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Caffeine stimulating scalp treatment
Infographic with product use description
Caffeine stimulating scalp treatment bottle with model holding it

Caffeine stimulating scalp treatment | The INKEY List

Helps to encourage natural hair growth cycle by stimulating scalp & hair follicles

4.2
Rated 4.2 out of 5 stars
4.2 Stars (143 Reviews)
$17.00 / 150ml
An overnight hair growth serum 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.

Consistent use every night over a 3 month period produces best results.

Suitable for:

  • All Hair Types
  • Sensitive Scalps
  • Colored Hair
  • Pregnancy & Breastfeeding

Targets:

  • Thinning Hair

Proud to be:

  • Carbon Net-Zero
  • B-Corp
  • Cruelty Free
  • Recyclable
  • Vegan
  • Gluten Free
  • Fragrance Free
  • Alcohol Free
  • Silicon Free
  • Sulphate Free

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Standard tracked shipping

  • $5.95 or FREE on your first order & orders over $35
  • (2-5 business days*)

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  • $15
  • (2-3 business days*, when ordered before 3pm EST)

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4.2
Rated 4.2 out of 5 stars
Based on 143 reviews
Total 5 star reviews: 85 Total 4 star reviews: 31 Total 3 star reviews: 11 Total 2 star reviews: 3 Total 1 star reviews: 13
Reviews Summary
Customers say this scalp treatment feels refreshing and lightweight on application. Many reviews mention reduced hair shedding within the first few weeks of use. The gel-like texture absorbs well, though some note it leaves residue that requires morning washing. Reviews indicate visible results typically appear after 2-3 months of consistent use, with users reporting new growth particularly along the hairline. While most appreciate the easy-to-use applicator, some find daily washing requirements challenging for their hair care routine. The treatment works best with regular nightly application, though experiences vary with different hair types and washing schedules.
143 reviews
  • Roba M.
    Verified Buyer
    I recommend this product
    Hair Type Curly
    Hair Goals Hair Growth
    Skin Type Oily
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 days ago
    Nice

    I saw a change in empty areas in my scalp

  • B
    Verified Buyer
    I recommend this product
    Age Range 18 - 24
    Hair Type Wavy
    Hair Goals Repair Damaged Hair, Hair Growth, Flake Free Scalp, Nourish Hair, Soothe Irritated Scalp
    Rated 5 out of 5 stars
    1 week ago
    Consistency is key

    I’ve been using the Inkey List Caffeine Scalp Serum consistently, and I’m finally seeing results! I was skeptical at first, but after a few weeks of daily use, I’ve noticed baby hairs starting to grow in areas that were thinning — especially around my hairline and parting.

    My scalp feels healthier overall, and I haven’t experienced any irritation or buildup. It’s lightweight, doesn’t make my roots greasy, and sinks in quickly. I pair it with gentle scalp massages to boost circulation, and I truly believe it’s helped kickstart regrowth.

    If you’re dealing with early signs of thinning or just want to strengthen your hair at the root, I genuinely recommend giving this a try. Hair growth takes time, but this serum feels like a solid step in the right direction.

  • Rutger
    Verified Reviewer
    I recommend this product
    Age Range 35 - 44
    Hair Type Curly
    Hair Goals Hair Growth
    Skin Type Normal
    Sensitive Skin Friendly? Yes
    Rated 5 out of 5 stars
    3 weeks ago
    Result after a couple weeks

    This is my first review, as I am still in the middle of the treatment. But I wanted to share that after the first 3 weeks, I am already feeling baby hairs growing. Even verifying this with people who have seen my bald spot, they confirm there is something happening.

    I got the treatment from my mom, who used it after cancer treatment, and she has more hair then before. I am excited for the next phase.