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Act+Acre

Clarifying Hard Water Scalp + Hair Treatment

Scalp treatment

  • Scalp treatment
  • powder
  • Sulfate-free
  • Silicone-free
  • Protein-free
Size1.41 oz
Priceabout $38commonly seen · 1.41 oz
Price / oz$26.95/ozat 1.41 oz
Where to buy5 stores · $38.00–38.00

Add it to your products. We’ll tell you if it’s ever recalled.

Scent:

The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.

Strength: Strong

Manufacturer page: actandacre.com

Personal fit

Is this right for you?

Complete the consultation to see how well this product fits your hair and your goals. With 6,000+ products in our library, we can match you to the right ones.

  • About 20 minutes, and your answers save as you go.
  • Every product matched against your hair across the 20 factors we check.
  • A personalized routine built around your schedule, styling habits, and local weather.
  • Find products that do the same job at a lower cost.
  • Your goals, scalp, damage history, water, budget, and scent preferences all shape your plan.

$49 with 60 days of follow-up questions and plan updates

$99 with 12 months. Pay once; the year renews only if you choose.

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Same job for less elsewhere

$26.95/oz at 1.41 oz, more than 86% of the 280 scalp treatments , which mostly run $3.84–19.05/oz.

View alternatives

Great for

Protein-sensitive hairthat stiffens when protein is added
Fine hairthat flattens under most products
Silicone-free routinesno silicones appear in the list
Matte, textured stylesabsorbent powders do the mattifying
Very dry hairno fast-drying alcohol in the list
Short ingredient listsfifteen ingredients or fewer

Maybe skip if

this product has a strong scent
Dry or very humid airwhere heavy humectants work against you
Tight budgetsit sits in the upper price tiers
Picking it up locallywe’ve only seen it sold in one channel

Whether this much richness suits you depends on your strand thickness, porosity and how easily your hair goes flat. We work that out in the consultation.

What the formula actually does

Read from the label, not the marketing

Each row says where it comes from: F means we derived it from this product’s own ingredient list, S means it is a claim the brand makes that the formula neither confirms nor contradicts.

Slip and detangling Little

Nothing here is built to reduce combing force.

Oils and butters None

No oils or butters in the list.

Weight on the hair Light

Water-first and light: unlikely to flatten fine hair.

Water-binding (humectants) High

Humectants near the top: binding water is one of its main jobs.

Protein None

No protein or amino acids in the list.

Needs detergent to remove No

Nothing here needs a detergent wash to remove.

Hard-water defence Chelators present

Contains chelators, which bind hard-water and pool minerals.

Fragrance Prominent

Fragrance is in the first eight ingredients, so it makes up a larger share of the formula.

from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.

Ingredients that matter

The ingredients that change a decision

The workhorse ingredients, plus anything lower down that changes a decision. The chips name what an ingredient does. They are not safety scores, and no ingredient here is rated good or bad on its own.

IngredientWhat it doesWhy it mattersChip
Distarch Phosphate starch Soaks up oil and adds grip Neutral
Sodium Gluconate hard-water chelator Binds hard-water minerals Stabilizes
Ascorbic Acid antioxidant Protects the oils from going off Stabilizes
Sodium Cocoyl Glutamate mild anionic cleanser — Cleanses
Inulin humectant Pulls water into the hair Moisturizes
Rice StarchOryza Sativa Starch starch Soaks up oil and adds grip Neutral
Fructose humectant Pulls water into the hair Moisturizes
FragranceAroma fragrance The scent Fragrance
What the list leaves out, and what it carriesNo sulfates, silicones, or drying alcohols. Protein-free: this is built for moisture rather than for strengthening. Contains fragrance. Chelators for hard water.
Full ingredient list (10)

In the US, ingredients above 1% are listed from most to least. Below 1% they can appear in any order. Each note keeps three things apart: what the ingredient generally does, its role in this type of product, and what its position can tell you.

