Maximum-strength anti-dandruff shampoo with 1% selenium sulfide
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.
Selsun Blue
Moisturizing Anti-Dandruff Shampoo
Shampoo / Clarifying, deep-cleaning
- Shampoo
- Protein-free
Size11 fl oz
Price$23.24seen at one store · 11 oz
Price / oz$2.11/ozat 11 oz
Where to buy2 stores · $7.99–23.24
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Listing used for research: target.com
Personal fit
Is this right for you?
Complete the consultation to see exactly how well this product fits your hair and your goals. With 2,400+ products in our library we can match exactly the right products to you.
- In 10 minutes we can identify your exact hair condition and traits.
- Every product matched against your hair across the 22 factors we check.
- A personalized routine for your daily life — 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.
$49.00 one-time consultation, no subscription
Add the optional $49/year membership for unlimited adjustments for changes in weather and lifestyle.
Factor
Your profile
Fit
Best for hair types
All types
Not in your profile
Moisture level
Low
Not in your profile
Cleansing strength
Strong
Not in your profile
Slip / detangling
Some
Not in your profile
Weight on hair
Medium
Not in your profile
Fragrance
Present
Not in your profile
Protein
None
Not in your profile
Silicone / wax buildup
High
Not in your profile
Clarifying wash needed
Moderate
Not in your profile
Sulfates
Sulfate detergent
Not in your profile
Show all 22 factors we check
The rest of what your plan weighs on this product.
Parabens / preservatives
None of these listed
Not in your profile
Essential oils
None listed
Not in your profile
Fast-drying alcohol
None
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
Not heavy
Not in your profile
Hard-water defence
None
Not in your profile
UV filter
None listed
Not in your profile
pH adjusted
Adjusted
Not in your profile
Ingredient list
16 ingredientsAbout average
Not in your profile
Price tier
Value
Not in your profile
Where to buy it
Grocery / massOne channel
Not in your profile
The consultation builds your hair profile, then reads every factor in this table against it — and tells you where this product fits, or what to use instead.
Start your consultation$49.00 once, for your consultation and hair profile. No subscription, no required purchases.
Your avoid-list
Upper-mid price for a shampoo
$2.11/oz at 11 oz — more than 64% of the 805 shampoos , which mostly run $0.81–3.01/oz. The cost less.
Great for
Flaking scalpsthis carries an over-the-counter active
Protein-sensitive hairthat stiffens when protein is added
Fast-oiling scalpsthat need a real reset wash
Very dry hairno fast-drying alcohol in the list
Cuticle-smoothing pHa pH adjuster brings it to the acidic range hair prefers
A wide range of haira middle-of-the-range weight
Maybe skip if
this product carries a scent
Sulfate-free routinesit uses a sulfate detergent
Curly-method routinesthese silicones need a detergent to remove
Dry or damaged haira strong detergent system strips as it cleans
Hair that needs proteinthere is none in this list
Hard waterno chelator here to bind the minerals
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.
Cleansing strength
Strong
Removes oil, buildup, and most residue — a reset wash.
Expected lather
High
Thick foam that spreads quickly through the hair.
Slip and detangling
Some
Some slip, mostly from esters or silicones rather than conditioners.
Water-binding (humectants)
Low
Humectants appear, but low enough to be a minor part.
Scalp active
selenium sulfide, 1%
Carries an over-the-counter scalp active, listed under Drug Facts.
Hard-water defence
None
No chelating agent in the list.
Needs detergent to remove
Yes
Water-insoluble silicones or waxes: a detergent wash is what removes them.
Protein
None
No protein or amino acids 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. These 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 |
|---|---|---|---|
| Water | solvent | The base everything else is dissolved in | Neutral |
| Ammonium Lauryl Sulfate | sulfate cleanser | — | Cleanses |
| Glycol Distearate | opacifier | Makes the product look creamy | Softens |
| Cocamidopropyl Betaine | amphoteric cleanser | — | Cleanses |
| Sodium Methyl Cocoyl Taurate | mild anionic cleanser | — | Cleanses |
| Sodium Chloride | salt | Thickens the formula | Stabilizes |
| Glyceryl Caprylate/Caprate | light ester | Light slip without much weight | Softens |
| Citric Acid | pH adjuster | Fine-tunes the pH | pH balancer |
| Fragrance | fragrance | The scent | Fragrance |
| Dimethicone | silicone | A little smoothing and shine | Buildup |
What the list leaves out, and what it carriesNo drying alcohols. Protein-free: this is built for moisture rather than for strengthening. Contains fragrance. The silicones here need a detergent wash to come off.
Full ingredient list (16)
US labelling rules put ingredients above 1% in descending order of amount; below 1% they may be listed in any order. Annotations keep three readings separate: the ingredient's general function, its role in this product type, and what its position can support.
