Miracle Shield
Heat protectant / Lotion, medium-weight
- Heat protectant
- Sulfate-free
- Silicone-free
- Protein-free
- Vegan · brand states
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: curlsmith.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.
Show all 20 factors we check
The rest of what your plan weighs on this product.
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.
Your avoid-list
Priced with its peers
$3.50/oz at 8 oz, less than 62% of the 295 heat protectants , which mostly run $2.41–6.78/oz.
Great for
Maybe skip if
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.
Middle of the range: noticeable on fine hair, light on coarse hair.
Some slip, mostly from esters or silicones rather than conditioners.
Nothing here needs a detergent wash to remove.
Humectants near the top: binding water is one of its main jobs.
No fast-drying alcohol in the list.
Fragrance is listed; it sits below the working ingredients.
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 |
| Crambe Abyssinica Seed Oil Phytosterol Esters | light ester | Light slip without much weight | Softens |
| Hydrogenated Ethylhexyl Olivate | light ester | Light slip without much weight | Softens |
| Saccharomyces Cerevisiae Extract | botanical extract | A plant extract, there as much for marketing as for function | Neutral |
| Glycerin | humectant | Pulls water into the hair | Moisturizes |
| Leuconostoc/Radish Root Ferment Filtrate | preservative | Keeps the product from spoiling | Stabilizes |
| Opuntia Tuna Fruit Extract | botanical extract | A trace plant extract | Neutral |
| Ribes Nigrum (Black Currant) Fruit Extract | botanical extract | A trace plant extract | Neutral |
| FragranceFragrance (Parfum) | fragrance | The scent | Fragrance |
| Geraniol | fragrance | The scent | Fragrance |
| Limonene | fragrance | The scent | Fragrance |
| Linalool | fragrance | The scent | Fragrance |
Full ingredient list (34)
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 ingredientListed in the first three ingredients, it is likely a structural part of this formula.
- solvent
-
2
Crambe Abyssinica Seed Oil Phytosterol Esters
General function
A plant-sterol ester from crambe oil, used as a plant alternative to silicone for slip and shine.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
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
-
3
Hydrogenated Ethylhexyl Olivate
General function
An olive-derived emollient that softens and thickens without a heavy oily feel.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
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
-
4
Saccharomyces Cerevisiae Extract
General function
An extract of Saccharomyces Cerevisiae. Plant extracts are used across a wide range of levels, and label order is the best guide to how much is here.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- botanical extract
-
5
Glycerin
General function
Glycerin, also called glycerol, attracts moisture and mixes completely with water.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
Scientific ReportsMay suitDry, coarse, or high-porosity hairHigh-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 hairBinds 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 hairWater 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.
- humectant
- ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
-
6
Leuconostoc/Radish Root Ferment Filtrate
General function
A fermentation-derived preservative used in "preservative-free" positioned formulas.
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.
- preservative
-
7
Opuntia Tuna Fruit Extract
General function
An extract from the fruit of Opuntia Tuna. Plant extracts are used across a wide range of levels, and label order is the best guide to how much is here.
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.
- botanical extract
-
8
Ribes Nigrum (Black Currant) Fruit Extract
General function
An extract from the fruit of Black Currant (Ribes Nigrum). Plant extracts are used across a wide range of levels, and label order is the best guide to how much is here.
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.
- botanical extract
-
9
Psidium Guajava Fruit Extract
- botanical extract
-
10
Brassica Oleracea Acephala Leaf Extract
- botanical extract
- 11 Lentinus Edodes (Shitake Mushroom) Extract\
- 12 Cucurbita Pepo (Pumpkin) Seed Extract\
-
13
Sorbitan Isostearate
General function
A fatty ester. Esters give slip and a smooth after-feel; lighter ones read dry and silky, heavier ones read rich.
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 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
-
14
Tocopherol
- antioxidant
- vitamin
-
15
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.
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 suitFrizz-prone, damaged, or high-friction hairDeposits a lubricating layer that makes combing easier, which is most of what stops mechanical damage adding to frizz.
- emollient
- conditioning agent
-
16
Hydrogenated Olive Oil Unsaponifiables
General function
The waxy fraction of olive oil, used to seal and soften without a liquid-oil feel.
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 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.
May suitVery dry or highly damaged hairForms a physical barrier on the strand that slows water leaving it. Nothing else in a formula holds moisture in as bluntly.
- emollient
- sealant
-
17
Polyester-11
- film former
- polymer
-
18
Polysorbate 60
- emulsifier
- solubilizer
-
19
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
- film former
- polymer
-
20
C20-22 Alkyl Phosphate
- emollient
- emulsifier
- light ester
- 21 C20-22 Alcohols
-
22
Ethylhexylglycerin
General function
A preservative booster that also adds a little softness. Almost always paired with phenoxyethanol.
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 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.
- preservative
- emollient
-
23
Aminomethyl Propanol
General function
A base used in trace amounts to neutralise acidic hold polymers so they thicken and set properly.
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.
PubChemDependsFrizz-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
-
24
Sodium Hydroxide
General function
A strong base used in trace amounts to raise pH; fully neutralised in the finished product.
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 TrichologyDependsFrizz-prone, damaged, or high-friction hairThe alkali half of a pH-adjusting pair, used in small amounts to bring a formula up to its target rather than to make it alkaline. Alkaline conditions raise the fibre's surface charge and lift the scales — but the finished pH is not on the label.
