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Subscribe & Save 18% + Free gift worth £134

Bestseller

Collagen Complex Hair Thickening Shampoo

From £18.00 £15.00

Thicken & strengthen fine, thinning hair

Introducing the UK’s first ever unique collagen complex formula shampoo, expertly formulated to tackle fine, thin hair right from the root.

Boosts volume and thickness from within
Deeply but gently cleanses the hair
Contains wheat protein to support with strengthening the hair

FREE Next Working Day Delivery. Order Before 4pm (UK Only)

About Absolute Collagen’s Thickening Shampoo

Our Absoluters shared their hair concerns - thin, fine hair that’s often weighed down by existing thickening products - and we created our collagen complex formula shampoo to tackle these hair issues. Our shampoo is 97% natural, paraben free and not tested on animals, and has been expertly formulated specifically to boost hair thickness and volume without weighing your hair down or clogging the hair with built-up, weighty product.

Absolute Collagen’s thickening shampoo was created in partnership with leading UK hair experts and scientists, including Eva Proudman MIT IAT, the Chairman of the Institute of Trichologists. Eva also carried out the clinical trials that prove that everyday use of our thickening shampoo can boost hair thickness by up to 20% in just 8 weeks when used alongside our thickening conditioner.

The Science

Our powerhouse thickening shampoo uses a market-leading collagen complex formula to tackle thin, flat hair while deeply and gently cleansing.

Soluble collagen wraps the hair cuticle, gently and powerfully cleansing the hair to leave it feeling fresh, clean, and cared for. Alongside this, collagen amino acids work their way deep into the cortex of the hair, where they boost volume and thickness from within.

Our powerhouse shampoo formula also includes wheat protein - which helps to increase hair’s body and volume, and plant protein to support with strengthening the hair, working alongside our groundbreaking collagen technology.

For best results, follow with Absolute Collagen thickening conditioner, try them together and use alongside our award-winning daily liquid collagen supplement.

Ingredients

Aqua (Water), TEA-Lauryl Sulfate, Myristamide DIPA, Glycerin, Disodium Laureth Sulfosuccinate, Lauryl Betaine, Glycol Distearate, Parfum (Fragrance), Laureth-4, Sodium Chloride, Pentylene Glycol, Cocamidopropyl Betaine, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Polyquaternium-7, Collagen Amino Acids, Phenoxyethanol, Dehydroacetic Acid, Citric Acid, Triticum Vulgare (Wheat) Bran Extract, Potassium Sorbate, Soluble Collagen, Leuconostoc/Radish Root Ferment Filtrate, Formic Acid, 1,2-Hexanediol, Caprylyl Glycol, Methylisothiazolinone, Benzyl Alcohol, Hexyl Cinnamal, Limonene, Linalool, Geraniol.

Updating My Order: At Absolute Collagen, we make it easy for you to amend your order, whether you want to take a break from AC or bring forward your order. For further information regarding our cancellation policy.