-
1
Water
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
-
2
Ammonium Lauryl Sulfate
General function
A sulfate detergent similar in strength to sodium lauryl sulfate, used for fast, high foam.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
PubChemMay suitBuild-up-sensitive routinesA sulfate detergent removes deposited silicone, wax and styling films in one wash, which is what resets a routine before build-up is visible.
May suitFine or easily flattened hairFine hair that goes limp under conditioning films usually reads a full detergent wash as volume returning.
May not suitDry, coarse, or high-porosity hairCoarse and high-porosity hair loses water quickly on its own; an efficient detergent removes the surface oils that were slowing that down.
- sulfate cleanser
- cleanser
-
3
Glycol Distearate
General function
A wax that gives shampoo its pearly look and a slightly richer feel.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
PubChemMay suitFrizz-prone, damaged, or high-friction hairEmollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
- opacifier
- emollient
-
4
Cocamidopropyl Betaine
General function
A mild coconut-derived co-cleanser that boosts foam and softens the effect of stronger detergents. It appears in most shampoos, gentle or not.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
Indian Journal of DermatologyMay suitDry, coarse, or high-porosity hairMild cleansing leaves more surface lubrication in place on hair that dries out quickly.
May not suitBuild-up-sensitive routinesThe mildest detergents are also the least complete: a routine that deposits films needs something stronger periodically.
DependsVery dry or highly damaged hairAmong the mildest detergents in use — it is what baby shampoos are built on — but it is almost always the second detergent in a formula. How much a wash strips is still decided by the primary detergent listed above it.
- amphoteric cleanser
- secondary cleanser
- cleanser
-
5
Sodium Methyl Cocoyl Taurate
General function
A mild cleanser that keeps foaming in hard water and rinses cleanly.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May 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
-
6
Sodium Chloride
General function
Table salt. In shampoo it is used to thicken the liquid, not to treat the hair.
Supporting ingredientPubChemListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- salt
- thickener
-
7
Glyceryl Caprylate/Caprate
General function
A fatty ester. Esters give slip and a smooth after-feel; lighter ones read dry and silky, heavier ones read rich.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May suitFine or easily flattened hairA light emollient: it softens the surface with noticeably less weight than an oil or a butter.
May suitFrizz-prone, damaged, or high-friction hairSpreads thin and lowers friction between strands without the heaviness of a fixed oil.
- light ester
- emollient
- ▾Below about this point, order stops being meaningful — these are typically 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
Titanium Dioxide
General function
A white mineral pigment that makes a product opaque or pearly.
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 suitGray, silver, or brass-prone hairA violet or blue colorant sits opposite yellow on the colour wheel, so a trace of it deposited on the surface makes a warm cast read cooler. It washes out over the following few washes.
- colourant
- opacifier
- mineral
-
10
Fragrance
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 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 routinesDeclared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
- fragrance
- declared fragrance
-
11
Dimethicone
General function
The most common conditioning silicone. It coats the strand for shine, slip, and frizz control, and needs a detergent (not just water) to wash out.
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 suitClimate-sensitive or frizz-prone hairA surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.
May suitFrizz-prone, damaged, or high-friction hairLays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.
- silicone
- emollient
- conditioning agent
-
12
Polyacrylate Crosspolymer-6
General function
A cross-linked thickener that gives gels a smooth, bouncy texture and light 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 suitClimate-sensitive or frizz-prone hairA set polymer film is a physical barrier to humidity, so a style keeps its shape longer in damp conditions.
May suitMaximum-hold stylingSynthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.
DependsBuild-up-sensitive routinesSome 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
-
13
Hydroxyacetophenone
- preservative
- antioxidant
-
14
Sodium Citrate
General function
Used with citric acid to hold the formula at a steady, slightly acidic pH. It also binds a little hard-water mineral.
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 suitBuild-up-sensitive routinesBinds 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 hairCopper 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.
DependsFrizz-prone, damaged, or high-friction hairpH 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
- hard-water chelator
-
15
Aloe Barbadensis Leaf Juice
General function
Aloe gel, used for light moisture and slip. High in the list it also contributes a little 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 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
-
16
Blue 1 (CI 42090)
· Blue 1
General function
A certified colour used to tint the product itself, not the hair.
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 suitGray, silver, or brass-prone hairA violet or blue colorant sits opposite yellow on the colour wheel, so a trace of it deposited on the surface makes a warm cast read cooler. It washes out over the following few washes.
- colourant
- direct dye
- blue dye
What the whole list adds up to
- 3 cleansers
- 3 emollients
- 2 opacifiers
- 2 thickeners
- 2 pH adjusters
- 2 hard-water chelators
- 2 colourants
- 1 solvent
- 1 sulfate cleanser
- 1 amphoteric cleanser
- 1 secondary cleanser
- 1 mild anionic cleanser
- 1 salt
- 1 light ester
Drug facts actives
- selenium sulfide 1%
This product is an over-the-counter drug as well as a cosmetic. It treats a cosmetic scalp condition; it does not diagnose or treat disease.
