You may already have discovered It's A 10 via Beauty Bible: we've been pretty wowed by this range since it landed here last year (we were first introduced to it via our friend Gill Sinclair at Victoria Health) – and, well, here's another wowzer addition to the growing line-up.

Hair is made of keratin. But with all that we do to it – washing, heat styling, colouring – it weakens. The Brazilion blow-dries raised awareness of the power of keratin – applied from the outside – to repair hair, and this range works along something of the same principle, infusing protein back into the hair with every wash. And it builds – which means that benefits are cumulative.

So: if your hair's weak, fragile, not as glossy as you'd like, this range has been designed to ride to the rescue. There are six products in all (including a version of It's A 10's famed Leave-In Conditioner), but for us, three are particular stand-outs...

• It's A Miracle Deep Conditioner Plus Keratin/£21 for 148ml – each of the It's A 10's Deep Conditioner/masks we've tried has been incredibly effective, but this the best yet. It can be used as a daily conditioner, or left on weekly for as long as you like to counter sun damage, heat damage, whatever damage.

• It's A Miracle Oil Plus Keratin/£21 for 88.7ml – one for your beach bag, because this shields against UV damage, also blocking humidity to guard against frizz. You can use it on damp hair, before styling, or glide over styled hair. Or – we'd suggest – smooth it through wet hair when poolside or beachside.

• It's A 10 Miracle Leave In Potion Plus Keratin/£18 for 100ml – do you heat-style your hair? This is the one for you, then. Use on wet or dry hair to lock in the moisture while helping to create the style, whether straight or curly.

And just like that, It's Another 10 From Us.

£17-21 – buy here

Prize Draws