- pH adjuster
-
25
Sodium Benzoate
- preservative
-
26
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
-
27
Potassium Sorbate
- preservative
-
28
Phenoxyethanol
- preservative
-
29
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 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
-
30
Geraniol
General function
A rose-scented fragrance component, listed on its own because some people react to 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 routinesOne 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.
- fragrance
- named fragrance allergen
-
31
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 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 not suitFragrance-sensitive routinesOne 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.
- fragrance
- named fragrance allergen
-
32
Linalool
General function
A floral fragrance component listed separately as a recognised contact allergen.
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 not suitFragrance-sensitive routinesOne 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.
- fragrance
- named fragrance allergen
-
33
Dimethyl Phenethyl Acetate
General function
A fresh, floral fragrance component.
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
- 34 Citrus Aurantium (Orange) Peel Oil. \
What the whole list adds up to
- 7 emollients
- 5 botanical extracts
- 5 preservatives
- 5 fragrances
- 4 light esters
- 3 pH adjusters
- 3 named fragrance allergens
- 2 film formers
- 2 polymers
- 2 emulsifiers
- 1 solvent
- 1 humectant
- 1 antioxidant
- 1 vitamin
Ingredient list captured 2026-10-08. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 8 oz
Good value on sale. Some stores sell it under the $27 line; products that do this job typically go for about $37 at this size.
Show the price ladder
Where we’ve seen it6 listings · 5 stores
-
FragranceNet.com
$17.638 oz · $2.20/ozOct 8Lowest per ozSale · was $27.99
-
Curlsmith (brand site)
$28.008 oz · $3.50/ozOct 7
-
Ulta Beauty (ulta.com)
$28.008 oz · $3.50/ozOct 7
-
Ulta Beauty
$28.008 oz · $3.50/ozOct 8
-
Sephora
$28.008 oz · $3.50/ozOct 8
-
Ulta Beauty (ulta.com)
$28.008 oz · $3.50/ozOct 7
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
- 8 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 8 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 $27 comes from the 6 products we score as doing the same job as this one. A quarter of them cost less than $3.39/oz; at 8 oz that is $27. Under that line you are paying less than most of them.
- About $37 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 8 oz.
Formula
Nothing separates this from the middle of the range for heat protectants, on formula or on cost per ounce.
How the score is counted
- 1 products that do the same job cost less per ounce
- Costs less per ounce than 62% of the 295 heat protectants we’ve priced
- No stated heat claim in the formula
- Reviewers mention 2 things they like about how it performs
- A film-forming heat spreaderSilicones or polymers that spread heat along the strand.3 pts
- A stated heat claimThe brand names the protection it claims.2 pts
- A light baseWater or a volatile carrier first, so it does not weigh hair down.2 pts
- A humectantBinds water into the hair.1 pt
- Slip for detanglingReduces the force it takes to comb wet hair.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.
- Lightweight
- Silicone-free
- Rinses clean
- Function
- Also
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?
A solid pick for the hair it suitsHair that stiffens on protein who want a protein-free formula and moisture that stays in
Less suited to anyone sensitive to fragrance, very dry or very humid climates, or people shopping on a budget
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.
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.
Several reviewers say the spray keeps curls light and does not weigh hair down.
Mostly curly and wavy reviewers, across both the default-order and lowest-rating reviews in the corpus.Reviewers who blow-dry or use hot tools report that hair stays smooth and frizz-free afterwards.
Reviewers who blow-dry, diffuse or heat-style their hair, several with curly or frizzy hair.Several reviewers describe hair left greasy, sticky or dirty-feeling, and some of them have fine or wavy hair.
Lower-rated reviewers, several of whom named fine or wavy hair as their type.Some reviewers with very fine or low-density hair say it leaves strands dry, coarse or crunchy.
Lower-rated reviewers who described their own hair as very fine or low-density.Opinions on the scent split, with some calling it a pleasant forest-like smell and others finding it strong or irritating.
Reviewers on both the praise and the complaint sides of the corpus.More from Curlsmith
How this page was made
- Everything above comes from our researched product record: identity, the ingredient list as printed, the brand's own claims, dated prices and review themes our researchers wrote in their own words. No part of this page is written by hand for one product.
- The value band is a fixed label over two stored numbers: this product’s cost per ounce as a percentile of every product of this type we have priced, each at the size it is most often sold in, and how many products we score as doing the same job cost at least a quarter less per ounce.
- Both scores out of ten are defined on this page. The formula score is completeness for the job, computed from a fixed per-format checklist shown beneath the gauge; the price score is cost per ounce against every product of this type we have priced.
- The "Is this right for you?" panel reads only your own consultation answers, and it applies exactly the filters our recommendation engine applies. It is computed when you load the page and is never stored on it.
- 4 sources consulted for this product (1 manufacturer or regulatory, 1 retailer, 2 editorial), last checked 2026-10-31.
- Ingredient references are linked for 8 of 15 product-aware annotations on this page. Fit notes are general formulation guidance. They aren’t a verdict on the finished product or on you.
- We haven’t tested this product in a lab, and we don’t physically test your hair. Formula readings come from the ingredient list. Claims about how it behaves are labelled as the brand's.
- Ingredient order tells you relative amount only above roughly 1%. Prices are what we saw on the dates shown and can change.
- Ingredient names link to our ingredient library, where each entry shows what it does, which product types use it, and where it usually sits on a label across everything we have researched.
- This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
- Formula readings: derivation v23. Record last updated 2026-10-31.
