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Act+Acre

Act+Acre 4% Niacinamide Oily Scalp Serum 65ml

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£64.00

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Image 1 - A woman with dark hair is shown in a side profile comparing her ear before and after wearing earrings, with Before on the left and After on the right.
Image 2 - A person holding a gray bottle of Act+Acne 4% Niacinamide Oily Scalp Serum with text on the right detailing its application and proven benefits, including stabilizes scalp to be less oily over time, extends time between washes, and prevents excess sebum production.
Image 3 - A collage of four images showing a woman with long hair on different days, labeled Day 1, Day 2, Day 3, and Day 4 in each corner respectively.
Image 4 - Three circular graphs showing statistics: 99% agree hair appears less oily, 96% agree it extends time between washes, and 98% agree scalp oil production was reduced, with the text Proven Results results from a consumer perception study with all hair and scalp types displayed below.
Image 5 - Text on a gray background listing the ingredients of Niacinamide Oily Scalp Serum, including Niacinamide (4%), Fermented Green Tea Blend (5%), and Astragalus Root Extract, along with production details like ethical labor (100%) and manufacturing method (cold processed), and packaging information indicating a glass bottle, pet plastic pipette, 85% recyclability, and certified post recycled box material.
Image 6 - A woman is shown in two side-by-side images; the left shows her with long, straight hair labeled Before, and the right shows her with long, wavy hair labeled After.
Image 7 - Image showing a dropper releasing liquid with a bar graph indicating that 97% of nutrients are retained with Cold Processed® methods and 10% with heat processing, alongside a statement about cold processing preserving active ingredients.
Image 8 - Side-by-side comparison images of a womans hairstyle showing the difference between the Before and After looks, with the text Before on the left and After on the right.

Frequently Bought Together

Act+Acre 4% Niacinamide Oily Scalp Serum 65ml

This item

Act+Acre 4% Niacinamide Oily Scalp Serum 65ml

£64.00

Total Price:

£90.00

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Customer Reviews

4.89 stars out of a maximum of 5

5 stars rating 8 reviews

4 stars rating 1 reviews

3 stars rating 0 reviews

2 stars rating 0 reviews

1 stars rating 0 reviews

Top Customer Reviews

Thanks for sharing your thoughts! Please remember that results will vary from person to person. We're proud to say that all customer reviews are independent, authentic and do not represent the views of Cult Beauty or The Hut Group.

Fabulous innovation!

5 stars out of a maximum of 5

I have the classic oily scalp and dry ends so the struggle is real to keep my hair wash and styling days down to twice a week. Make sure to read the instructions- this serum goes on just post wash which seems a bit counter-intuitive but I trust the team at A+A so did as I was instructed. I noticed immediately that my hair felt less greasy and it's extended my wash days by two days! which is a game-changer. Another win of a product from the A+A team. You can't go wrong. x

by Alicia- CB Staff

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A new staple!

5 stars out of a maximum of 5

If you find you have an oily or sensitive scalp I definitely recommend this serum. It absorbs quickly, and leaves no greasy residue. I've definitely noticed an improvement in how quickly my hair gets greasy / how long I can go between washes.

by Emily - Cult Beauty Staff

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Scalp feels soothed

5 stars out of a maximum of 5

I am a heavy daily product user, once a week hair washer, a gym goer, and a head sweater finally on top of all of that I occasionally get dry scalp and psoriasis on the lower back half of my scalp. This feels really lovely on the scalp and does not leave a greasy feeling on your roots whatsoever. I am really enjoying using this as I simply added this to my morning hair routine with no fuss. Would recommend it if you have an irritated scalp.

by Kimberley - Cult Beauty Staff

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Loving this serum!

5 stars out of a maximum of 5

I’ve been using this serum for a while, and it keeps my scalp feeling fresh. It’s lightweight, absorbs quickly, and leaves no greasy residue.

by Amaal - cult beauty staff

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Cult Fav

5 stars out of a maximum of 5

Has to be one of the best Scalp Serums on the market! SMELLS INCREDIBLE and leave my hair at its best!

by Isaan

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Ultimate Scalp TLC

5 stars out of a maximum of 5

I don't usually have an oily scalp, but lately I think post Christmas with the excessive sweets etc my scalp has become a little more oily than usual. This has been such a game changer for me, the serum absorbs fast into the scalp so leaves no residue or build up to the hair strands. I find it really helps keep your scalp feeling fresh and stops any irritation. I've been using for a few weeks and can really see a reduction in oil.

by Sophia (Cult Beauty Staff)

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Love this serum!

4 stars out of a maximum of 5

I have an oily scalp, and this serum is a game-changer! The serum absorbs fast, and keeps my scalp feeling fresh without any greasiness. I could already see results after one use plus my hair stays cleaner for longer.

by Olivia - Cult Beauty Staff

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Game Changer

5 stars out of a maximum of 5

I’ve never seen a product like this before! It’s the perfect balancing treatment for anyone with an oily scalp but dry (probably bleached) ends. It’s helped me cut down from three wash days a week to just two—no dry shampoo needed. My scalp feels amazing—I can’t even describe the feeling!

by Ellie - Cult Beauty Staff

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So moisturising!

5 stars out of a maximum of 5

I absolutely love this product! My scalp feels super moisturised after just one use, it also feels like it acts as a dry shampoo so I can extend the time between washes. My hair feels much healthier for using this, definitely a staple to my haircare routine!

by Kirsty - Cult Beauty Staff

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