IGK Hair Density Scalp Treatment — 2.1 oz container

IGK

Hair Density Scalp Treatment

Scalp treatment

Scalp treatment
Sulfate-free
Silicone-free
Moisture-rich

Size2.1 fl oz

Priceabout $45commonly seen · 2.1 oz

Price / oz$21.43/ozat 2.1 oz

Where to buy4 stores · $45.00–45.00

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.

Manufacturer page: igkhair.com

Personal fit

Is this right for you?

Factor Your profile Fit

Best for hair types All types Not in your profile

Moisture level High Not in your profile

Slip / detangling Little Not in your profile

Weight on hair Light Not in your profile

Fragrance Present Not in your profile

Protein Prominent Not in your profile

Silicone / wax buildup None Not in your profile

Clarifying wash needed Moderate Not in your profile

Parabens / preservatives None of these listed Not in your profile

Essential oils Present Not in your profile

Show all 19 factors we check

The rest of what your plan weighs on this product.

Fast-drying alcohol High Not in your profile

Vegan / cruelty-free Not yet verified Not in your profile

Animal-derived ingredients Not yet verified Not in your profile

Heavy humectants Heavy Not in your profile

Hard-water defence None Not in your profile

UV filter None listed Not in your profile

Ingredient list 30 ingredientsAbout average Not in your profile

Price tier Salon Not in your profile

Where to buy it Brand websiteOne channel Not in your profile

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.

Same job for less elsewhere

$21.43/oz at 2.1 oz, more than 80% of the 280 scalp treatments , which mostly run $3.84–19.05/oz.

View alternatives

Great for

Protein-hungry hairthat stretches and stays stretched when wet

Dry, thirsty hairhumectants and emollients both sit up front

Fine hairthat flattens under most products

Silicone-free routinesno silicones appear in the list

Maybe skip if

this product has a scent

Protein-sensitive hairthat goes stiff or straw-like on protein

Very dry or damaged hairit contains fast-drying alcohol

Dry or very humid airwhere heavy humectants work against you

Aerosol avoidancethis is a pressurised can

Tight budgetsit sits in the upper price tiers

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, high in the list

Oils sit high in the list: a softening, coating formula.

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 Prominent

Protein high in the list: a strengthening formula, not a moisture one.

Needs detergent to remove No

Nothing here needs a detergent wash to remove.

Hard-water defence None

No chelating agent in the list.

Fragrance Present

Fragrance is listed; it sits below the working ingredients.

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.

Ingredient	What it does	Why it matters	Chip
WaterWater (Aqua/Eau)	solvent	The base everything else is dissolved in	Neutral
Alcohol Denat.	drying alcohol	Speeds drying but can leave hair feeling dry	Drying
Butylene Glycol	humectant	Pulls water into the hair	Moisturizes
Biotin	vitamin	A marketed vitamin addition	Neutral
Acetyl Tetrapeptide-3	active	The over-the-counter active	Active
Trifolium Pratense (Clover) Flower Extract	botanical extract	A plant extract, there as much for marketing as for function	Neutral
Cucurbita Pepo (Pumpkin) Seed Oil	oil	Coats and softens the strand	Softens
Polyglutamic Acid	humectant	Pulls water into the hair	Moisturizes
Mentha Piperita (Peppermint) Oil	botanical extract	A trace plant extract	Fragrance
Menthol	fragrance	The scent	Fragrance
FragranceFragrance (Parfum)	fragrance	The scent	Fragrance
Limonene	fragrance	The scent	Fragrance

What the list leaves out, and what it carriesNo sulfates or silicones. Protein-forward: a strengthening formula, not a moisture one. Contains fragrance. Pressurised aerosol.

Full ingredient list (30)

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 Water · Water (Aqua/Eau)

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 ingredient
Listed in the first three ingredients, it is likely a structural part of this formula.
- solvent
2 Alcohol Denat.

General function
Fast-drying alcohol used to make sprays set quickly. In leave-on products it can leave hair feeling dry, especially in high position on the list.

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

May suitFine or easily flattened hair
Evaporates on contact, which is how a spray sets almost instantly and leaves no weight behind it.

May not suitDry, coarse, or high-porosity hair
Porous hair gives water up easily as it is; a fast-evaporating solvent high on the list accelerates that.

