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Sun Bum

Scalp & Hair Mist SPF 30

Leave-in / Everyday leave-in, medium-weight

  • Leave-in
  • spray
  • Sulfate-free
  • Silicone-free
  • Protein-free
  • Vegan · label states
  • Cruelty-free · label states
Size2 oz
Price$17.49seen at one store · 2 oz
Price / oz$8.75/ozat 2 oz

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.

Listing used for research: ulta.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 21 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

$8.75/oz at 2 oz, more than 91% of the 749 leave-ins , which mostly run $1.31–5.50/oz.

View alternatives

Great for

Protein-sensitive hairthat stiffens when protein is added
Curly-method routinesno sulfates and no water-insoluble silicones
Curl definitionfilm formers hold a clump together
Silicone-free routinesno silicones appear in the list
Stretching wash daysnothing here needs a detergent to remove
Vegan and cruelty-freeour researched record has it as both

Maybe skip if

this product has a scent
Very dry or damaged hairit contains fast-drying alcohol
Hair that needs proteinthere is none in this list
Hair that tangles wetnothing here makes combing easier

Whether this weight suits your hair depends on density, porosity and how much you already layer. That is what the consultation looks at.

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.

Weight on the hair Medium

Middle of the range: noticeable on fine hair, light on coarse hair.

Slip and detangling Some

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

Water-binding (humectants) Moderate

Humectants in the working part of the formula.

Oils and butters None

No oils or butters in the list.

Protein None

No protein or amino acids in the list.

Needs detergent to remove No

Nothing here needs a detergent wash to remove.

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.

IngredientWhat it doesWhy it mattersChip
Alcohol Denat. drying alcohol Speeds drying but can leave hair feeling dry Drying
Acrylates/Octylacrylamide Copolymer film former Lays down the film that holds a shape Holds
Polyester-8 film former Lays down the film that holds a shape Holds
Butyloctyl Salicylate emollient Softens and smooths the strand Softens
Macrocystis Pyrifera (Kelp) ExtractAlgae Extract botanical extract A plant extract, there as much for marketing as for function Neutral
Laminaria Digitata Extract botanical extract A plant extract, there as much for marketing as for function Neutral
Helianthus Annuus (Sunflower) Seed Extract botanical extract A trace plant extract Stabilizes
Caprylic/Capric Triglyceride light ester A light, silky feel Softens
Fragrance fragrance The scent Fragrance
What the list leaves out, and what it carriesNo sulfates or silicones. Protein-free: this is built for moisture rather than for strengthening. Contains fragrance. Fast-drying alcohol is in the list.
Full ingredient list (10)

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 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
  • 2 Acrylates/Octylacrylamide Copolymer
    General function

    A synthetic film-forming polymer. Polymers of this kind dry to a continuous film on the hair, which is how a styling product holds a shape.

    Leading ingredient

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

    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.

    • film former
    • polymer
  • 3 Polyester-8
    • film former
    • polymer
  • 4 Butyloctyl Salicylate
    • emollient
    • light ester
  • 5 Macrocystis Pyrifera (Kelp) Extract · Algae Extract
    General function

    A seaweed extract used at low levels for moisture and mineral claims.

    Supporting ingredient

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

    • botanical extract
  • 6 Laminaria Digitata Extract
    General function

    An extract of Laminaria Digitata. 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
  • ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
  • 7 Helianthus Annuus (Sunflower) Seed Extract
    General function

    A sunflower seed extract used at low levels for antioxidants and label appeal.

    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.

    • botanical extract
    • antioxidant
  • 8 Caprylic/Capric Triglyceride
    General function

    A light, refined coconut-derived oil that spreads easily and does not go rancid. It gives slip without a heavy feel.

    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

    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
  • 9 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
  • 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 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

What the whole list adds up to

  • 3 botanical extracts
  • 2 film formers
  • 2 polymers
  • 2 emollients
  • 2 light esters
  • 1 drying alcohol
  • 1 solvent
  • 1 antioxidant
  • 1 humectant
  • 1 fragrance
  • 1 declared fragrance

Ingredient list captured 2026-10-12. Formulas change, so check the package in your hand when an ingredient matters to you.

