Clarifying Hard Water Scalp + Hair Treatment
3-minute powder treatment that clears hard water buildup + product residue, while boosting volume, shine, and hydration. Prevent breakage + reset your hair without ever stripping it.
+ Removes build-up to restore shine
+ Hydrates scalp to improve elasticity + prevent breakage
+ Balances microbiome to reduce irritation
4 x 10g sachets (1 month supply)
30 Days Risk-Free. Modify or cancel your order anytime.
Why You Need This



Real User Results



Consumer Testing
Scalp Science
Our Clarifying Hard Water Scalp Treatment is a weekly solution designed to detoxify and restore balance to the scalp. Formulated with 15% Vitamin C, it effectively removes contaminants that lead to build-up and brassiness. Betaine (1%) helps restore essential moisture to the scalp and hair, while 7% Inulin, a prebiotic, supports the scalp's microbiome to prevent irritation, leaving your scalp and hair refreshed and nourished.
Best For
Scalp Type
Hair Texture
Concerns
Ingredients

Vitamin C (15%)

Betaine (1%)
Inulin (7%)
Clarifying Hard Water Scalp + Hair Treatment Full Ingredients
FAQ
How often should I use the Hard Water Treatment?
We recommend using the treatment once a week to effectively remove mineral buildup and keep your scalp balanced.
Is the Hard Water Treatment color safe?
The Hard Water Treatment is safe for most color-treated hair. However, if you have red or vibrant shades like blue or green, we recommend a patch test first, as these tones can be more prone to fading.
Should I apply the Hard Water Treatment to wet or dry hair?
Apply the Hard Water Treatment to wet hair, working it from the scalp through to the ends to ensure even coverage and effective buildup removal.
Why does the treatment have a metallic scent?
The treatment is formulated with active ingredients that with minerals and heavy metals present on the scalp + hair. During this process, the ingredients break down and remove these impurities, which can sometimes release a temporary metallic odor. This is a completely normal reaction and the smell should fade once the treatment is rinsed out.
How To
How to Use Act+Acre Clarifying Hard Water Scalp Treatment:
Wet scalp and hair thoroughly. Mix powder with water to create a spreadable paste + massage into wet scalp and hair. Leave on for 3 minutes. Rinse + follow with a double cleanse.





How to Use Act+Acre Clarifying Hard Water Scalp Treatment:
Wet scalp and hair thoroughly. Mix powder with water to create a spreadable paste + massage into wet scalp and hair. Leave on for 3 minutes. Rinse + follow with a double cleanse.


- AAmandaKI recommend this productRated 5 out of 5 stars1 month agoFantastic results.
Wasn’t sure what to expect but the results are amazing. My hair feels youthful. Fabulous product.
Was this helpful? - SSarahI recommend this productRated 4 out of 5 stars1 month agoSo fresh and so clean clean
As someone who suffers from an extremely dry scalp, I have to say this product is amazing! The first time I used it it stung my scalp so bad - but again I have an extremely dry scalp. I’ve been using it once a week and have noticed such a dramatic difference! My hair is super super shiny, soft and build up stays away for at least 3-4 days which for me is huge. 4 days later I realized I hadn’t had the urge to scratch my scalp. I gave 4 stars because the smell is not pleasant but don’t let that stop you!
Was this helpful? - SSarahI recommend this productRated 4 out of 5 stars1 month agoGreat deep cleanse
Really love how this deep cleans my scalp, it makes my hair look really great and extends my wash days every time. Easy to use, great results! Only downside for me is the smell is quite strong and seems to stick around until my next wash
Was this helpful? - EEllenI recommend this productRated 5 out of 5 stars1 month agoIts Amazing - I've Never Used Anything Like This
I've never used anything like this. You can actaully smell the heavy metals coming out of your hair - yet still so luxe with the amazing effervescent experience. I live in a hard water area and after using once my hair is the softest it's ever been.
Was this helpful? - ZzoeI recommend this productRated 5 out of 5 stars1 month agoObsessed!!
Sooo good!! I've only used this a few times and it has worked so well. I have tried a few treatments in the past that I didnt feel were worth it but loving this so far and can feel the difference.
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