Ingredient list captured 2026-08-21. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 11 oz
Seen at
$23.24
Good value under
$5
Priced above the products that do the same job. Stores sell it above the $5 line; products that do this job typically go for about $8 at this size.
Show the price ladder
Where we’ve seen it2 listings · 2 stores
-
Target
$7.9911 oz · $0.73/ozAug 21Lowest per oz
-
Origin Beauty
$23.2411 oz · $2.11/ozAug 30
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
- 11 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.
- Seen at $23.24 is the price we have observed for the 11 oz. We need three stores before we call a price commonly seen.
- Good value under $5 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $0.42/oz; at 11 oz that is $5. Under that line you are paying less than most of them.
- About $8 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 11 oz.
Formula
7
Formula score
7 of 10
Both the formula and the price land mid-range: it covers the core of what a shampoo does and costs about what shampoos cost per ounce.
How the score is counted
- 3 products we score as doing the same job cost less per ounce
- Costs more per ounce than 64% of the 805 shampoos we’ve priced
- No slip for detangling in the formula
- Reviewers mention 3 things they like about how it performs
- A working detergent systemWhat actually removes oil and product.3 pts
- Slip for detanglingReduces the force it takes to comb wet hair.2 pts
- A humectantBinds water into the hair.1 pt
- A hard-water chelatorBinds the minerals that dull hair in hard water.1 pt
- A pH adjusterBrings the formula to the acidic pH hair prefers.1 pt
- No detergent-dependent filmNothing that needs a clarifying wash to remove.1 pt
- Fragrance kept out of the top eightScent as a finishing touch, not a major share.1 pt
The formula score is completeness for the job: the share of the systems this product type is normally built around that we can find in this list, weighted. It is not efficacy, not quality, and it never compares across product types.
Does the same job, for less
Same derived functions — what it cleans, conditions, coats or holds — at a lower cost per ounce. Scent, texture and where you buy it can still differ.
Head & ShouldersClosest function
Clinical Strength Anti-Dandruff Citrus Shampoo for Advanced Oil Control
$1.04/oz $1.07/oz less
- Scalp active
- Protein-free
- Deep clean
- Function
- Also
Head & ShouldersLowest cost per oz
Clinical Strength Cooling Itch Relief Tangerine Shampoo
$0.89/oz $1.22/oz less
- Scalp active
- Protein-free
- Deep clean
- Function
- Also
Head & ShouldersClose function
Clinical Strength Dry Scalp Rescue Shampoo (Herb Floral)
$0.89/oz $1.22/oz less
- Scalp active
- Protein-free
- Deep clean
- Function
- Also
See more alternatives in the product library
These are functional neighbours, not personal recommendations — they are close on formula, not chosen for anyone. Get the one that fits your hair, routine, and budget
Final decision
Should you buy it?
Good for the right personBest user
Flaking scalps, looking for an over-the-counter scalp active and a protein-free formula
Biggest tradeoff
Less suited to anyone sensitive to fragrance, sulfate-free routines and fresh keratin treatments, or curly-method routines
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, against what the formula shows
Claims are quoted from the brand. We only mark one supported, partly supported, or conflicting when the ingredient list actually speaks to it; everything else stays "stated by the brand", which is not a criticism — most claims simply cannot be read off a label.
1
SupportedBacked by ingredients
0
Partly supportedSome supporting logic
1
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
Helps prevent and eliminate itchy scalp and visible flakes
It carries an over-the-counter anti-dandruff active.
—
Supported
A recognised active does the work.
How to read this
We look at the first 10–15 ingredients and what they do in a formula — not marketing. If the list doesn't speak to a claim, we don't assume.
Reviewers
What people report
Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings.
Effective at reducing scalp itching and visible flaking
A small amount is sufficient per use; many use it as-needed rather than daily
Aloe content appreciated for a moisturizing feel compared to typical medicated shampoos
reviewers with dry or sensitive scalpSome report it can strip color from color-treated hair
reviewers with dyed hairThorough rinsing is needed or a faint medicated odor can linger
More from Selsun Blue
How this page was made
- Everything above is generated from our researched product record — identity, the ingredient list as printed, the brand's own claims, dated price observations, and review themes written in our researchers' own words. No part of this page is written per 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 (3 manufacturer or regulatory, 1 retailer, 0 editorial), last checked 2026-08-25.
- Ingredient references are linked for 5 of 13 product-aware annotations on this page. Fit notes are conditional formulation guidance, not a conclusion about the finished product or about you.
- We have not tested this product in a lab and we do not physically test your hair. Formula readings come from the ingredient list; behaviour claims are labelled as the brand's.
- Ingredient order tells you relative amount only above roughly 1%. Prices are observations on the dates shown and change without notice.
- 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 v22. Record last updated 2026-08-25.