Are The Cosmetologists an official authorised UK stockist?

Yes. The Cosmetologists are official authorised UK stockists of ghd, Kérastase, Olaplex, Color WOW, Moroccanoil, milk_shake, K18 Biomimetic Hairscience, REF Stockholm and Echo Hair Extensions. Every product we sell is 100% genuine, sourced directly from official brand distributors. All ghd products include full UK manufacturer warranty.

Do you offer free UK delivery?

Yes. We offer free fast UK delivery on all orders over £50. Orders are dispatched promptly from our Hull salon at 499 Anlaby Road, Kingston upon Hull, HU3 6DT. Standard delivery is available on all orders under £50.

What types of hair extensions do you sell?

We sell a full range of 100% human hair extensions from Echo, including Russian Remy weft, Virgin Remy, Pure Brazilian, European weft, nano tip, tape in and clip in hair extensions. All are available in a wide range of shades from 12 to 26 inches. Use our free Hair Extension Match Finder to find your perfect match.

What is the difference between nano tip and tape in hair extensions?

Nano tip extensions use tiny keratin bonds attached strand by strand, making them virtually invisible and ideal for fine hair. They typically last 3 to 5 months. Tape in extensions use adhesive wefts that sandwich sections of natural hair for a flatter, faster application and need repositioning every 6 to 8 weeks. Both methods use 100% real human hair and can be curled, straightened and washed like natural hair.

How do I know which Olaplex products I need?

The best starting point for most people is Olaplex No.3 Hair Perfector used weekly as a pre-shampoo treatment, with No.4 shampoo and No.5 conditioner for every wash. If your hair is severely bleached or damaged, add No.0 before your No.3 treatment. For styling, No.6 Bond Smoother controls frizz and No.7 Bonding Oil adds shine and heat protection.

Are your ghd products genuine and covered by warranty?

Yes. As official authorised ghd stockists, every ghd tool we sell is 100% genuine and comes with the full UK manufacturer warranty. Buying ghd from unauthorised sellers risks receiving a counterfeit product that will not deliver results and will not be covered by warranty.

Where is The Cosmetologists salon located?

Our salon and retail store is located at 499 Anlaby Road, Kingston upon Hull, HU3 6DT. You can visit us in store, call us on 01482 692703 or email info@thecosmetologists.co.uk. We also offer Click and Collect for online orders.

Can I use Olaplex, K18 and Kérastase together?

Yes. Many of our customers combine all three brands as part of their routine. A popular professional combination is using the K18 Molecular Repair Mask for rapid structural repair, maintaining with Olaplex No.4 and No.5 every wash, and using a Kérastase treatment mask weekly for nourishment and shine. There are no ingredient conflicts between the three brands.

REF Leave-In Serum 125ml | The Cosmetologists

REF Leave-In Serum 125ml vegan heat protection styling serum

Description

Description

REF Leave-In Serum 125ml is an intensely hydrating heat-protectant styling serum designed to smooth, repair and nourish the hair while protecting against heat damage. Infused with strengthening proteins and botanical extracts, this professional leave in serum leaves hair silky soft, healthy-looking and easier to manage.

The lightweight formula delivers long-lasting hydration while helping detangle the hair and reduce frizz without weighing it down. Enriched with Organic Coconut Oil, Jojoba Oil and Castor Oil, the serum deeply nourishes dry and damaged hair while improving shine, smoothness and overall manageability.

Strengthening Quinoa Protein helps reinforce the hair fibre and support healthier-looking hair, while REF’s Color Preserve System helps protect colour-treated hair and maintain vibrancy. Ideal for everyday styling, blow-drying and heat styling routines.

Key Ingredients:

Organic Coconut Oil — helps deeply nourish and hydrate the hair
Jojoba Oil — helps smooth and soften dry hair
Castor Oil — helps improve shine and condition
Quinoa Protein — helps strengthen and protect the hair fibre
Color Preserve System — helps maintain colour vibrancy

Key Benefits:

Provides heat protection during styling
Deeply hydrates and smooths the hair
Helps detangle and reduce frizz
Improves softness and shine
Strengthens dry and damaged hair
Protects colour-treated hair
Lightweight non-greasy serum formula
100% vegan professional haircare

Perfect For:

All hair types
Dry and damaged hair
Colour-treated hair
Frizzy or tangled hair
Blow-drying and heat styling routines
Vegan and clean beauty lovers

How To Use:

Apply evenly to towel-dried hair through the mid-lengths and ends. Proceed with styling and blow-drying as desired.

Why REF Stockholm?

REF is a professional Swedish haircare brand built on three core values — performance, sustainability and style. Every REF product is 100% vegan, cruelty-free and climate compensated, without ever compromising on professional-grade results. Made with love in Stockholm, REF represents the very best of Scandinavian clean beauty excellence.

Why Buy From The Cosmetologists?

We are authorised UK stockists of REF Stockholm professional haircare. Every product we sell is 100% authentic, fast dispatched from our Hull warehouse with free UK delivery available. Shop luxury professional haircare with complete confidence.