Head Spa Purifying Scrub Detox
Scalp treatment
- Scalp treatment
- Sulfate-free
- Silicone-free
- Protein-free
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.
Manufacturer page: renefurtererusa.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 19 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.
Show all 19 factors we check
The rest of what your plan weighs on this product.
The consultation builds your hair profile, checks every factor in this table against it, and tells you where this product fits or what to use instead.
Start your consultation$49 once, with 60 days of follow-up questions and plan updates. Nothing renews, and you never have to buy a product.
Your avoid-list
Priced with its peers
$7.23/oz at 5.07 oz, less than 52% of the 280 scalp treatments , which mostly run $3.84–19.05/oz. The cost less.
Great for
Maybe skip if
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.
Nothing here is built to reduce combing force.
No oils or butters in the list.
Water-first and light: unlikely to flatten fine hair.
Humectants near the top: binding water is one of its main jobs.
No protein or amino acids in the list.
Nothing here needs a detergent wash to remove.
No chelating agent in the list.
Fragrance is listed; it sits below the working ingredients.
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.
| Ingredient | What it does | Why it matters | Chip |
|---|---|---|---|
| Sodium ChlorideSEA SALT (MARIS SAL) | salt | Thickens the formula | Stabilizes |
| WaterWATER (AQUA) | solvent | The base everything else is dissolved in | Neutral |
| Sodium Cocoyl Glutamate | mild anionic cleanser | — | Cleanses |
| Glycerin | humectant | Pulls water into the hair | Moisturizes |
| Aloe Barbadensis Leaf JuiceALOE BARBADENSIS LEAF JUICE POWDER | humectant | Pulls water into the hair | Moisturizes |
| Caprylyl/Capryl Glucoside | nonionic cleanser | — | Cleanses |
| Charcoal Powder | absorbent | — | Neutral |
| Citric Acid | pH adjuster | Fine-tunes the pH | pH balancer |
| Eucalyptus Globulus Leaf Oil | botanical extract | A trace plant extract | Fragrance |
| Lavandula Hybrida Oil | botanical extract | A trace plant extract | Fragrance |
| Limonene | fragrance | The scent | Fragrance |
| Linalool | fragrance | The scent | Fragrance |
Full ingredient list (20)
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
Sodium Chloride
· SEA SALT (MARIS SAL)
General function
Table salt. In shampoo it is used to thicken the liquid, not to treat the hair.
Leading ingredientPubChemListed in the first three ingredients, it is likely a structural part of this formula.
- salt
- thickener
-
2
Water
· WATER (AQUA)
General function
The base of almost every rinse-off and cream hair product. It carries everything else and is normally the first ingredient on the label.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
- solvent
-
3
Sodium Cocoyl Glutamate
General function
An amino-acid-derived cleanser, among the mildest in common use, with a low-foam, creamy feel.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
PubChemMay suitCurls or waves needing flexible holdThe 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 hairA gentler detergent leaves more of the surface oil that slows water loss from coarse or porous hair.
May suitVery dry or highly damaged hairCleanses with less sebum removal than a sulfate detergent, so hair that is short of moisture keeps more of it through the wash.
- mild anionic cleanser
- cleanser
-
4
Glycerin
General function
Glycerin, also called glycerol, attracts moisture and mixes completely with water.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
Scientific ReportsMay suitDry, coarse, or high-porosity hairHigh-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 hairBinds 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 hairWater moves both ways. Measured across concentrations, glycerin solutions give water up in some conditions and take it from the air in others. What it does for you depends on how much of it is there and on the air around it.
- humectant
-
5
Aloe Barbadensis Leaf Juice
· ALOE BARBADENSIS LEAF JUICE POWDER
General function
Aloe gel, used for light moisture and slip. High in the list it also contributes a little natural hold.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May suitCurls or waves needing flexible holdGums thicken and set soft, which gives definition that bends rather than a rigid cast.
May suitFine or easily flattened hairHydration with no oil attached, so it adds very little weight even high on a list.
May suitVery dry or highly damaged hairAloe is mostly water carrying sugars that bind more of it, which is why it turns up as the base of moisture-first formulas.
- humectant
- botanical extract
- gum
-
6
Caprylyl/Capryl Glucoside
General function
A very mild sugar-derived cleanser, often used to boost the foam of other gentle surfactants.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May suitDry, coarse, or high-porosity hairMild cleansing leaves more surface lubrication in place on hair that dries out quickly.
May suitVery dry or highly damaged hairA sugar-derived non-ionic detergent, among the gentlest in use. It cleanses with little foam of its own and little sebum removal.
May not suitBuild-up-sensitive routinesGentle cleansing leaves water-insoluble deposits largely in place; they come off with a stronger wash, not this one.
- nonionic cleanser
- cleanser
-
7
Charcoal Powder
General function
Activated charcoal, used to absorb oil and for a clarifying claim. It also tints the product black.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May suitFine or easily flattened hairA dry powder takes up oil and adds friction between strands, which is most of what root lift in fine hair actually is.