  • 1 Distarch Phosphate
    General function

    A modified starch. It soaks up oil and water and leaves a dry, slightly grippy feel, which is what puts starches in dry shampoos and texture products.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitFine or easily flattened hair

    Adds grip and body with no oil attached, which is what lifts fine hair at the root instead of weighing it down.

    DependsMaximum-hold styling

    Starch gives texture and grip rather than a set film; firm hold usually needs a polymer alongside it.

    • starch
    • absorbent
  • 2 Sodium Gluconate
    General function

    A gentle, biodegradable chelator that binds hard-water minerals in place of EDTA.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitBuild-up-sensitive routines

    Binds the calcium and magnesium in hard water, which is what stops mineral deposits accumulating on the strand wash after wash.

    May suitGray, silver, or brass-prone hair

    Copper and iron carried in tap water deposit on the strand and read as a dull, warm cast on gray or light hair. A chelator holds those metals in solution so the wash carries them off.

    PubChem
    • hard-water chelator
  • 3 Ascorbic Acid
    General function

    Vitamin C, used as an antioxidant and, in some treatments, to help remove mineral build-up.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    PubChem
    • antioxidant
    • vitamin
  • 4 Sodium Cocoyl Glutamate
    General function

    An amino-acid-derived cleanser, among the mildest in common use, with a low-foam, creamy feel.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    May suitCurls or waves needing flexible hold

    The detergent class most curl routines are built around: it lathers and cleanses without stripping the strand back to bare.

    May suitDry, coarse, or high-porosity hair

    A gentler detergent leaves more of the surface oil that slows water loss from coarse or porous hair.

    May suitVery dry or highly damaged hair

    Cleanses with less sebum removal than a sulfate detergent, so hair that is short of moisture keeps more of it through the wash.

    PubChem
    • mild anionic cleanser
    • cleanser
  • 5 Inulin
    General function

    A plant sugar used for light moisture and as a prebiotic scalp claim.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    May suitFine or easily flattened hair

    Hydration with no oil attached, so it adds very little weight even high on a list.

    May suitVery dry or highly damaged hair

    Aloe is mostly water carrying sugars that bind more of it, which is why it turns up as the base of moisture-first formulas.

    DependsClimate-sensitive or frizz-prone hair

    A humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.

    • humectant
    • botanical extract
  • 6 Rice Starch · Oryza Sativa Starch
    General function

    A fine starch that soaks up oil at the roots and adds grip.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    May suitFine or easily flattened hair

    Adds grip and body with no oil attached, which is what lifts fine hair at the root instead of weighing it down.

    DependsMaximum-hold styling

    Starch gives texture and grip rather than a set film; firm hold usually needs a polymer alongside it.

    • starch
    • powder
  • 7 Fructose
    General function

    A fruit sugar with water-binding properties, used as a humectant to help hold moisture in leave-ins, masks and scalp treatments.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    • humectant
  • ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
  • 8 Fragrance · Aroma
    General function

    An undisclosed blend of scent ingredients. Regulations let it stay unlisted, so a fragrance-free product is the only way to be certain what is not in it.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.

    • fragrance
    • declared fragrance
  • 9 Citric Acid
    General function

    Used to bring the product to a slightly acidic pH, which helps the cuticle lie flat. It is almost always near the end of the list.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitBuild-up-sensitive routines

    Holds hard-water minerals in solution so they rinse away instead of depositing on the hair.

    May suitFrizz-prone, damaged, or high-friction hair

    The acid side of pH adjustment, and the reason it matters is measured: alkaline formulas raise the fibre's surface negative charge, increase friction between strands and lift the scales, while lower-pH ones do the reverse.

    May suitGray, silver, or brass-prone hair

    Where a warm cast comes from water minerals rather than from the hair itself, holding those metals in solution is what removes it.

    International Journal of Trichology
    • pH adjuster
    • hard-water chelator
  • 10 Betaine
    General function

    A sugar-beet derived humectant that binds water. Despite the name it is not a cleanser like cocamidopropyl betaine.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitDry, coarse, or high-porosity hair

    High-porosity hair loses water fast; a humectant holds some of it in place for longer than the wash itself would.

