Don't forget - you can checkout with Clearpay to pay in installments

EXCLUSIVE SETS

30% off
New
BIG Curl Jelly Kit
(0)
BIG Curl Jelly Kit
$51.64 $73.77
30% off
New
Natural Waves Wash & Style Routine
(0)
Natural Waves Wash & Style Routine
$48.97 $69.95
Hair quiz
(5)

Grow Serum

$13.99

For all hair types. No frizz longer hair serum with vegetable protein, vitamin B5 and organic pea sprouts

Who it's for

Perfect for helping with hair loss or shedding

Still unsure? Take our hair quiz.

Why you'll love it

Anti-frizz serum with vegetable protein, pro-vitamin B5 and organic pea sprouts to stimulate the scalp. Prevents breakage and seals split ends for healthier and fuller looking hair. Instantly adds shine and smoothness. Safe for colour, chemically treated, relaxed hair and hair extensions

How to Use It

Smooth 4-8 pumps evenly through damp hair. Style as usual.

Ingredients

Aqua (Water), Glycerin, PEG-40, Hydrogenated Castor Oil, Xanthan Gum, Panthenol, Parfum (Fragrance), Hydrolyzed, Vegetable Protein PG-Propyl Silanetriol, Pentylene Glycol, Caffeine, Maris Sal (Sea Salt), Laminaria Digitata Extract , Triticum Vulgare (Wheat) Bran Extract , Citric Acid, Coffea Arabica (Coffee) Seed Extract, Chondrus Crispus (Carrageen) Extract, Fucus Vesiculosus (Bladderwrack) Extract, Laminaria Japonica (Kelp) Extract, Sargassum Pallidum (Seaweed) Extract, 1,2-Hexanediol, Caprylyl Glycol , Pisum Sativum (Pea) Sprout Extract, Disodium EDTA, Phenoxyethanol, Sodium Benzoate, Potassium Sorbate

  • Free shipping

    On all orders over £25

  • 100% Vegan

    (Before it was trendy)

  • For all Curl Types

    No one gets it like we do.

  • B-CORP

    100% vegan, 100% cruelty free, 100% of the time

Part of the Fuller, Longer, Thicker range

Frequently Asked Questions

What countries do you ship to?

You can shop UG online in the UK and US. Looking for us elsewhere? Our Stockists page has all the details on where to buy UG around the world. 

How long will it take to receive my order?

Standard shipping normally takes 3-5 days. Next day shipping is available on all domestic orders (for an additional charge). International shipping times depend on the products and destination (estimated at checkout).

How do I return a product?

Not quite right? Return within 30 days of delivery. Items must be unused, in original condition and packaging. Include your order number for a speedy refund.

How long will it take to receive my refund?

Refunds are processed within 7 days from when we receive the item(s).

Overall rating: 4.787879 / 5 from 66 reviews.

AI Generated Review Summary

Grow Long Serum effectively tames wild hair, banishes frizz, and adds shine. It strengthens hair, protects against breakage, and accelerates hair growth with its unique caffeine and marine nutrient complex.

Summary topics

  • Hair Taming: 36%
  • Fragrance: 15%
  • Hair Appearance: 11%

Review topics: [looks, hair, feeling, smells, amount, texture, difference, serum, shine, buy, curls, finish, treatment, grow, range, hold, conditioner, shampoo, pump].

Review highlights

  • "The smell is about amazing, adds good shine, I will definitely buy products from this range again" — Amy C.
  • "absolutely love this serum, hair is looking so much better." — Anna R.
  • "My hair definitely feels softer and looks smoother after using this alongside the other products." — Becky H.

Reviews

best scent

"this line has the best scent of anything and it helps tame frizz and add shine. i'm a fan."

— Diane M. (5/5)

I don’t know how I

"I don’t know how I feel about this yet"

— GIANNA P. (5/5)

Grow long serum

"Just great smell defined curls and the finish was no frizz"

— Aliza M. (5/5)

amazing

"been using for 2 months and hair growth has already increased loads, love the smell of coffee 😋"

— abi (5/5)

So far so good!

"I’ve only been using the Grow Long & Smooth Wonder Blow Dry Spray and the Hair Growth Shampoo, Conditioner, and Tonic for just under two weeks — and I swear it already feels like my hair has grown! It’s softer, smoother, and looks healthier after every wash. So far, I’m absolutely loving these products!"

— jenifer G. (5/5)

Confidence boost

"Having gone from brunette to blonde my hair has seriously suffered. I’ve only used this product for a few weeks so I’m not stating miracles have happened however I do feel my hair feels softer and possibly thicker since using this. I have a long way to go to get my hair back to what it once was but considering the short time I’ve used this it has given me a small boost in confidence. Many things online are very expensive so this seems great value for money. I’d happily buy this again"

— Lisa (4/5)

Great helper!

"Gorgeous treatment. It gives my hair a beautiful shine, and does seem to provide more help to my curls. I’m currently recovering from some hair loss so I do have the ‘fuzz halo’ and I’m hoping this is helping. I’ve only been using it for 3 weeks so I’m not seeing any huge changes yet, but it has helped with the visible condition of my regrowth so hopefully it’s doing more behind the scenes, will repurchase. And the smell is to die for"

— Chloe H. (5/5)

Gorgeous

"I love this product it's like liquid gold."

— Nic W. (5/5)

Amazing Product!

"Amazing product - my hair length and overall thickness has improved dramatically since introducing the grow serum into my hair routine! The condition of my hair is the best it has ever been!"

— Amy W. (5/5)

Love this

"I absolutely love this and it's really worked for my hair. The smell is about amazing, adds good shine, I will definitely buy products from this range again"

— Amy C. (5/5)

Q&A

should this be used before or after heat protectant?
Hello Zahra Many thanks for your query. We recommend that you smooth through the serum before you layer with any other styling products/ heat protectants. Love UG x
Is the serum supposed to go on the scalp? Ot just mids to ends?
Hi Julie Smooth 4-8 pumps through the lengths of the hair. UG x