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Pura d'or

Hair Thinning Therapy Energizing Scalp Serum

Scalp treatment

  • Scalp treatment
  • serum
  • Sulfate-free
  • Silicone-free
  • Cruelty-free · PETA-listed
Size4 oz
Price$20–25commonly seen · 4 oz
Price / oz$5.00/ozat 4 oz

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

Scent:

No added fragrance, no scenting essential oils, and no declared fragrance allergens on the list.

Manufacturer page: purador.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.

Start your consultation

Priced with its peers

$5.00/oz at 4 oz, less than 67% of the 280 scalp treatments , which mostly run $3.84–19.05/oz.

Price and stores

Great for

Flaking scalpsit has an over-the-counter active
no fragrance (parfum) on the label
free of strong smells
Fine hairthat flattens under most products
Silicone-free routinesno silicones appear in the list
Very dry hairno fast-drying alcohol in the list

Maybe skip if

Dry or very humid airwhere heavy humectants work against you
Non-medicated routinesthis is an over-the-counter drug as well as a cosmetic
If scent matters to younothing is added here
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 Present, lower down

Oils are present, but low enough to be a finishing touch.

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 Minor

Protein appears, low enough to be a supporting ingredient.

Needs detergent to remove No

Nothing here needs a detergent wash to remove.

Hard-water defence None

No chelating agent in the list.

Fragrance None listed

No fragrance is listed.

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
Decolorized Aloe Barbadensis (Aloe Vera) Leaf JuiceDecolorized Aloe Vera (Aloe Barbadensis) (Leaf) Juice botanical extract A plant extract, there as much for marketing as for function Moisturizes
Glycerin humectant Pulls water into the hair Moisturizes
Sodium Metabisulfite antioxidant Protects the oils from going off Stabilizes
Larix Europaea Wood Extract botanical extract A plant extract, there as much for marketing as for function Neutral
Glycine amino acid Small protein fragments that bind water Protein
Zinc Chloride preservative Keeps the product from spoiling Stabilizes
Propanediol humectant Adds a little water-binding Moisturizes
Arginine amino acid A trace of amino acids Protein
Copper Tripeptide-1 protein A small amount of protein Protein
Caffeine active A secondary active Active
Ketoconazole active A secondary active Active
What the list leaves out, and what it carriesNo sulfates, silicones, or drying alcohols. An over-the-counter scalp active is listed (ketoconazole).
Full ingredient list (65)

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 Decolorized Aloe Barbadensis (Aloe Vera) Leaf Juice · Decolorized Aloe Vera (Aloe Barbadensis) (Leaf) Juice
    General function

    Aloe leaf juice filtered to remove its yellow latex fraction. Used for light moisture and slip, often in place of some of the water.

    Leading ingredient

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

    • botanical extract
    • humectant
  • 2 Glycerin
    General function

    Glycerin, also called glycerol, attracts moisture and mixes completely with water.

    Leading ingredient

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

    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

    Water 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.

    Scientific Reports
    • humectant
  • 3 Sodium Metabisulfite
    General function

    A reducing agent that keeps a formula from discolouring.

    Leading ingredient

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

    • antioxidant
    • preservative
  • 4 Larix Europaea Wood Extract
    General function

    An extract from the wood of Larix Europaea. Plant extracts are used across a wide range of levels, and label order is the best guide to how much is here.

    Supporting ingredient

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

    • botanical extract
  • 5 Glycine
    General function

    The smallest amino acid in hair protein, added for moisture binding.

    Supporting ingredient

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

    May suitVery dry or highly damaged hair

    Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.

    DependsProtein-sensitive hair

    The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.

    PubChem
    • amino acid
  • ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
  • 6 Zinc Chloride
    • preservative
    • salt
  • 7 Propanediol
    General function

    A corn-derived humectant and solvent, often chosen as a lighter-feeling alternative to propylene glycol.

    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 suitFine or easily flattened hair

    Light and water-binding rather than oily, so it adds less weight than oils or butters do.

    May suitVery dry or highly damaged hair

    A small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.

    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.

    PubChem
    • humectant
    • solvent
  • 8 Arginine
    General function

    An amino acid that holds water and carries a positive charge, so it is drawn to damaged spots on the strand.

    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 suitVery dry or highly damaged hair

    Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.

    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.

    DependsProtein-sensitive hair

    The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.

    PubChem
    • amino acid
    • humectant
  • 9 Lactic Acid
    General function

    An acid used to set pH and, in scalp products, to loosen flakes.

