NYK1 StraightBond Keratin Hair Treatment Kit (with Aftercare Set)

• ⁠⁠STRAIGHTENS AND NOURISHES HAIR, FOR SMOOTH RESULTS ON ANY HAIR TYPE - Formulated to straighten, smooth, and deeply condition the hair for salon-quality results at home. It tames frizz, repairs damage, and restores shine while promoting healthier, more manageable strands. Safe and effective for all hair types including curly, wavy, thick, or chemically treated. This hair straightening treatment leaves your hair sleek, soft, and revitalised. For men and women.
• REPAIRS HAIR TO REVEAL VISIBLY HEALTHIER, STRONGER STRANDS - The NYK1 StraightBond keratin treatment is designed to repair dry, damaged, or chemically treated hair by temporarily re aligning the protein bonds and sealing the cuticle shut. It strengthens weak strands from within, helping to reduce breakage and dullness. With continued use, hair appears shinier, smoother, and noticeably stronger - restoring its natural elasticity, softness, and resilience. Ideal for damaged or over-processed hair.
• FRIZZ-FREE, GLOSSY HAIR THAT STAYS SMOOTH FOR MONTHS - Achieve long-lasting results with our deep conditioning hair treatment that eliminates frizz and adds intense shine. The advanced formula locks in moisture and creates a humidity-resistant barrier, keeping hair sleek, glossy, and manageable for up to 3-5 months. Whether you have curly, wavy, or textured hair, enjoy effortless styling and a polished look every day without heat damage or daily flat ironing.
• LOCKS IN MOISTURE, REDUCING BREAKAGE AND SPLIT ENDS - NYK1 StraightBond brazilian keratin treatment seals the cuticle shut locking in moisture and reinforcing the hair’s internal structure, it helps minimise split ends and breakage from heat or styling stress. Hair feels softer, looks smoother, and becomes noticeably easier to manage over time.
• AFTERCARE SHAMPOO & CONDITIONER INCLUDED FOR LONGER-LASTING RESULTS - Our complete keratin kit includes the NYK1 Salt and Sulphate Free aftercare shampoo and deep conditioning hair treatment set to preserve the longevity of your treatment and help maintain smoothness, shine, and frizz control. Regular use supports longer-lasting results while keeping hair hydrated, healthy, and easy to manage.
• EFFORTLESS APPLICATION WITH CLEAR, GUIDED STEPS - Designed for easy at-home use, our complete keratin kit includes easy step-by-step instructions that guide you through the entire process. Whether you're a first-time user or experienced with a keratin treatment or split end treatment, the clear directions ensure an effortless application with professional-quality results. No salon visit required - just sleek, frizz-free hair in the comfort of your own home.

Delivery Charges

UK & Northern Ireland

Delivery is FREE of charge for all orders in the UK.

Orders placed before 2pm will be dispatched same day.  Any orders placed after 2pm will be dispatched the next day, excluding Friday, Saturday and Sunday where the order will be dispatched on Monday.

All standard orders will be delivered with 1-2 working days of dispatch.

Need it in a hurry?  We offer a next day delivery service* for just £4.95.  Or order over £60 and get FREE next day delivery*.

*For Next Day Delivery - Orders must be placed before 2pm Monday - Friday. 

International Delivery                     

We deliver to over 100 countries worldwide.

*Small Parcel Tax (France & Selected Regions)

Orders shipped to France, Monaco, Guadeloupe, Martinique and Réunion with a value between £75 and £150 qualify for free shipping, however a small £2 charge may apply to cover the government-imposed small parcel tax (Taxe Sur Les Petits Colis / TPC). This charge will be shown at checkout.

For all small/ lightweight orders under 500g delivery cost is £7.50

LashForce 80g
BrowForce 80g
NailBond 60g
Megafile 130g
TanForce 300g

For all heavier items of 500g+ delivery cost is £9.95

i.e. Shampoo 600g, Shampoo & Conditioner Duo 1.2kg                      

We reserve the right to change these costs at any time depending on the courier and rates. International orders are subject to weight, if the order is over 5 Kg an additional charge may apply. We may contact you should the rate chosen is insufficient or incorrect after the purchase has been made.

We use 3rd party couriers and are bound by their terms of service. Delivery times are provided as guide only from the 3rd party providers. Exceptions from the courier may delay your NYK1 order.

Returns

For UK website orders, you may return unopened and unused products within 14 calendar days after receipt for a full refund (excluding shipping and handling fees). For international website orders, you may return unopened and unused products within 30 calendar days after receipt. Please contact us via info@nyk1.com to inform us of your return.

Any products deemed to have been used will unfortunately not be re-salable and therefore we will be unable to offer a refund/ replacement or exchange.

For any products that are damaged on receipt or you are not completely satisfied, please contact us immediately at info@nyk1.com and we will put it right.

Clarifying Shampoo: Aqua (Water), Disodium Laureth Sulfosuccinate, Cocamidopropyl Betaine, Sodium Lauryl Sulfoacetate, Decyl Glucoside, Glycerin, Polyquaternium-7, Tetrasodium Glutamate Diacetate, PEG-150 Distearate, PEG-40 Hydrogenated Castor Oil, Cocos Nucifera (Coconut) Oil, Parfum, Mentha Piperita Oil, Potassium Sorbate, Sodium Benzoate, Sodium Phytate, Disodium EDTA, Citric Acid. (Parfum Contains: Benzyl Benzoate, Coumarin).

StraightBond: Aqua (Water), Glyoxylic Acid, Stearyl Alcohol, Ceteareth-20, Glyceryl Stearate SE, Cetyl Alcohol, Cetearyl Alcohol, Cetrimonium Chloride, Propylene Glycol, Polysorbate 60, Behentrimonium Chloride, Alcohol, Glyoxyloyl Carbocysteine, Glyoxyloyl Keratin Amino Acids, Isopropyl Alcohol, Octadecyl Di-T-Butyl-4-Hydroxyhydrocinnamate, Glycerin, Potassium Stearate, Disodium EDTA, Arachidyl Alcohol, Myristyl Alcohol, Benzotriazolyl Dodecyl P-Cresol, Parfum, Lauryl Alcohol, Tocopheryl Acetate, Hydrolyzed Silk, Sodium PCA, Sodium Lactate, Arginine, Aspartic Acid, PCA, Dimethyl Palmitamine, Glycine, Alanine, Serine, Valine, Threonine, Isoleucine, Proline, Potassium Sorbate, Phenylalanine, Histidine, Tetrasodium EDTA, Sodium Benzoate.

Sulphate Free Shampoo: Aqua (Water), S-Lauryl Sulphoacetate, Cocamidopropyl Betaine, Disodium Laureth Sulfosuccinate, Decyl Glucoside, Glycerin, Polyquaternium 7, Phenoxyethanol, Peg-150 Distearate, Peg-40 Hydrogentated Castor Oil, Cocos Nucifera (Coconut) Oil, Parfum (Fragrance) Contains: Benzyl Benzoate, Coumarin.

Sulphate Free Conditioner: Aqua (Water), Cetyl Alcohol, Cetrimonium Chloride, Cocos Nucifera (Coconut) Oil, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Sodium Benzoate, Potassium Sorbate, Parfum (Fragrance), Hydrolysed Keratin, Hydrolysed Wheat Protein, Carbomer, Contains: Benzyl Benzoate, Coumarin.