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Restore Scalp Serum, Fragrance Free

Scalp treatment

  • Scalp treatment
  • serum
  • Sulfate-free
  • Silicone-free
  • Vegan · label states
  • Cruelty-free · label states
Size2 fl ozusual store size · 2 sizes
Price$48seen at one store · 2 oz
Price / oz$24.00/ozat 2 oz
Where to buy1 store

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: helloseen.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

$24.00/oz at 2 oz, more than 82% of the 280 scalp treatments , which mostly run $3.84–19.05/oz.

View alternatives

Great for

no fragrance (parfum) on the label
free of strong smells
Protein-sensitive hairthat stiffens when protein is added
Dry, thirsty hairhumectants and emollients both sit up front
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
Tight budgetsit sits in the upper price tiers
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 Some

Some slip, mostly from esters or silicones rather than conditioners.

Oils and butters None

No oils or butters in the list.

Weight on the hair Medium

Middle of the range: noticeable on fine hair, light on coarse 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 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
WaterWater/Aqua/Eau solvent The base everything else is dissolved in Neutral
Glycerin humectant Pulls water into the hair Moisturizes
Propanediol Caprylate light ester Light slip without much weight Softens
Sarcosine amino acid Small protein fragments that bind water Protein
C13-15 Alkane emollient Softens and smooths the strand Softens
Ethylhexyl Olivate light ester Light slip without much weight Softens
Squalane emollient Softens and smooths the strand Detangles
Arginine amino acid Small protein fragments that bind water Protein
What the list leaves out, and what it carriesThe list carries no sulfates, silicones, or drying alcohols. No protein: a moisture formula, not a repair one. Hard-water chelators are present. Vegan and cruelty-free.
Full ingredient list (14)

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 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 Propanediol Caprylate
    General function

    A fatty ester. Esters give slip and a smooth after-feel; lighter ones read dry and silky, heavier ones read rich.

    Leading ingredient

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

    PubChem
    • light ester
    • emollient
  • 4 Sarcosine
    General function

    An amino acid derivative used for moisture binding and in scalp-positioned formulas.

    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.

    • amino acid
  • 5 C13-15 Alkane
    General function

    A plant-derived light alkane used as a clean-feeling replacement for silicone or mineral oil.

    Supporting ingredient

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

    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.

    • emollient
    • solvent
  • 6 Ethylhexyl Olivate
    General function

    A light olive-derived ester used as a plant alternative to silicone slip.

    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

    A light emollient: it softens the surface with noticeably less weight than an oil or a butter.

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

    Spreads thin and lowers friction between strands without the heaviness of a fixed oil.

    • light ester
    • emollient
  • 7 Squalane
    General function

    The fully hydrogenated form of squalene, now made from olive or sugarcane rather than shark liver. Hydrogenation is what makes it so slow to oxidise; it spreads very lightly and absorbs without a greasy film.

    Supporting ingredient

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

    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
    • emollient
    • conditioning agent
  • 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.

    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.

    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
  • ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
  • 9 Tocopherol
    • antioxidant
    • vitamin
  • 10 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
  • 11 Acrylates/C10-30 Alkyl Acrylate Crosspolymer
    General function

    A gel-forming thickener that also keeps oils suspended. It contributes a little 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 suitClimate-sensitive or frizz-prone hair

    A set polymer film is a physical barrier to humidity, so a style keeps its shape longer in damp conditions.

    May suitMaximum-hold styling

    Synthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.

    DependsBuild-up-sensitive routines

    Some acrylate copolymers rinse with water and some need a detergent; the label alone does not say which one a formula used.

    • thickener
    • polymer
    • film former
  • 12 Phenoxyethanol
    • preservative
  • 13 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
  • 14 Sodium Phytate
    General function

    A rice-derived chelator that binds hard-water minerals without EDTA.

    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

    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

What the whole list adds up to

  • 5 emollients
  • 2 solvents
  • 2 humectants
  • 2 light esters
  • 2 amino acids
  • 2 conditioning agents
  • 2 preservatives
  • 1 antioxidant
  • 1 vitamin
  • 1 botanical extract
  • 1 thickener
  • 1 polymer
  • 1 film former
  • 1 hard-water chelator

Ingredient list captured 2026-09-08. Formulas change, so check the package in your hand when an ingredient matters to you.

Price · 2 oz

Seen at $48 1 store · checked Sep 8
Good value under $19 Under $9.50/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 $19 line; products that do this job typically go for about $38 at this size.

Show the price ladder
Where we’ve seen it1 listing · 1 store

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. 2 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. Seen at $48 is the price we have observed for the 2 oz. We need three stores before we call a price commonly seen.
  3. Good value under $19 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $9.50/oz; at 2 oz that is $19. Under that line you are paying less than most of them.
  4. About $38 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 2 oz.

Formula

Formula score
4 of 10

Above the range for scalp treatments per ounce for a shorter formula with no conditioning agents up front, and 4 close matches cost less.

How the score is counted
  • 4 products that do the same job cost less per ounce
  • Costs more per ounce than 82% 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.

NioxinLighter feel Pro Clinical Scalp Relief Scalp Soothing Serum $11.83/oz $12.17/oz less
  • Protein-free
  • Lightweight
  • Silicone-free
· Close function
Function
  • Weight on the hair
  • Film formers
Also
  • Salon tier
  • 3.4 oz bottle
Compare
Kristin EssLighter feel Mineral Detox Pre-Shampoo Rinse $2.50/oz $21.50/oz less
  • Protein-free
  • Lightweight
  • Silicone-free
· Close function
Function
  • Oils and butters
  • Weight on the hair
  • Film formers
Also
  • Woody scent, not unscented
  • Masstige tier
  • 6 oz bottle
Compare
Aunt Jackie'sLowest cost per oz Dry Clean! No Rinse Scalp Refresh $1.67/oz $22.33/oz less
  • Protein-free
  • Lightweight
  • Silicone-free
· Close function
Function
  • Oils and butters
  • Weight on the hair
  • Hard-water defence
Also
  • Drugstore tier
  • 6 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

People sensitive to fragrance, looking for a formula with no added fragrance and a product with no scent

Biggest tradeoff

Worth skipping for very dry or very humid climates, people shopping on a budget, or anyone who wants a product to smell of something

Best alternative if not

Nioxin Pro Clinical Scalp Relief Scalp Soothing Serum 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
3
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
Relieves dry scalp

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

—

Stated by brand

Can’t be confirmed from label.

Reduce the appearance of flakes and irritation

No over-the-counter anti-dandruff active appears in the list.

—

Stated by brand

Soothing, not an active treatment.

Non-comedogenic

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

—

Stated by brand

Can’t be confirmed from label.

Color-Safe

It avoids sulfate detergents, which are the usual cause of fast fade.

  • Tocopherol
Supported

Less fade per wash.

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.

Many reviewers with dry, itchy or irritated scalps say the serum soothes discomfort and noticeably reduces itching with regular use.

reviewers with dry/itchy/dermatitis-prone scalps

A few reviewers specifically value that it's fragrance-free, useful for sensitive scalps and for those who switched from salon brands that left their scalp irritated.

fragrance-sensitive reviewers

Several reviewers say it is lightweight, absorbs quickly, and doesn't leave hair or scalp feeling greasy or oily.

general reviewers

Some reviewers say results take a few weeks of consistent use to fully judge, rather than being immediate.

recent/new users

More from SEEN

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 (1 manufacturer or regulatory, 0 retailer, 1 editorial), last checked 2026-09-08.
  • Ingredient references are linked for 6 of 10 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 2026-10-07.

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