    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
    • pH adjuster
    • humectant
    • exfoliant
  • 10 Soybean (Glycine Soja) (Seed) Extract
  • 11 Palm (Elaeis Guineensis) (Fruit) Extract
  • 12 Rice (Oryza Sativa) Extract
  • 13 Selaginella Lepidophylla Extract
    General function

    Resurrection plant extract, used for moisture-retention claims.

    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 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.

    • botanical extract
    • humectant
  • 14 Lactobacillus Ferment
    • preservative
    • botanical extract
  • 15 Coconut (Cocos Nucifera) (Fruit) Extract
  • 16 Leuconostoc/Radish Root Ferment Filtrate
    • preservative
  • 17 Pea (Pisum Sativum) Extract
  • 18 Resurrection (Selaginella Lepidophylla) Extract
  • 19 Amla (Emblica Officinalis) (Seed) Oil
  • 20 Black Cumin (Nigella Sativa) (Seed) Oil
  • 21 Cedarwood (Cedrus Atlantica) (Bark) Oil
  • 22 Hibiscus (Hibiscus Sabdariffa) Extract
  • 23 Camellia Sinensis (Green Tea) Leaf Extract · Green Tea (Camellia Sinensis) (Leaf) Extract
    • botanical extract
    • antioxidant
  • 24 Nettle (Urtica Dioica) (Leaf) Extract
  • 25 Pygeum (Prunus Africana) (Bark) Extract
  • 26 Argania Spinosa Kernel Oil · Argan (Argania Spinosa) (Kernel) Oil
    General function

    Argan oil. A medium-weight oil used for shine and softness on the outside of the strand.

    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

    Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

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

    A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.

    • oil
    • emollient
  • 27 Sesame (Sesamum Indicum) (Seed) Oil
  • 28 Beta-Sitosterol
  • 29 Rosemary (Rosmarinus Officinalis) (Leaf) Oil
  • 30 Peppermint (Mentha Piperita) Oil
  • 31 Fo-Ti (Polygonum Multiflorum) (Root) Extract
  • 32 Saw Palmetto (Serenoa Serrulata) (Fruit) Extract
  • 33 Scutellaria Baicalensis Root Extract
    • botanical extract
  • 34 Centella Asiatica Extract
    • botanical extract
  • 35 Soy Isoflavone
  • 36 Pumpkin (Cucurbita Pepo) (Seed) Oil
  • 37 Niacin (Vitamin B3)
  • 38 Biotin · Biotin (Vitamin H)
    • vitamin
  • 39 Cayenne (Capsicum Frutescens) (Fruit) Extract
  • 40 Copper Tripeptide-1
    General function

    A copper-bound peptide used in thinning-positioned products. Evidence in hair is limited and mostly from skin research.

    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.

    DependsVery dry or highly damaged hair

    Unhydrolysed protein is too large to enter the strand. It sits on the surface, which is a coating effect rather than internal reinforcement.

    • protein
  • 41 Catalase Enzyme
  • 42 Caffeine
    • active
  • 43 Apple (Malus Domestica) (Fruit) Cell Culture Extract
  • 44 Xanthan Gum
    General function

    A fermented sugar gum that thickens water-based formulas and adds soft, natural hold.

    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 suitCurls or waves needing flexible hold

    A 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 hair

    A soft film binds neighbouring strands together, which is most of what helps flyaways lie down.

    May not suitMaximum-hold styling

    Gum films stay soft. A style that needs firm fixation usually wants a synthetic polymer doing the holding.

    • gum
    • thickener
    • film former
  • 45 Dipotassium Glycyrrhizinate
  • 46 Kahai (Caryodendron Orinocense) (Seed) Oil
  • 47 Bilberry (Vaccinium Myrtillus) (Seed) Oil
  • 48 Sacha Inchi (Plukenetia Volubilis) (Seed) Oil
  • 49 Lemongrass (Cymbopogon Flexuosus) Oil
  • 50 Sodium Hyaluronate
    General function

    A large water-binding molecule that sits on the surface holding moisture.

    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.

    • humectant
  • 51 Sorbitan Oleate Decylglucoside Crosspolymer
    • emulsifier
  • 52 Methylglucoside Phosphate
  • 53 Copper Lysinate/Prolinate
  • 54 Ketoconazole
    • active
  • 55 Polysorbate 20
    • solubilizer
    • emulsifier
  • 56 Apple Cider Vinegar
    General function

    Dilute acetic acid from fermented apples, used to bring a rinse to an acidic pH so the cuticle lies flatter. The effect comes from the acid, not from the apples.

    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.

    DependsFrizz-prone, damaged, or high-friction hair

    pH adjusters are how a formula is brought to a chosen acidity, and an acidic formula keeps the cuticle lying flatter than an alkaline one. Which way this one moves the pH depends on the formula, and the finished pH is not on the label.