May not suitVery dry or highly damaged hair
It evaporates quickly and takes some water with it. On hair already short of moisture, a formula built on a lot of it can finish drier than it started.

PubChem
- drying alcohol
- solvent
3 Butylene Glycol

General function
A light humectant and carrier that helps extracts dissolve.

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

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
4 Biotin

General function
Vitamin B7, included for label appeal in thickening and growth-positioned products. Applied to hair it does not reach the follicle.

Supporting ingredient
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChem
- vitamin
5 Acetyl Tetrapeptide-3

General function
A small synthetic peptide included in scalp serums and scalp treatments marketed for fuller-looking hair, often as part of a branded complex alongside red clover extract. It is a formulated active rather than a cleansing or conditioning agent.

Supporting ingredient
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- active
- protein
6 Trifolium Pratense (Clover) Flower Extract

General function
An extract from the flower of Clover (Trifolium Pratense). 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
7 Cucurbita Pepo (Pumpkin) Seed Oil

General function
The oil pressed from Pumpkin (Cucurbita Pepo). How much weight a plant oil leaves depends on the hair it lands on; coarse hair tends to take more of it than fine hair.

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

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.

May not suitFine or easily flattened hair
Near the top of a list an oil is weight before it is anything else, and fine hair shows that first at the roots.
- oil
- emollient
8 Polyglutamic Acid

General function
A fermented amino-acid polymer that holds several times its weight in water and leaves a light film.

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

May suitMaximum-hold styling
Film formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.

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.
- humectant
- film former
9 Nephelium Lappaceum Seed Extract
- botanical extract
10 Phyllanthus Emblica Fruit Extract
- botanical extract
▾Below about here, the order stops meaning much. These are usually used at 1% or less.
11 Mentha Piperita (Peppermint) Oil

General function
Peppermint essential oil, used for scent and the cooling feeling on the scalp.

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
Essential 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
12 Glycerin

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

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
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
13 Polysorbate 20
- solubilizer
- emulsifier
14 Phenoxyethanol
- preservative
15 Bisabolol

General function
A chamomile-derived ingredient used for a soothing claim on the scalp.

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
Deposits a lubricating layer that makes combing easier, which is most of what stops mechanical damage adding to frizz.

PubChem
- conditioning agent
- botanical extract
16 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
17 Tocopheryl Acetate
- antioxidant
- vitamin
18 Maltodextrin

General function
A starch fragment that soaks up oil and water, which is what puts it in dry shampoos. It also carries spray-dried plant extracts and leaves a light film.

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
Takes up oil at the root, which is where fine hair goes flat first.

May suitMaximum-hold styling
Film formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.

DependsCurls or waves needing flexible hold
How rigid the finish is depends on which polymer it is and what the formula pairs with it, not on there being one.
- absorbent
- film former
- binder
19 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
20 Panthenol

General function
Provitamin B5. It draws in water and penetrates the strand a little, which is why it is the standard ingredient for softness and shine 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
It hydrates without adding oil or a film, which is the combination fine hair usually needs.

May suitFrizz-prone, damaged, or high-friction hair
Deposits a lubricating layer that makes combing easier, which is most of what stops mechanical damage adding to frizz.

May suitVery dry or highly damaged hair
A humectant that also penetrates the cuticle, so it holds water inside the strand rather than only on the surface.

PubChem
- humectant
- conditioning agent
- vitamin
21 Nitrogen
- propellant
22 Propylene Glycol

General function
A small humectant and solvent that keeps formulas stable and helps active ingredients spread.

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
23 Dextran
- polymer
- thickener
- binder
24 Menthol

General function
Produces the cooling, tingling feeling on the scalp. The sensation is real; it is not evidence that anything else is happening.

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.

PubChem
- fragrance
- active
25 Fragrance · Fragrance (Parfum)

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
26 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 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
One 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.

PubChem
- fragrance
- named fragrance allergen
27 Hydroxycitronellal

General function
A soft floral fragrance component named separately as a recognised allergen.

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
One 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.

PubChem
- fragrance
- named fragrance allergen
28 Benzyl Salicylate

General function
A soft floral fragrance component listed separately as a recognised allergen.

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
One 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.

PubChem
- fragrance
- named fragrance allergen
29 Citral

General function
A lemon-scented fragrance component listed separately as a recognised allergen.

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
One 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.

