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Cool Girl Body Volume Trio
Cool Girl Volume Cleanse Shampoo – Full & Travel Size Duo - Hair by Sam McKnight
Cool Girl Body Plumping & Volumising Cream - Hair by Sam McKnight
Cool Girl Body Plumping & Volumising Cream - Hair by Sam McKnight
Cool Girl Body Plumping & Volumising Cream - Hair by Sam McKnight
Cool Girl Body Plumping & Volumising Cream - Hair by Sam McKnight
Cool Girl Volume Cleanse Shampoo & Nourish Conditioner - Hair by Sam McKnight
Cool Girl Body Volume Trio
Cool Girl Volume Cleanse Shampoo – Full & Travel Size Duo - Hair by Sam McKnight
Cool Girl Body Plumping & Volumising Cream - Hair by Sam McKnight
Cool Girl Body Plumping & Volumising Cream - Hair by Sam McKnight
Cool Girl Body Plumping & Volumising Cream - Hair by Sam McKnight
Cool Girl Body Plumping & Volumising Cream - Hair by Sam McKnight
Cool Girl Volume Cleanse Shampoo & Nourish Conditioner - Hair by Sam McKnight

Cool Girl Body Volume Trio

A 3-step haircare routine for lasting volume

£65.00 £87.00

SAVE £22

STRONGER HAIR • WEIGHTLESS BODY • LASTING VOLUME

Cleanse, condition and strengthen: for hair that's thicker, fuller and holds its volume for longer.

Start with Cool Girl Volume Cleanse, a lightweight, Kind to Biome® cleanser, and follow with Cool Girl Volume Nourish Conditioner to hydrate and deliver up to 30% more volume and thickness with Voluminis™ - from the very first wash.

Finish with Cool Girl Body Plumping & Volumising Cream to lock that volume in: clinically proven* to plump and fortify every strand so it holds its shape for longer, with built-in heat protection, frizz and humidity defence.

WHAT’S INSIDE
Cool Girl Volume Cleanse Shampoo
Cool Girl Volume Cleanse Shampoo

A lightweight, Kind to Biome® cleanser that boosts body without drying out or weighing hair down. Powered by Voluminis™, a dual-action volumising and thickening active that delivers up to 30% more volume in one wash for fuller, thicker hair.

Cool Girl Volume Nourish Conditioner
Cool Girl Volume Nourish Conditioner

Formulated with Voluminis™ and enriched with Fermented Rice Water, full of nourishing antioxidants, strengthening proteins and amino acids, this conditioner hydrates and strengthens without weighing hair down - leaving hair fuller, softer, smoother and more manageable.

Cool Girl Body Plumping & Volumising Cream
Cool Girl Body Plumping & Volumising Cream

A hybrid leave-in cream, clinically proven to instantly plump and fortify every strand, so hair holds its shape, volume and body for longer. Transforms weak, damaged strands, leaving hair soft, glossy, and full of movement, with heat protection to 230°C and built-in humidity and frizz defence.

*Clinically proven to thicken and fortify hair fibre.

Why You'll Love It
  • Expertly formulated for fine, thin and limp hair, and all textures in between.

  • Powered by Voluminis™ for up to 30% more volume and thickness from the first use.

  • Locks in lasting volume - even in heat and humidity - so your style doesn't fall flat.

  • Leaves hair full of body yet touchably soft and shiny, never stiff or dry.

  • Infused with Sam's signature fine fragrance of Frankincense, Juniper Wood and Water Lily, reminiscent of his garden in the rain and created in collaboration with Perfumer H.

  • Fully recyclable packaging made from at least 30% post-consumer recycled plastic.

How To Use
  1. Start by shampooing the hair with Cool Girl Volume Cleanse Shampoo, and follow with Cool Girl Volume Conditioner to hydrate and deliver up to 30% more volume and thickness with Voluminis™, from the very first wash.

  2. Next, smooth Cool Girl Body Plumping & Volumising Cream through towel-dried hair.

  3. Leave to air-dry, or blow-dry and style as usual.

Shipping & Returns

FREE UK STANDARD DELIVERY ON ALL ORDERS; ORDER BY 4PM FOR NEXT DAY DELIVERY FROM £2.50

We offer free standard delivery on all UK orders. Orders are shipped and delivered by Evri on business days Monday through Friday, excluding bank holidays and weekends. We endeavour to deliver UK orders within 3 working days.

For purchases made before 4pm, UK Next Day Delivery for the following business day is available for £2.50. Restrictions apply.*

Orders with multiple products are packaged and shipped together. If one or more of your items is only available to 'pre-order', please consider making separate purchases to receive the available products as soon as possible.

If you have any queries regarding delivery please contact Customer Services at info@sammcknight.com

Please note that Samples are not available to purchase individually.

*Some products including our aerosols may have a separate delivery fee automatically added to your order. If you think this has happened to your order, please contact our customer service at info@sammcknight.com and we will provide assistance.


INTERNATIONAL ORDERS

We deliver to: Belgium, Bulgaria, Hungary, France, Georgia, Germany, Greece, Ireland, Netherlands, Poland, Portugal, Sweden. Email info@sammcknight.com if you are in Europe and want to check if we deliver to you.

We can only deliver non-aerosol products (everything excluding Cool Girl, Lazy Girl, Modern Hairspray, Easy Up Do) to Canada. Please note the customer is responsible for duties and taxes.

Orders are shipping express UPS to Canada, and DPD to Europe. Shipping charge from £5.

RETURNS

If for any reason you're dissatisfied with your purchase, please contact info@sammcknight.com. We welcome your feedback. Unfortunately we do not accept returns unless the product is faulty. There are no exchanges on our products. Please contact us at info@sammcknight.com and we will provide instructions for making returns.

"I would highly recommend this wonder product... I’ve constantly battled with flat hair which is naturally wavy sometimes. After using this plumping product, it’s as though I’ve got my youthful hair back."

Customer Review, Anna-Maria P
Aug 12, 26

WHY WON'T MY HAIR HOLD VOLUME?

For many people, the frustration isn't just getting volume - it's keeping it. Hair that looks full when styled can fall flat within hours, losing lift and body. When your hair is fine, thinning, fragile, colour-treated or damaged, volume drops fast because the hair fibre itself lacks strength and has lost its ability to hold shape. As that happens, lift collapses. Body disappears. Hair falls flat.

Question I get asked: how do you make volume actually last?

Here’s what you need to know.

Sam x

Jul 05, 25

YOUR VOLUME QUESTIONS ANSWERED

A question I’m commonly asked, wherever I am in the world is how to get bigger, thicker, and fuller-looking hair. And whilst there isn’t a one-size-fits-all answer, because hair type, length, texture and quality are all important volumising factors – and there are lots of ways you can get your hair to new heights. It’s all about using the right products, styling techniques - and following my expert tips and tricks to hit your volume goal.

To help, I’ve created a BIG HAIR GUIDE which answers all the big-hair questions you’ve asked me. It's everything you need to know about adding volume, thickness and fullness to your hair.

Sam x
Apr 14, 25

THE SCIENCE BEHIND: VOLUMINIS™

How to add Cool Girl volume to your hair is one of the questions I get asked the most - but what many don’t know is that you can add volume at every stage of your hair routine. Carefully developing my Cool Girl Care Collection with Voluminis™, you can now create the ultimate full-bodied foundation for an iconic Cool Girl Do.

Read on to learn just exactly what Voluminis™ is, and why it is so great for that all-important va-va-volume.

Sam x

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Cool Girl Body Volume Trio

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