After drying your hair, apply a keratin serum as this will enhance its effects and add a shiny finish. It was like we’d just had a professional conditioning treatment every time we used it, whether as a 30-minute, pre-shower pick-me-up, as a long-term, all-day mask, or as a two-hour set in. As hair becomes damaged, it needs all the help it can get to repair and boost its natural structure. Ingredients like argan oil, coconut oil, shea butter, vitamin E, and avocado oil are an amazing addition to a keratin formula.

Organic Argan Oil is rich in vitamin E, has a vitalising effect, and softens and moisturises the skin.

TRESemmé has been the official hair care sponsor of New York Fashion Week since 2006, and we’re proud to work with some of the most innovative hairstylists in the industry. Regular use of keratin hair masks can lead to long-term improvements in hair health, making it more resilient and manageable. Because of its Goldilocks consistency, it was easy to apply throughout our hair without much product falling to the shower floor, and we appreciated how painlessly we were able to integrate it into our haircare routine. Who should use it: In general, keratin is most beneficial for those with thick, damaged, frizzy hair. It's potent – and there is such a thing as too much protein – so save it for a once-a-fortnight treatment.

The extra-rich, mega-moisturising formula envelops hair in moisture, resulting in bigger, bouncier blow-dries with an unbelievably glossy shine. Our only real complaint was that those smooth, nourishing effects weren’t very long-lasting, so we had to keep using the mask regularly to sustain results.

When you heat-style your hair too often or undergo chemical treatments to make your hair look better or fancier, you might essentially strip your hair of its natural protein—keratin. For anyone looking for a little extra help maintaining the overall health of their hair and keep it looking shiny, vibrant and tangle-free, this mask will do exactly that. The mask also seemed to strengthen our ends and reverse some of the damage we experienced from heat styling.

This mask strengthens and nourishes your hair from root to tip, reduces static flyaways, and prevents roughness, making your hair smooth. Ultimate Reset is formulated with protein, so works to repair hair that's stretching out of shape due to bleach and heat. Though, that’s somewhat of a double-edged sword because, as Steinmetz points out, fragile strands can be overwhelmed by the harsh chemicals within an in-salon keratin treatment, not to mention the heat damage required to seal it in.

The ends were especially dead and flakey, to say the least, so it was in need of a major rescue — and this Drunk Elephant mask was our savior.