PubChem
- fragrance
- named fragrance allergen
30 Citronellol

General function
A rose-like fragrance component named separately as a recognised allergen.

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
One 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.

PubChem
- fragrance
- named fragrance allergen

What the whole list adds up to

8 fragrances
6 humectants
5 solvents
5 botanical extracts
5 named fragrance allergens
3 vitamins
2 actives
2 emollients
2 film formers
2 preservatives
2 conditioning agents
2 binders
1 drying alcohol
1 protein

Ingredient list captured 2026-09-13. Formulas change, so check the package in your hand when an ingredient matters to you.

Price · 2.1 oz

Commonly seen about $45 Midpoint $45 · 3 stores · checked Sep 14

Good value under $10 Under $4.60/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 $10 line; products that do this job typically go for about $13 at this size.

Show the price ladder

Price for 2.1 ozlower is better

Where we’ve seen it3 listings · 3 stores

Ulta Beauty
$45.00

2.1 oz · $21.43/oz

Sep 14Lowest per oz
Sephora
$45.00

2.1 oz · $21.43/oz

Sep 14
IGK Hair
$45.00

2.1 oz · $21.43/oz

Sep 14

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

2.1 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 2.1 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 $10 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $4.60/oz; at 2.1 oz that is $10. Under that line you are paying less than most of them.
About $13 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 2.1 oz.

Formula

Formula score

4 of 10

It costs more per ounce than 80% of the 280 scalp treatments we’ve priced, the formula leaves out conditioning agents up front, and 6 close matches sell for at least a quarter less per ounce.

How the score is counted

6 products we score as doing the same job cost less per ounce
Costs more per ounce than 80% of the 280 scalp treatments we’ve priced
No conditioning agents up front in the formula
No slip for detangling 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.

CeremoniaLowest cost per oz Papaya Scalp Scrub $4.13/oz $17.30/oz less

Vegan & CF

· Close function

Function: Film formers
Also: Cruelty-free
Vegan
8 oz bottle

Compare

MoroccanoilClose function Revitalizing Scalp Tonic $12.35/oz $9.08/oz less

Protein-free
Lightweight
Silicone-free

Function: Protein
Also: Cruelty-free
3.4 oz bottle

Compare

Pattern BeautyClose function Scalp Serum $7.25/oz $14.18/oz less

Protein-free
Lightweight
Silicone-free

Function: Protein
Film formers
Also: Mint scent
Cruelty-free
Vegan

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

Final decision

Should you buy it?

Hard to justify at this price

Best user

Soft, over-stretchy hair, looking for protein high in the formula and moisture that stays in

Biggest tradeoff

Worth skipping for anyone sensitive to fragrance, hair that stiffens on protein, or very dry or high-damage hair

Best alternative if not

Consider Ceremonia Papaya Scalp Scrub, 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.

SupportedBacked by ingredients

Partly supportedSome supporting logic

Stated by brandNo clear evidence

Potential conflictFormula works against claim

Visibly improves hair thickness, fullness and density in 4 weeks (clinically proven)

A brand-run study. We report it as stated and do not repeat the number as fact.

—

Stated by brand

Only the brand’s testing shows this.

Non-greasy, weightless finish that won't disrupt styling

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

Water
Alcohol Denat.
Butylene Glycol

Supported

Less likely to weigh hair down.

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.

Multiple reviewers find the mist applicator hard to aim accurately at an 8-10 inch distance and end up spraying it into their hands first to apply it more precisely.

Several reviewers used it specifically to address postpartum shedding, thyroid-related hair loss, or high-stress thinning, and describe renewed growth along the hairline.

A notable minority experience scalp itching, burning, redness, or a rash where the spray lands, with one reviewer describing a recurring allergic reaction.

Many reviewers report visibly thicker, fuller hair and new baby-hair growth along the hairline after consistent use over one to several months.

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.
5 sources consulted for this product (1 manufacturer or regulatory, 0 retailer, 4 editorial), last checked 2026-09-14.
Ingredient references are linked for 14 of 19 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 2026-09-14.

Hair Density Scalp Treatment

Is this right for you?

Read from the label, not the marketing

The ingredients that change a decision

What the whole list adds up to

Should you buy it?

What the brand says, and what the formula shows

What people report

More from IGK

How this page was made

Hair Care Consultation