- absorbent
- powder
- ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
-
8
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 zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
International Journal of TrichologyMay suitBuild-up-sensitive routinesHolds hard-water minerals in solution so they rinse away instead of depositing on the hair.
May suitFrizz-prone, damaged, or high-friction hairThe 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 hairWhere a warm cast comes from water minerals rather than from the hair itself, holding those metals in solution is what removes it.
- pH adjuster
- hard-water chelator
- 9 CITRUS AURANTIUM DULCIS (ORANGE) PEEL OIL (CITRUS AURANTIUM DULCIS PEEL OIL)
-
10
Eucalyptus Globulus Leaf Oil
General function
The essential oil of Eucalyptus Globulus. Essential oils are aromatic — they are in the formula for scent, and they are a common source of declared fragrance allergens.
Estimated lower-concentration zoneIt 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 routinesEssential oils are fragrance. Several carry constituents on the EU list of declared fragrance allergens, so a label with no fragrance line can still be a scented product.
- botanical extract
- essential oil
- fragrance
- 11 GLYCERYL
- 12 CAPRYLATE
-
13
Lactic Acid
General function
An acid used to set pH and, in scalp products, to loosen flakes.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay suitDry, coarse, or high-porosity hairHigh-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 hairBinds 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 hairA 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.
- pH adjuster
- humectant
- exfoliant
-
14
Lavandula Hybrida Oil
General function
The essential oil of Lavandula Hybrida. Essential oils are aromatic — they are in the formula for scent, and they are a common source of declared fragrance allergens.
Estimated lower-concentration zoneIt 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 routinesEssential oils are fragrance. Several carry constituents on the EU list of declared fragrance allergens, so a label with no fragrance line can still be a scented product.
- botanical extract
- essential oil
- fragrance
-
15
Limonene
General function
A citrus-smelling fragrance component that EU rules require to be named separately because some people react to it.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
16
Linalool
General function
A floral fragrance component listed separately as a recognised contact allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
- 17 POLYGLYCRYL-6 OLEATE
-
18
Sodium Benzoate
- preservative
- 19 SODIUM SURFACTIN
-
20
Xanthan Gum
General function
A fermented sugar gum that thickens water-based formulas and adds soft, natural hold.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitCurls or waves needing flexible holdA polysaccharide film stays softer than a synthetic one as it dries, which is what leaves a curl defined but still able to move.
May suitFrizz-prone, damaged, or high-friction hairA soft film binds neighbouring strands together, which is most of what helps flyaways lie down.
May not suitMaximum-hold stylingGum films stay soft. A style that needs firm fixation usually wants a synthetic polymer doing the holding.
- gum
- thickener
- film former
What the whole list adds up to
- 4 fragrances
- 3 humectants
- 3 botanical extracts
- 2 thickeners
- 2 cleansers
- 2 gums
- 2 pH adjusters
- 2 essential oils
- 2 named fragrance allergens
- 1 salt
- 1 solvent
- 1 mild anionic cleanser
- 1 nonionic cleanser
- 1 absorbent
Ingredient list captured 2026-10-07. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 5.07 oz
Priced above the products that do the same job. Stores sell it above the $17 line; products that do this job typically go for about $19 at this size.
Show the price ladder
Where we’ve seen it4 listings · 4 stores
-
cosmetis.com
$29.365.07 oz · $5.79/ozOct 8Lowest per ozSale · was $37.20
-
Care to Beauty
$36.645.07 oz · $7.23/ozOct 8
-
Rene Furterer (brand site)
$47.005 oz · $9.40/ozOct 7
-
Rene Furterer
$47.005 oz · $9.40/ozOct 8
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
- 5.07 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.
- Commonly seen is the middle half of current prices for the 5.07 oz at recognised stores. We leave out the cheapest and most expensive quarters, so one sale or one overpriced listing can’t move it.
- Good value under $17 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $3.39/oz; at 5.07 oz that is $17. Under that line you are paying less than most of them.
- About $19 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 5.07 oz.
Formula
It costs about what other scalp treatments cost per ounce, but the formula leaves out conditioning agents up front, which most of the format carries.
How the score is counted
- 5 products we score as doing the same job cost less per ounce
- Costs less per ounce than 52% 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.
- Protein-free
- Lightweight
- Silicone-free
- Function
- Also
- Protein-free
- Lightweight
- Silicone-free
- Function
- Also
- Protein-free
- Lightweight
- Silicone-free
- Function
- Also
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
Final decision
Should you buy it?
Good for the right personHair that stiffens on protein, looking for a protein-free formula and something that will not weigh hair down
Worth skipping for anyone sensitive to fragrance, very dry or very humid climates, or people shopping on a budget
Rizos Curls Apple Cider Vinegar Scalp & Hair Rinse 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.
More from Rene Furterer
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.
- 2 sources consulted for this product (0 manufacturer or regulatory, 0 retailer, 2 editorial), last checked 2026-10-08.
- Ingredient references are linked for 6 of 12 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 2026-10-08.