Results that speak for themselves​​​​‌‍​‍​‍‌‍‌​‍‌‍‍‌‌‍‌‌‍‍‌‌‍‍​‍​‍​‍‍​‍​‍‌​‌‍​‌‌‍‍‌‍‍‌‌‌​‌‍‌​‍‍‌‍‍‌‌‍​‍​‍​‍​​‍​‍‌‍‍​‌​‍‌‍‌‌‌‍‌‍​‍​‍​‍‍​‍​‍‌‍‍​‌‌​‌‌​‌​​‌​​‍‍​‍​‍‌‍​‌‌‍​​‍‌‌​‌‍​‌‌‍‍‌‍‍‌‌‌​‌‍‌​‍‌‌‍​‌‍‌‌​​‍‍‌‍‍‌‍‌‌‌‌​‌‍​‌‍‍‌‌‍‌‍‌‍‌​‍‍‌‍​‌‌​​‌​​​‍‌‍‍‌‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‌‍‌‌‌‍‌​‌‍‍‌‌‌​​‍‌‍‌‌‍‌‍‌​‌‍‌‌​‌‌​​‌​‍‌‍‌‌‌​‌‍‌‌‌‍‍‌‌​‌‍​‌‌‌​‌‍‍‌‌‍‌‍‍​‍‌‍‍‌‌‍‌​​‌​‌‍​‌‍​​​​​‌‌‍​‌‍​‍​‍​​​‌​‍‌​‍​‌‍​​‌‍​‌​​‍‌​‌​‌‍‌‍‌‍​‍​‌‍​‍‌​‍‌​‌‌‌‍‌​​‍‌​‍‌​‌​​‌​​‍‌‍​‍‌‍​​​​‌‍‌‍‌‌​​‌‍‌‍​​‌​​​​‍‌‌​‌‍‌‌​​‌‍‌‌​‌‌‍​‌‍‌‍​‌‍​‌‌‍​‌‍‍‌‌​‌‍‌‌‌‍‌​‌‌​​‌​‍‌‍‌‍‌​‌‌‌‌‍​‌‌​‌‌​​‌‍​‌‌‍‌‌‍‌‌‌​‌​‌‍‌‍​‌‌‌‌‍‌‌‍‌‌‌‍‍‌‌​​‍‌​​‌‍​‌‌‌​‌‍‍​​‌‌‍​‌‍‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‍‌‍​‌‍‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‌‌​‌‌‌​​‍‌‌‌‍‍‌‍‌‌‌‍‌​‍‌‌​​‌​‌​​‍‌‌​​‌​‌​​‍‌‌​​‍​​‍​​​​‍‌‌‍​​‌​​​​​​‍​​‌​​​​‍​‌‌‌‍​‌​‌​​‍‌‌​​‍​​‍​‍‌‌​‌‌‌​‌​​‍‍‌‍‍​‌‍‌‌‌‍​‌‌‍‌​‌‍‍‌‌‍‍‌‍‌​‌‍​‍‌‍​‌‌​‌‍‌‌‌‌‌‌‌​‍‌‍​​‌‌‍‍​‌‌​‌‌​‌​​‌​​‍‌‌​​‌​​‌​‍‌‌​​‍‌​‌‍​‍‌‌​​‍‌​‌‍‌‍​‌‌‍​​‍‌‌​‌‍​‌‌‍‍‌‍‍‌‌‌​‌‍‌​‍‌‌‍​‌‍‌‌​​‍‍‌‍‍‌‍‌‌‌‌​‌‍​‌‍‍‌‌‍‌‍‌‍‌​‍‍‌‍​‌‌​​‌​​​‍‌‍‌‍‍‌‌‍‌​​‌​‌‍​‌‍​​​​​‌‌‍​‌‍​‍​‍​​​‌​‍‌​‍​‌‍​​‌‍​‌​​‍‌​‌​‌‍‌‍‌‍​‍​‌‍​‍‌​‍‌​‌‌‌‍‌​​‍‌​‍‌​‌​​‌​​‍‌‍​‍‌‍​​​​‌‍‌‍‌‌​​‌‍‌‍​​‌​​​​‍‌‍‌‌​‌‍‌‌​​‌‍‌‌​‌‌‍​‌‍‌‍​‌‍​‌‌‍​‌‍‍‌‌​‌‍‌‌‌‍‌​‌‌​​‌​‍‌‍‌‍‌​‌‌‌‌‍​‌‌​‌‌​​‌‍​‌‌‍‌‌‍‌‌‌​‌​‌‍‌‍​‌‌‌‌‍‌‌‍‌‌‌‍‍‌‌​​‍‌‍‌​​‌‍​‌‌‌​‌‍‍​​‌‌‍​‌‍‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‍‌‍​‌‍‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‌‌​‌‌‌​​‍‌‌‌‍‍‌‍‌‌‌‍‌​‍‌‌​​‌​‌​​‍‌‌​​‌​‌​​‍‌‌​​‍​​‍​​​​‍‌‌‍​​‌​​​​​​‍​​‌​​​​‍​‌‌‌‍​‌​‌​​‍‌‌​​‍​​‍​‍‌‌​‌‌‌​‌​​‍‍‌‍‍​‌‍‌‌‌‍​‌‌‍‌​‌‍‍‌‌‍‍‌‍‌​‍​‍‌‌