    May suitVery dry or highly damaged hair

    Binds water into the outer layers of the strand, and water is what makes dry hair flexible again rather than brittle.

    DependsClimate-sensitive or frizz-prone hair

    A humectant moves water in whichever direction the air allows: it holds moisture in humid conditions and can pull it back out of hair in very dry ones.

    PubChem
    • humectant

What the whole list adds up to

  • 3 humectants
  • 2 starchs
  • 2 hard-water chelators
  • 1 absorbent
  • 1 antioxidant
  • 1 vitamin
  • 1 mild anionic cleanser
  • 1 cleanser
  • 1 botanical extract
  • 1 powder
  • 1 fragrance
  • 1 declared fragrance
  • 1 pH adjuster

Ingredient list captured 2026-09-16. Formulas change, so check the package in your hand when an ingredient matters to you.

Price · 1.41 oz

Commonly seen about $38 Midpoint $38 · 4 stores · checked Sep 17
Good value under $9 Under $6.25/oz it costs less than three-quarters of the 8 products we score as doing the same job

Priced above the products that do the same job. Stores sell it above the $9 line; products that do this job typically go for about $16 at this size.

Show the price ladder
Where we’ve seen it5 listings · 5 stores

Sorted by price per ounce. Dated observations from our research, not live prices. Direct store pages, no affiliate links. We don’t sell this product.

How we work this out
  1. 1.41 oz is the size stores list most often; every comparison on this page is made at it. Other sizes are shown in the Sizes row and the store list.
  2. Commonly seen is the middle half of current prices for the 1.41 oz at recognised stores. We leave out the cheapest and most expensive quarters, so one sale or one overpriced listing can’t move it.
  3. Good value under $9 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $6.25/oz; at 1.41 oz that is $9. Under that line you are paying less than most of them.
  4. About $16 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 1.41 oz.

Formula

Formula score
2 of 10

It costs more per ounce than 86% of the 280 scalp treatments we’ve priced, the formula leaves out conditioning agents up front, and 5 close matches sell for at least a quarter less per ounce.

How the score is counted
  • 5 products we score as doing the same job cost less per ounce
  • Costs more per ounce than 86% of the 280 scalp treatments we’ve priced
  • No conditioning agents up front in the formula
  • No oils or butters in the working zone either
  • Conditioning agents up frontWhat makes wet hair comb through.3 pts
  • Oils or butters in the working zoneSoftens the strand rather than just coating it.2 pts
  • Slip for detanglingReduces the force it takes to comb wet hair.2 pts
  • A humectantBinds water into the hair.1 pt
  • A pH adjusterBrings the formula to the acidic pH hair prefers.1 pt
  • Fragrance kept out of the top eightScent as a finishing touch, not a major share.1 pt

The formula score measures completeness for the job: a weighted share of the systems this product type is usually built around that we find in this list. It does not rate how well the product works or its quality, and it never compares across product types.

Does the same job, for less

Formulas that do the same things (cleanse, condition, coat or hold) for less per ounce. Scent, texture and where you buy them can still differ.

BriogeoLowest cost per oz Scalp Revival Charcoal + Tea Tree Buildup Detox Spray $6.50/oz $20.45/oz less
  • Fragrance-free
  • Protein-free
  • Lightweight
· Same function
Differs
  • Mint scent
  • 4 oz bottle
  • Sold at specialty beauty counters
Compare
JupiterFragrance-free Daily Hydration Renewing Scalp Moisturizer $10.71/oz $16.24/oz less
  • Fragrance-free
  • Unscented
  • Protein-free
· Close function
Function
  • Film formers
Also
  • Unscented
  • Cruelty-free
  • Vegan
Compare
Living ProofClose function Scalp Care Exfoliator $12.35/oz $14.60/oz less
  • Protein-free
  • Lightweight
  • Silicone-free
Function
  • Film formers
Also
  • Cruelty-free
  • 3.4 oz bottle
Compare

See more alternatives in the product library

These products do a similar job. We haven’t matched them to you. Find the one that fits your hair, routine and budget

Suits every hair pattern

Final decision

Should you buy it?

