Hair Growth & Volume Duo products against a glossy green background
Hair Growth & Volume Duo Caffeine Scalp Treatment bottle infographic with bottle dimensions and how to use text
Hair Growth & Volume Duo Caffeine Scalp Treatment bottle infographic with bottle dimensions and how to use text
Hair Growth & Volume Duo model with Caffeine Scalp bottle
Hair Growth & Volume Duo Model with Peptide volumizing treatment bottle
Infographic with text 'helps reduce hair loss, encourages hair growth through scalp stimulation and proven to increase hair thickness and volume'

Hair Growth & Volume Duo | The INKEY List

Reduce hair loss and boost volume in 2 easy steps

4.3
Rated 4.3 out of 5 stars
4.3 Stars (31 Reviews)
£27.55 £29.00 / 2 full-size products

25% OFF 4+ products! Use code PRIME25

We lose on average 50-100 hairs from our head on a daily basis. As new hair grows through the follicle, old hair eventually falls out as part of the ‘exogen’ phase of hair growth. However, when this process is imbalanced, with less hair growing than falling out, it can make the hair feel thin, flat and lacklustre.

Each Hair Growth & Volume Duo contains a full size;

Caffeine Stimulating Scalp Treatment (150ml) : An overnight scalp treatment that uses caffeine powder and an ingredient called Redensyl™ to help reduce hair loss by stimulating the scalp and hair follicles, therefore encouraging hair growth and helping to improve hair thickness.

Peptide Volumizing Hair Treatment (100ml) : When hair sheds it can feel thin and lacklustre. Using Peptides, the chains of amino acids that support proteins naturally found in hair, our unique lightweight formula increases hair thickness and volume.

Suitable for:

  • All hair types
  • Coloured hair
  • Pregnancy & breastfeeding

Targets:

  • Thinning Hair
  • Fine, Limp or Flat-looking Hair

Delivery info

Standard tracked delivery (Evri)

  • £3.99 or FREE on your first order & orders over £30
  • (2-5 working days*) 

Express tracked delivery (Evri)

  • £5.95 or FREE on orders £50+
  • (Up to 2 working days if ordered before 8pm, excluding weekends*)

*Find out more about delivery options and delivery area restrictions here.

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4.3
Rated 4.3 out of 5 stars
Based on 31 reviews
Total 5 star reviews: 17 Total 4 star reviews: 9 Total 3 star reviews: 3 Total 2 star reviews: 2 Total 1 star reviews: 0
Reviews Summary
Customers say this hair care duo shows varying results. Many notice immediate volume improvement with the volumizing treatment, reporting bouncy, thicker-looking hair from the first use. The overnight treatment gets mixed feedback - while some experience new hair growth within weeks, others mention it can leave hair looking messy. Frequent comments address how the volumizing formula doesn't weigh hair down. Some users note the overnight treatment requires next-day washing. Reviews mention seeing baby hairs appearing, though experiences with timing of results vary considerably.
31 reviews
  • Frannie R.
    Verified Buyer
    I recommend this product
    Age Range 25 - 34
    Hair Type Straight
    Hair Goals Hair Growth
    Skin Type Dry
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    Yesterday
    Hair growth after Brain Surgery

    I needed to shave my head for brain surgery, and knew there would be eventual scars. I was excited to see the results happening over the scars and growing back hair in places that surprised even my surgeon!

  • MM
    Age Range 25 - 34
    Hair Type Curly
    Hair Goals Hair Growth
    Rated 3 out of 5 stars
    1 week ago
    Caffeine treatment works for me

    They used to sell just the caffeine treatment. I don’t care for the peptide product. Please allow customers to continue purchasing the caffeine product separately. I’ve done the full PRP treatment and used fancy scalp serums … all a waste of money. This caffeine treatment is the only product where I’ve quickly noticed hair shedding (from the root) slow down.

  • lilly m.
    Verified Buyer
    I recommend this product
    Age Range 18 - 24
    Hair Type Wavy
    Hair Goals Hydration, Repair Damaged Hair, Hair Growth, Increased Volume
    Rated 4 out of 5 stars
    3 weeks ago
    10/10

    noticed a difference within the first 2weeks, feels and looks thicker and already have hair growth of a few inches within month+ of using