my hair never looked better. So I carried on just using that and months later my hair is genuinely so much longer and healthier. No other change in hair routine or anything?!