Good for the right person, not the lowest cost
Best user

Hair that stiffens on protein who want a protein-free formula and something that will not weigh hair down

Biggest tradeoff

Not ideal for anyone sensitive to fragrance, very dry or very humid climates, or people shopping on a budget

Best alternative if not

Briogeo Scalp Revival Charcoal + Tea Tree Buildup Detox Spray for similar results at a lower price

We do not sell products or take placement fees. This page states what the formula and the prices show; the consultation is what matches it to a person.

Claims check

What the brand says, and what the formula shows

Claims are quoted from the brand. We mark a claim supported, partly supported or conflicting only when the ingredient list speaks to it. Everything else stays "stated by the brand". That isn’t a criticism: most claims can’t be checked from a label.

1
SupportedBacked by ingredients
0
Partly supportedSome supporting logic
1
Stated by brandNo clear evidence
1
Potential conflictFormula works against claim
Removes build-up to restore shine

The detergent system is gentle; it is unlikely to clear heavy build-up on its own.

  • Sodium Gluconate
  • Sodium Cocoyl Glutamate
  • Citric Acid
Potential conflict

Too gentle for real build-up.

Hydrates scalp to improve elasticity + prevent breakage

Humectants or rich emollients sit in the first eight ingredients.

  • Inulin
  • Fructose
  • Betaine
Supported

Helps hair feel hydrated.

Balances microbiome to reduce irritation

This is a marketing claim; an ingredient list cannot speak to it.

—

Stated by brand

Can’t be confirmed from label.

How to read this

We look at the first 10–15 ingredients and what they do in a formula, not at the marketing. If the list doesn't speak to a claim, we don't assume.

Reviewers

What people report

Themes that come up again and again in sourced reviews, written by our researchers in their own words. We don’t store or scrape star ratings.

reviewers with locs or textured hair report finally clearing years of hard-water buildup that other clarifying methods could not remove

loc and curly/coily hair wearers

customers in hard-water regions describe a dramatic reduction in buildup, dullness and brassiness after regular weekly use

hard-water and well-water users across several regions

several reviewers say the treatment leaves hair noticeably softer, shinier and with more volume without over-drying it

reviewers with fine and thick hair types

a recurring complaint is a strong, sometimes metallic or sulfurous smell that lingers on the hair for a day or more after rinsing

reviewers who otherwise liked the results

More from Act+Acre

How this page was made

  • Everything above comes from our researched product record: identity, the ingredient list as printed, the brand's own claims, dated prices and review themes our researchers wrote in their own words. No part of this page is written by hand for one product.
  • The value band is a fixed label over two stored numbers: this product’s cost per ounce as a percentile of every product of this type we have priced, each at the size it is most often sold in, and how many products we score as doing the same job cost at least a quarter less per ounce.
  • Both scores out of ten are defined on this page. The formula score is completeness for the job, computed from a fixed per-format checklist shown beneath the gauge; the price score is cost per ounce against every product of this type we have priced.
  • The "Is this right for you?" panel reads only your own consultation answers, and it applies exactly the filters our recommendation engine applies. It is computed when you load the page and is never stored on it.
  • 4 sources consulted for this product (2 manufacturer or regulatory, 0 retailer, 2 editorial), last checked 2026-09-17.
  • Ingredient references are linked for 4 of 8 product-aware annotations on this page. Fit notes are general formulation guidance. They aren’t a verdict on the finished product or on you.
  • We haven’t tested this product in a lab, and we don’t physically test your hair. Formula readings come from the ingredient list. Claims about how it behaves are labelled as the brand's.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are what we saw on the dates shown and can change.
  • Ingredient names link to our ingredient library, where each entry shows what it does, which product types use it, and where it usually sits on a label across everything we have researched.
  • This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
  • Formula readings: derivation v23. Record last updated 2026-09-17.

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