*Independent user trial: 130 participants over 12 week​​​​‌‍​‍​‍‌‍‌​‍‌‍‍‌‌‍‌‌‍‍‌‌‍‍​‍​‍​‍‍​‍​‍‌​‌‍​‌‌‍‍‌‍‍‌‌‌​‌‍‌​‍‍‌‍‍‌‌‍​‍​‍​‍​​‍​‍‌‍‍​‌​‍‌‍‌‌‌‍‌‍​‍​‍​‍‍​‍​‍‌‍‍​‌‌​‌‌​‌​​‌​​‍‍​‍​‍‌‍​‌‌‍​​‍‌‌​‌‍​‌‌‍‍‌‍‍‌‌‌​‌‍‌​‍‌‌‍​‌‍‌‌​​‍‍‌‍‍‌‍‌‌‌‌​‌‍​‌‍‍‌‌‍‌‍‌‍‌​‍‍‌‍​‌‌​​‌​​​‍‌‍‍‌‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‌‍‌‌‌‍‌​‌‍‍‌‌‌​​‍‌‍‌‌‍‌‍‌​‌‍‌‌​‌‌​​‌​‍‌‍‌‌‌​‌‍‌‌‌‍‍‌‌​‌‍​‌‌‌​‌‍‍‌‌‍‌‍‍​‍‌‍‍‌‌‍‌​​‌​‌‍​‌‍​​​​​‌‌‍​‌‍​‍​‍​​​‌​‍‌​‍​‌‍​​‌‍​‌​​‍‌​‌​‌‍‌‍‌‍​‍​‌‍​‍‌​‍‌​‌‌‌‍‌​​‍‌​‍‌​‌​​‌​​‍‌‍​‍‌‍​​​​‌‍‌‍‌‌​​‌‍‌‍​​‌​​​​‍‌‌​‌‍‌‌​​‌‍‌‌​‌‌‍​‌‍‌‍​‌‍​‌‌‍​‌‍‍‌‌​‌‍‌‌‌‍‌​‌‌​​‌​‍‌‍‌‍‌​‌‌‌‌‍​‌‌​‌‌​​‌‍​‌‌‍‌‌‍‌‌‌​‌​‌‍‌‍​‌‌‌‌‍‌‌‍‌‌‌‍‍‌‌​​‍‌​​‌‍​‌‌‌​‌‍‍​​‌‌‍​‌‍‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‍‌‍​‌‍‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‌‌​‌‌‌​​‍‌‌‌‍‍‌‍‌‌‌‍‌​‍‌‌​​‌​‌​​‍‌‌​​‌​‌​​‍‌‌​​‍​​‍​​​​‍‌‌‍​​‌​​​​​​‍​​‌​​​​‍​‌‌‌‍​‌​‌​​‍‌‌​​‍​​‍​‍‌‌​‌‌‌​‌​​‍‍‌‍‌​‌‍‌‌‌​‌‍​‌​‍‌‍‍‌‌​​‌‌​‌‍‍‌‌‍‌‍‍​‌‍​‍‌‍​‌‌​‌‍‌‌‌‌‌‌‌​‍‌‍​​‌‌‍‍​‌‌​‌‌​‌​​‌​​‍‌‌​​‌​​‌​‍‌‌​​‍‌​‌‍​‍‌‌​​‍‌​‌‍‌‍​‌‌‍​​‍‌‌​‌‍​‌‌‍‍‌‍‍‌‌‌​‌‍‌​‍‌‌‍​‌‍‌‌​​‍‍‌‍‍‌‍‌‌‌‌​‌‍​‌‍‍‌‌‍‌‍‌‍‌​‍‍‌‍​‌‌​​‌​​​‍‌‍‌‍‍‌‌‍‌​​‌​‌‍​‌‍​​​​​‌‌‍​‌‍​‍​‍​​​‌​‍‌​‍​‌‍​​‌‍​‌​​‍‌​‌​‌‍‌‍‌‍​‍​‌‍​‍‌​‍‌​‌‌‌‍‌​​‍‌​‍‌​‌​​‌​​‍‌‍​‍‌‍​​​​‌‍‌‍‌‌​​‌‍‌‍​​‌​​​​‍‌‍‌‌​‌‍‌‌​​‌‍‌‌​‌‌‍​‌‍‌‍​‌‍​‌‌‍​‌‍‍‌‌​‌‍‌‌‌‍‌​‌‌​​‌​‍‌‍‌‍‌​‌‌‌‌‍​‌‌​‌‌​​‌‍​‌‌‍‌‌‍‌‌‌​‌​‌‍‌‍​‌‌‌‌‍‌‌‍‌‌‌‍‍‌‌​​‍‌‍‌​​‌‍​‌‌‌​‌‍‍​​‌‌‍​‌‍‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‍‌‍​‌‍‌‍‍‌‌​‌‍‌‌‌‍‍‌‌​​‍‌‌​‌‌‌​​‍‌‌‌‍‍‌‍‌‌‌‍‌​‍‌‌​​‌​‌​​‍‌‌​​‌​‌​​‍‌‌​​‍​​‍​​​​‍‌‌‍​​‌​​​​​​‍​​‌​​​​‍​‌‌‌‍​‌​‌​​‍‌‌​​‍​​‍​‍‌‌​‌‌‌​‌​​‍‍‌‍‌​‌‍‌‌‌​‌‍​‌​‍‌‍‍‌‌​​‌‌​‌‍‍‌‌‍‌‍‍​‍​‍‌‌

