For hair that has been chemically straightened or smoothed, such as keratin treatments, Brazilian blowouts and other straightening services, and for unruly, frizz-prone hair that needs a smoothing daily cleanse. Mon Platin also lists colour-treated straight hair. Suitable for any gender and for home use after a salon treatment.

Straightened hair tends to be both dry and fragile, and many shampoos either strip it or leave it heavy. Hyloren Smoother uses hyaluronic acid to put moisture back into the fibre and smooth the surface, with a sulfate-free base chosen so it doesn't work against a keratin or straightening service. It is a practical daily shampoo for keeping hair sleek and manageable for longer after the salon.

• Apply to wet hair.
• Lather and massage into the scalp and hair.
• Rinse thoroughly.
• Safe for daily use. Follow with Hyloren Smoother Hair Mask for extra smoothing.

Pros:

• Gentle SLS/SLES-free cleansing that Mon Platin says won't disrupt straightening treatments
• Targets frizz and flyaways while adding moisture
• Helps protect colour on straightened hair that is also coloured
• Unisex ambery scent

Cons:

• Formulated for smoothing, so it is not the right pick if you want extra volume (see the Hyloren Boosting Shampoo)
• Full ingredient list is not published online
• Best results come with the matching Smoother mask and serum, which is an extra purchase