Price · 2 oz

Seen at $17.49 1 store · checked Oct 13
Good value under $4 Under $1.90/oz it costs less than three-quarters of the 7 products we score as doing the same job

Priced above the products that do the same job. Stores sell it above the $4 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

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 $17.49 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 $4 comes from the 7 products we score as doing the same job as this one. A quarter of them cost less than $1.90/oz; at 2 oz that is $4. Under that line you are paying less than most of them.
  4. About $8 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 2 oz.

Formula

Formula score
8 of 10

The formula carries what a leave-in is built around, and 3 products we score as close matches cost at least a quarter less per ounce. The difference is the label, not the formula.

How the score is counted
  • 3 products we score as doing the same job cost less per ounce
  • Costs more per ounce than 91% of the 749 leave-ins we’ve priced
  • Covers 5 of the 6 things a leave-in should do
  • Reviewers mention 2 recurring complaints
  • Conditioning agents up frontWhat makes wet hair comb through.2 pts
  • A humectantBinds water into the hair.2 pts
  • A light baseWater or a volatile carrier first, so it does not weigh hair down.2 pts
  • Oils or butters in the working zoneSoftens the strand rather than just coating it.2 pts
  • 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 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.

BiolageLighter feel Full Rescue Densifying Leave-In Spray $4.29/oz $4.46/oz less
  • Protein-free
  • Curly method
  • Lightweight
· Close function
Function
  • Slip and detangling
  • Weight on the hair
Also
  • 8.4 oz bottle
  • Sold through salons
Compare
As I AmLowest cost per oz Coconut Leave-In Conditioner $0.87/oz $7.88/oz less
  • Protein-free
  • Curly method
  • Silicone-free
· Close function
Function
  • Slip and detangling
  • Fast-drying alcohol
Also
  • Coconut scent
  • Drugstore tier
  • 16 oz bottle
Compare
As I AmClose function Leave-In Conditioner (Classic) $1.31/oz $7.44/oz less
  • Protein-free
  • Curly method
  • Silicone-free
Function
  • Slip and detangling
  • Fast-drying alcohol
Also
  • Mint scent
  • Drugstore tier
  • 8 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

Hair that stiffens on protein, for a protein-free formula and a curly-method-compatible formula

Biggest tradeoff

Less suited to anyone sensitive to fragrance, very dry or high-damage hair, or soft, over-stretchy hair that needs protein

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
1
Partly supportedSome supporting logic
2
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
a lightweight nourishing mist to help protect your scalp from the sun while not weighing down your hair

Humectants and emollients are present, but lower in the list than the claim implies.

  • Butyloctyl Salicylate
  • Caprylic/Capric Triglyceride
  • Glycerin
Partly supported

Some hydration, at a low level.

water-resistant for 80 minutes

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

—

Stated by brand

Can’t be confirmed from label.

Hawaii Act 104 Compliant: contains no Oxybenzone or Octinoxate

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

—

Stated by brand

Can’t be confirmed from label.

Vegan & Cruelty-Free

Our researched record has this brand or product as vegan.

—

Supported

Matches our researched record.

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.

Fans say it is an easy, lightweight way to protect a scalp or part line that burns, and that it feels less greasy and crusty than regular sunscreen.

5-star reviewers, some with thin hair or bald spots

A few reviewers with blonde, brown or extension hair reported the mist turning hair orange or pink and wished there were a warning.

low-rating reviewers with light or extension hair

Many reviewers say it leaves hair and scalp greasy, sticky or stiff, and some found it more oily than ordinary sunscreen despite the non-greasy promise.

low-rating Yotpo reviewers on the brand site

Reviewers often love the scent, but several of the happy reviewers still admit it makes hair look a bit greasy after a full day.

brand-site reviewers

More from Sun Bum

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.
  • 7 sources consulted for this product (1 manufacturer or regulatory, 4 retailer, 2 editorial), last checked 2026-10-13.
  • Ingredient references are linked for 2 of 5 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 2026-10-12.

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