    • pH adjuster
  • 57 Horsetail (Equisetum Arvense) Extract
  • 58 Plankton Extract
  • 59 Lecithin
    General function

    A soy- or sunflower-derived lipid that helps conditioning ingredients spread evenly on the strand.

    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 suitFrizz-prone, damaged, or high-friction hair

    Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.

    PubChem
    • emulsifier
    • emollient
  • 60 Sodium Ascorbate (Vitamin C)
  • 61 Tocopherol · Tocopherol (Vitamin E)
    • antioxidant
    • vitamin
  • 62 Phenoxyethanol
    • preservative
  • 63 Caprylyl Glycol
    General function

    A gentle preservative helper that also holds a little moisture.

    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 suitVery dry or highly damaged hair

    Humectants bind water into the strand, and water — not oil — is what makes dry hair flexible instead of brittle.

    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.

    PubChem
    • preservative
    • humectant
  • 64 Ethylhexylglycerin
    General function

    A preservative booster that also adds a little softness. Almost always paired with phenoxyethanol.

    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 suitFrizz-prone, damaged, or high-friction hair

    Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.

    PubChem
    • preservative
    • emollient
  • 65 Hexylene Glycol
    General function

    A solvent that keeps other ingredients dissolved and helps preservatives work.

    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 suitFine or easily flattened hair

    Light and water-binding rather than oily, so it adds less weight than oils or butters do.

    May suitVery dry or highly damaged hair

    A small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.

    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.

    PubChem
    • solvent
    • humectant

What the whole list adds up to

  • 9 humectants
  • 7 botanical extracts
  • 7 preservatives
  • 3 antioxidants
  • 3 emollients
  • 3 emulsifiers
  • 2 amino acids
  • 2 solvents
  • 2 pH adjusters
  • 2 vitamins
  • 2 actives
  • 1 salt
  • 1 exfoliant
  • 1 oil

Ingredient list captured 2026-10-17. Formulas change, so check the package in your hand when an ingredient matters to you.

Price · 4 oz

Commonly seen $20–25 Midpoint $19.99 · 5 stores · checked Oct 17
Good value under $23 Under $5.71/oz it costs less than three-quarters of the 8 products we score as doing the same job

Good value on sale. Some stores sell it under the $23 line; products that do this job typically go for about $49 at this size.

Show the price ladder
Where we’ve seen it7 listings · 7 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. 4 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 4 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 $23 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $5.71/oz; at 4 oz that is $23. Under that line you are paying less than most of them.
  4. About $49 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 4 oz.

Formula

Formula score
3 of 10

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
  • Costs less per ounce than 67% 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
  • Masstige tier, sold at Brand website
  • 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

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.

Andalou NaturalsLowest cost per oz Argan Stem Cell Age Defying Scalp Intensive $7.14/oz $2.14/oz more
  • Lightweight
  • Silicone-free
  • Alcohol-free
· Close function
Function
  • Film formers
Also
  • Vegan
  • 2.1 oz bottle
  • Sold in drugstores and mass retail
Compare
Coco & EveClose function Tripeptide Hair Density Serum $17.24/oz $12.24/oz more
  • Fragrance-free
  • Unscented
  • Lightweight
Function
  • Hard-water defence
Also
  • Vegan
  • Salon tier
  • 2 oz bottle
Compare
K18Close function FutureIQ Biomimetic Hair Longevity Serum $40.00/oz $35.00/oz more
  • Fragrance-free
  • Unscented
  • Lightweight
Function
  • Oils and butters
Also
  • Prestige tier
  • 3 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?

A solid pick for the hair it suits
Best user

Flaking scalps, for an over-the-counter scalp active and a formula with no added fragrance

Biggest tradeoff

Worth skipping for very dry or very humid climates, anyone who does not want a medicated product, or anyone who wants a product to smell of something

Best alternative if not

Nothing in our library matches it closely 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
2
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
Advanced 2-in-1 scalp treatment serum with 16 active ingredients that alleviates irritation, revitalizes hair appearance, and increases elasticity

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

—

Stated by brand

Can’t be confirmed from label.

Lightweight serum that alleviates scalp irritation immediately upon application

Light silicones and low wax content help it avoid visible residue.

  • Propanediol
Supported

Less likely to weigh hair down.

Visible hair improvements after 8-12 weeks of consistent use

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.

More from Pura d'or

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 (1 manufacturer or regulatory, 0 retailer, 3 editorial), last checked 2026-10-17.
  • Ingredient references are linked for 9 of 15 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 2026-10-17.

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