SILENT TREATMENT 30-Day Anti-Humidity Spray
Styler / Smoothing cream, mixed-hold
- Styler
- smoothing cream
- Sulfate-free
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: thedoux.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 22 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 22 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 above most smoothing creams
$8.40/oz at 2 oz, more than 86% of the 81 smoothing creams , which mostly run $3.50–7.03/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.
Gums and synthetic polymers together.
Softening ingredients sit alongside the film formers, so a hard shell is unlikely.
Middle of the range: noticeable on fine hair, light on coarse hair.
Absorbent powders or starches high in the list.
No oils or butters in the list.
No fast-drying alcohol in the list.
Water-insoluble silicones or waxes: a detergent wash is what removes them.
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) | solvent | The base everything else is dissolved in | Neutral |
| Dipropylene Glycol | humectant | Pulls water into the hair | Moisturizes |
| Polysilicone-29 | silicone | Smooths the cuticle and adds shine | Buildup |
| Hydroxypropyltrimonium Hydrolyzed Corn Starch | conditioning agent | Conditions and softens so hair combs through | Detangles |
| Phenethyl Alcohol | preservative | Keeps the product from spoiling | Fragrance |
| Hydrolyzed Keratin | film former | A supporting film former | Protein |
| Keratin | protein | A small amount of protein | Protein |
| Glycerin | humectant | Adds a little water-binding | Moisturizes |
| Silicone Quaternium-18 | silicone | A little smoothing and shine | Buildup |
| Fragrance | fragrance | The scent | Fragrance |
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)
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
Dipropylene Glycol
General function
A light humectant and solvent that helps fragrance and extracts dissolve evenly.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
PubChemMay suitFine or easily flattened hairLight and water-binding rather than oily, so it adds less weight than oils or butters do.
May suitVery dry or highly damaged hairA small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.
DependsClimate-sensitive or frizz-prone hairA 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
- solvent
-
3
Polysilicone-29
General function
A silicone network that leaves a longer-lasting smoothing film than plain dimethicone.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
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.
May suitMaximum-hold stylingFilm formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
- silicone
- film former
-
4
Hydroxypropyltrimonium Hydrolyzed Corn Starch
General function
A corn starch given a positive charge so it deposits on hair for slip and light body.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May suitFine or easily flattened hairAdds grip and body with no oil attached, which is what lifts fine hair at the root instead of weighing it down.
May suitFrizz-prone, damaged, or high-friction hairA cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
May suitVery dry or highly damaged hairThe class that does the detangling in a conditioner. It deposits lubrication where the cuticle is worn.
- conditioning agent
- film former
- starch
- ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
-
5
Phenethyl Alcohol
General function
A rose-scented alcohol that acts as both a mild preservative and a fragrance note.
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 routinesDeclared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
- preservative
- fragrance
-
6
Hydrolyzed Keratin
General function
Fragments of the same protein hair is made of. They fill gaps on damaged strands and make hair feel firmer for a few washes.
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 Cosmetic ScienceMay suitFrizz-prone, damaged, or high-friction hairFilling surface gaps evens out the cuticle, which is part of what makes damaged hair comb and reflect light more like undamaged hair.
May suitMaximum-hold stylingFilm 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 holdHow rigid the finish is depends on which polymer it is and what the formula pairs with it, not on there being one.
- film former
- protein
- hydrolysed protein
-
7
Keratin
General function
The protein hair is made of. On the outside of the strand it fills gaps and firms up the feel for a few washes.
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.
DependsVery dry or highly damaged hairUnhydrolysed protein is too large to enter the strand. It sits on the surface, which is a coating effect rather than internal reinforcement.
- protein
-
8
Glycerin
General function
Glycerin, also called glycerol, attracts moisture and mixes completely with water.
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.
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
-
9
Silicone Quaternium-18
General function
A conditioning silicone that clings to damaged areas and survives rinsing.
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 hairAmino-functional silicone carries a positive charge, so it binds where the cuticle is worn rather than coating evenly. Damaged areas get most of it.
May suitMaximum-hold stylingFilm formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
- silicone
- conditioning agent
- film former
-
10
Trideceth-12
- emulsifier
- solubilizer
-
11
Trideceth-6
- emulsifier
- solubilizer
-
12
Caprylhydroxamic Acid
General function
A coconut-derived preservative booster that also binds trace metals.
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.
- preservative
- hard-water chelator
-
13
Disodium EDTA
General function
Grabs metal ions from hard water so they cannot dull the hair or destabilise the formula.
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.
- hard-water chelator
-
14
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
What the whole list adds up to
- 4 film formers
- 2 solvents
- 2 humectants
- 2 silicones
- 2 conditioning agents
- 2 preservatives
- 2 fragrances
- 2 proteins
- 2 emulsifiers
- 2 solubilizers
- 2 hard-water chelators
- 1 starch
- 1 hydrolysed protein
- 1 declared fragrance
Ingredient list captured 2026-10-07. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 2 oz
Priced above the products that do the same job. Stores sell it above the $13 line; products that do this job typically go for about $16 at this size.
Show the price ladder
Where we’ve seen it6 listings · 6 stores
-
Walmart
$11.962 oz · $5.98/ozOct 8Lowest per ozSale · was $16.00
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TikTok Shop
$14.392 oz · $7.20/ozOct 8Sale · was $17.99
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Target
$16.792 oz · $8.39/ozOct 8
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Sally Beauty
$16.992 oz · $8.49/ozOct 8
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The Doux (brand site)
$17.992 oz · $8.99/ozOct 7
-
The Doux
$17.992 oz · $8.99/ozOct 8
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 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 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 $13 comes from the 4 products we score as doing the same job as this one. A quarter of them cost less than $6.73/oz; at 2 oz that is $13. Under that line you are paying less than most of them.
- About $16 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 2 oz.
Formula
Above the range for smoothing creams per ounce, on a formula that covers the middle of the format and has no close, cheaper equivalent in our library.
How the score is counted
- Nothing in our library does the same job for less
- Costs more per ounce than 86% of the 81 smoothing creams we’ve priced
- No softeners alongside the hold in the formula
- Reviewers mention 2 things they like about how it performs
- A hold systemThe polymer, gum, or wax that holds the shape.3 pts
- Softeners alongside the holdWhat keeps a film flexible instead of brittle.2 pts
- No drying alcohol in the first threeFast drying without leading on alcohol.2 pts
- A humectantBinds water into the hair.1 pt
- A humidity claim with a mechanismThe claim has a film former or silicone behind it.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
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.
- Protein-free
- Alcohol-free
- No aerosol
- Function
- Also
- Protein
- Alcohol-free
- No aerosol
- Function
- Also
- Heat protect
- Alcohol-free
- Vegan & CF
- 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?
An above-range pick for the hair it suitsSoft, over-stretchy hair, looking for protein high in the formula and real detangling slip
Worth skipping for anyone sensitive to fragrance, curly-method routines, or hair that stiffens on protein
Nothing in our library matches it closely 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.
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 say the spray helps guard hair against heat damage during blow drying and flat ironing.
Reviewers across hair typesMost reviewers like the sweet, light scent, though a few find it overpowering or not to their taste.
Reviewers across hair typesFeel is split: some reviewers find hair light and silky, while others say it weighs hair down or dries it out.
Reviewers across hair typesReviewers split on humidity: some say frizz stayed away, while others say their hair puffed or reverted.
Reviewers in humid climates or after silk pressesMore from The Doux
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 (0 manufacturer or regulatory, 1 retailer, 3 editorial), last checked 2026-10-31.
- Ingredient references are linked for 6 of 11 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.
