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Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner

Collagen Complex Hair Thickening Conditioner


19 reviews

Introducing the UK’s first ever collagen complex formula conditioner that has been expertly formulated to tackle fine, thin hair and boost volume while keeping hair lightweight and gorgeous. Our unique collagen complex formula has been painstakingly developed by leading hair specialists to strengthen, thicken, nourish and volumise, and it’s clinically proven to boost hair thickness by up to 20% in just 8 weeks with everyday use and when used in conjunction with our thickening shampoo*.

A little goes a long way: use just a 10p coin sized amount of our thickening conditioner as part of your daily hair washing routine. Our conditioner works best when used daily with our thickening shampoo. Try them together!

*Source: Consumer testing conducted 2021

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Our groundbreaking new thickening conditioner uses a unique collagen complex formula to tackle thin, flat hair and boost thickness, strength, volume, and shine. 

The collagen complex formula includes soluble collagen that wraps the hair cuticle for shine and protection from external damage and environmental stress, leaving it glossy, shiny, frizz-free and easy to style. Internally, collagen amino acids penetrate into the hair’s cortex, volumising and thickening from within while leaving hair lightweight and gorgeous. 

Other ingredients in our powerhouse formula include wheat protein to increase the body and volume of the hair, and plant protein which strengthens the hair. For best results, use after Absolute Collagen thickening shampoo (try them together) and alongside a daily dose of our premium collagen drink.


Absolute Collagen’s thickening shampoo, thickening conditioner and daily collagen drink are the powerhouse trio your hair will love. One sachet a day of Absolute Collagen counters natural loss of of collagen that occurs as we age, providing your hair with all the essential amino acids it needs in order to thrive. 

Did you know, hair cells are the second thirstiest cell in the body, but one of the least essential? In practical terms, this means a decline of collagen and lack of protein will often affect hair first, leading to unwanted symptoms like thinning and brittleness. 

Our groundbreaking collagen complex formula provides deep nourishment to the hair’s internal cortex - for greater strength and volume - as well as smoothing and hydrating the external cuticle, for hair as full of life as you are! Enjoy stronger, thicker, more volumised hair with a lightweight flourish. 

About Absolute Collagen’s Thickening Conditioner+-

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 conditioner to tackle these hair issues. Our conditioner is 96% 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.

We’re proud to have partnered with leading UK hair experts and scientists, including Eva Proudman MIT IAT, the Chairman of the Institute of Trichologists, to develop and test Absolute Collagen’s thickening conditioner. Eva’s clinical trials show that daily use of our thickening conditioner and thickening shampoo together can boost hair thickness by up to 20% in just 8 weeks.


What is it?  

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. 

It works perfectly alongside our daily collagen supplement. The supplement supports your hair with the protein and essential amino acids it needs to grow, then the shampoo and conditioner strengthens and nourishes it inside and out. 

The conditioner is 96% natural, while the conditioner is 97% natural. Both products are paraben free, and cruelty free and have been clinically proven by the UK’s top hair experts (see ‘Science’ section above). 

Why have we created it? 

As the original collagen specialists, we know collagen depletion significantly impacts hair as we age. By the age of 50, we’ve lost around half of our natural collagen, causing dry, flat, and thin hair. 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. 

Our Absoluters asked us for a product to tackle their thin, fine hair concerns - and we’ve delivered! 

We’ve partnered with the UK’s leading hair specialists, including top trichologist Eva Proudman MIT IAT, to develop a brand new collagen haircare range that delivers powerful strength, shine and volume to ageing hair without weighing it down! It’s just the latest step in our mission to help Absoluters feel their absolute best. 

What does it do? 

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

Shoulder length hair, for example, is often around 3-4 years old, and in that time it faces a lot of everyday environmental stress. Add in the impact of heat and colour treatments and it’s no surprise your tresses may be looking - and feeling - a little worse for wear. 

Our groundbreaking new formula tackles these problems head on, nourishing and strengthening hair inside while wrapping the hair cuticle to protect it externally, keeping it nourished and volumised, whatever the world throws at it. 

Who is it for?  

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? 

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. 

What type of collagen is in these products? 

The collagen in our shampoo and conditioner is a mixture of both bovine and marine. This means the products are not suitable for vegans or vegetarians. 

Can I recycle the bottle? 

Yes, it is 100% recyclable. 

Can I use the conditioner without the shampoo? 

Yes, you can, however we recommend you use the shampoo and conditioner together as they work in conjunction with each other and have been expertly and specifically formulated to work together. 

How frequently should I wash my hair? 

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.


Aqua (Water), Cetearyl Alcohol, Glycerin, Cocos Nucifera (Coconut) Oil, Behentrimonium Chloride, Olea Europaea (Olive) Fruit Oil, Benzyl Alcohol, Cetrimonium Chloride, Parfum, Amodimethicone, Ricinus Communis Seed Oil, Ethyltrimonium Chloride Methacrylate/ Hydrolyzed Wheat Protein Copolymer, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Hydrolyzed Vegetable Protein PG-Propyl Silanetriol, Collagen Amino Acids, Hydrogenated Vegetable Oil, Dehydroacetic Acid, Trideceth-12, Phenoxyethanol, Soluble Collagen, Potassium Sorbate, Disodium EDTA, Citric Acid, Sodium Benzoate, Tocopherol, Ethylhexyglycerin, Hexyl Cinnamal, Limonene, Linalool

Allergy advice: For allergens see ingredients in bold.

Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner
Collagen Complex Hair Thickening Conditioner

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Collagen Complex Hair Thickening Conditioner

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One Time Purchase £18

Subscribe & Save DELIVERED EVERY 8 WEEKS £15

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