Backed by science, trusted by experts.

Dr Shotter Expert Headshot

Dr Sophie Shotter

Our award-winning aesthetician, skin care specialist and beauty press go to

Eva Expert Headshot

Eva Proudman

Leading UK Trichologist & hair expert, who helped us formulated our haircare range

Dr Barton Expert Headshot

Dr Barton

Women's health & menopause doctor, supporting women to navigate their changing body

Dr Dave

Dr Dave

Our resident senior scientist & clinical expert

FAQs

Why did we create the collagen shampoo & conditioner?

There are several thickening hair products out there, but they use heavy formulations that build up and weigh hair down, leaving it limp and flat. Absolute Collagen’s thickening shampoo and conditioner is the UK’s first collagen complex formulation shampoo and conditioner. It works to nourish, thicken, and volumise thinning hair, while maintaining that all-important lightness.

How does our thickening shampoo & conditioner work?

Just a small amount of shampoo and conditioner delivers powerful results. Hair is visibly thicker and more volumised.

Our groundbreaking new formula nourishes and strengthens hair inside while wrapping the hair cuticle to protect it externally, keeping it nourished and volumised.

It tackles thin, fine hair with the power of our unique collagen complex formula, increasing strength, volume, gloss and shine. It also reduces breakage and hair shedding.

Who should use the Collagen Complex Shampoo & Conditioner?

Anyone with thin, fine hair who would like to increase their hair thickness and volume. It’s suitable for all hair types and can be used on bleached and dyed hair alike. Consumer testing shows that coloured hair doesn’t fade even after 12 weeks of use, so Absoluters can be confident their colour won’t be affected by our products.

As it contains collagen, the shampoo and conditioner are not suitable for vegetarians or vegans.

How much should I use and how often should I use it?

You only need to use a small amount of the shampoo and conditioner as they are powerful and effective - we recommend using an amount that’s roughly the size of a 10p coin.

We recommend you wash your hair a minimum of 5 times a week for the optimum results, however we understand this isn’t suitable for all lifestyles. Every other day will also work well, but it may take longer to see results.

Click here to read more haircare FAQs.