The salt and sulphate free shampoo and conditioner duo helping keep hair soft

A shampoo and conditioner set designed for coloured, keratin-treated and extension hair has been reduced to £29.74 in a limited-time Amazon deal, with more than 1,000 bought in the past month. Customers have praised the NYK1 duo for leaving hair softer, shinier and easier to manage.

The NYK1 Salt and Sulphate Free Shampoo and Conditioner Set is currently 37 per cent off its £46.95 RRP, giving shoppers a saving of £17.21. The set contains two 500ml bottles, making it a sizeable option for anyone who regularly washes and cares for processed or treated hair.

One reviewer said their hair felt “much better” after using the NYK1 shampoo and conditioner, adding that the products had made it soft, shiny and manageable again. They finished with a straightforward recommendation for both products.

Another customer was similarly positive, describing the NYK1 haircare set as an excellent product that left their hair feeling soft and tangle-free. They also found it easier to blow dry their hair into the style they wanted, while praising the fresh scent with hints of coconut.

The appeal of the sulphate-free shampoo and conditioner is that it is specifically designed for hair that has undergone treatments such as Brazilian keratin straightening, colouring or extensions. NYK1 says its formula is intended to help preserve treatments, bonds and colour without stripping the hair.

That makes the duo particularly relevant if you have spent money on a salon treatment and want to maintain the results for as long as possible. The brand says the products are designed to gently cleanse without compromising keratin treatments or causing premature shedding from extensions.

The formula is free from salt, sodium, sulphates and parabens, according to the product listing. NYK1 positions this as a gentler alternative for processed hair, with the shampoo and conditioner duo designed to cleanse, condition and moisturise without leaving hair feeling stripped.

For anyone dealing with frizz, the conditioner is intended to provide moisture and help leave hair feeling smoother, while the shampoo is designed to clean without removing too much moisture. NYK1 says the set can be used across fine, thick, curly, straight, natural and heavily processed hair.

The two 500ml bottles also mean there is plenty of product in the set, although exactly how long they last will depend on hair length, thickness and how frequently you wash it. One reviewer noted that they did not need to use much, which they felt added to the overall value.

The NYK1 shampoo and conditioner could therefore make sense for anyone looking for dedicated aftercare for coloured hair, extensions or keratin treatments without having to buy two separate products. It is also worth remembering that individual hair and scalp needs vary, particularly if you have a specific treatment or extension system with its own aftercare requirements.

At £29.74, the NYK1 set is £17.21 below its stated £46.95 RRP. The deal is marked as limited time, while Amazon currently shows more than 1,000 bought in the past month, so the promotional price could change.

For anyone trying to keep salon-treated hair looking fresh between appointments, the £29.74 NYK1 shampoo and conditioner set offers two 500ml bottles formulated without sulphates, salt, sodium or parabens, with reviewers particularly pleased by the softness, shine and manageability they experienced.