EverStrong Thickening Conditioner with rosemary leaf fortifies fragile, thin hair to promote thicker-looking locks
A mid-weight formula: it will not flatten fine hair, but lift is not its main job.
- Polyquaternium-37
- Amodimethicone
Neutral on lift.
Conditioner / Everyday rinse-out, detangling
Add it to your products. We’ll tell you if it’s ever recalled.
Scent:
Notes: fresh.
“Experience a purely sensorial lush, luxurious lather and a fresh aromatic fragrance that blooms” (Brand page)
Manufacturer page: lorealparisusa.com
Personal fit
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.
$49 with 60 days of follow-up questions and plan updates
$99 with 12 months. Pay once; the year renews only if you choose.
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
$1.53/oz at 8.5 oz, less than 55% of the 1119 conditioners , which mostly run $0.94–3.41/oz.
Great for
Maybe skip if
What the formula actually does
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.
Conditioning agents sit high in the list, so this is a detangling formula.
Oils are present, but low enough to be a finishing touch.
Middle of the range: noticeable on fine hair, light on coarse hair.
Humectants appear, but low enough to be a minor part.
No protein or amino acids in the list.
Water-insoluble silicones or waxes: a detergent wash is what removes them.
No chelating agent in the list.
Fragrance is in the first eight ingredients, so it makes up a larger share of the formula.
Ingredients that matter
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 |
|---|---|---|---|
| WaterAQUA / WATER / EAU | solvent | The base everything else is dissolved in | Neutral |
| Cetearyl Alcohol | fatty alcohol | Thickens and conditions (not a drying alcohol) | Softens |
| Behentrimonium Chloride | conditioning agent | Conditions and softens so hair combs through | Detangles |
| Isopropyl Myristate | light ester | Light slip without much weight | Softens |
| Cetyl Esters | light ester | Light slip without much weight | Softens |
| FragrancePARFUM / FRAGRANCE | fragrance | The scent | Fragrance |
| Isopropyl Alcohol | drying alcohol | A small amount, for fast drying | Drying |
| Dimethicone | silicone | A little smoothing and shine | Buildup |
| Amodimethicone | silicone | A little smoothing and shine | Buildup |
| Limonene | fragrance | The scent | Fragrance |
| Linalool | fragrance | The scent | Fragrance |
| Butylphenyl Methylpropional | fragrance | The scent | Fragrance |
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.
The base of almost every rinse-off and cream hair product. It carries everything else and is normally the first ingredient on the label.
Listed in the first three ingredients, it is likely a structural part of this formula.
A waxy fatty alcohol - nothing like drying alcohol. It gives conditioners their body and leaves a soft, smoothing film on the hair.
In conditioner, cetearyl alcohol gives the emulsion its creamy structure and helps it spread evenly through the hair. Its emollient layer adds slip and a smoother feel.
Listed in the first three ingredients, it is likely a structural part of this formula.
May suit dry, coarse, or high-porosity hair that benefits from added slip and a more substantial conditioning film.
Deposits with the cationic conditioners and helps them lie flat along the strand, which is where the detangling actually comes from.
Consider if hair is fine or easily flattened: a formula built heavily around fatty alcohols can feel richer than a lightweight conditioner.
A positively charged conditioning agent that binds to damaged, negatively charged spots on the hair. It is the main detangling ingredient in most rinse-out conditioners.
Listed in the first three ingredients, it is likely a structural part of this formula.
Electrokinetic measurement puts the C22 quat ahead of the C16 ones for deposition: the longer chain adds van der Waals stabilisation on top of the charge binding. That extra deposit is what coarse hair usually needs to comb through.
A cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
Substantive by design. A routine with no detergent wash gives it nothing to leave with.
A very light ester that makes products glide and disappear quickly on the hair.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
A light emollient: it softens the surface with noticeably less weight than an oil or a butter.
Spreads thin and lowers friction between strands without the heaviness of a fixed oil.
A waxy ester blend that replaces spermaceti in creams. It thickens and leaves a smooth, non-greasy finish.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
A light emollient: it softens the surface with noticeably less weight than an oil or a butter.
Spreads thin and lowers friction between strands without the heaviness of a fixed oil.
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.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
A fast-evaporating alcohol used as a solvent and to speed drying. Well down the list it is a processing aid; near the top it can leave hair feeling dry.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Evaporates on contact, which is how a spray sets almost instantly and leaves no weight behind it.
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.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
A surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.
Lays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.
A thickening polymer that gives creams and curl products their bounce and helps them cling to the strand.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Cationic polymers hold a curl loosely and stay soft, which is why they turn up in definition products rather than firm-hold ones.
A cationic polymer stays on the hair through rinsing, which is what keeps static and combing friction down after the wash.
Film formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
Mineral oil. It seals the surface and adds slip, and takes detergent to remove.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
Forms a physical barrier on the strand that slows water leaving it. Nothing else in a formula holds moisture in as bluntly.
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.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Holds hard-water minerals in solution so they rinse away instead of depositing on the hair.
The 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.
Where a warm cast comes from water minerals rather than from the hair itself, holding those metals in solution is what removes it.
An amino acid that holds water and carries a positive charge, so it is drawn to damaged spots on the strand.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.
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.
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
A silicone modified to stick where hair is damaged, so it smooths selectively instead of coating everything. It resists rinsing more than plain dimethicone.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
A surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.
Amino-functional silicone carries a positive charge, so it binds where the cuticle is worn rather than coating evenly. Damaged areas get most of it.
Film formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
A citrus-smelling fragrance component that EU rules require to be named separately because some people react to it.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
One 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.
A floral fragrance component listed separately as a recognised contact allergen.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
One 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.
A floral fragrance component (lilial) named separately as a recognised allergen; increasingly reformulated out.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
One 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.
A rose-like fragrance component named separately as a recognised allergen.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
One 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.
A ceramide-like lipid used to reinforce the outer surface of damaged hair.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Restoring surface lipids lowers friction between strands, which is where much of the roughness in damaged hair comes from.
A lipid, not a protein, despite sitting alongside proteins in most repair claims. It does not carry the stiffening effect.
Ceramides are the lipid class bleaching and heat deplete. Replacing them works on the surface layer rather than adding protein stiffness.
Ingredient list captured 2026-09-22. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 8.5 oz
Good value on sale. Some stores sell it under the $12 line; products that do this job typically go for about $20 at this size.
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.
Formula
A complete formula at an ordinary price: mid-range per ounce among conditioners, with the working systems in place.
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.
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
Hair that stiffens on protein, for a protein-free formula and real detangling slip
Less suited to anyone sensitive to fragrance, curly-method routines, or very dry or high-damage hair
Garnier Fructis Curl Nourish Conditioner 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
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.
EverStrong Thickening Conditioner with rosemary leaf fortifies fragile, thin hair to promote thicker-looking locks
A mid-weight formula: it will not flatten fine hair, but lift is not its main job.
Neutral on lift.
The system injects strength into hair from the 1st wash, making it 15X stronger*
A brand-run study. We report it as stated and do not repeat the number as fact.
—
Only the brand’s testing shows this.
Our formulas are especially gentle on fine hair
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
There are no harsh sulfates, salts or surfactants that can strip, dull and damage hair
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
Experience a purely sensorial lush, luxurious lather and a fresh aromatic fragrance that blooms
Not measurable from ingredients; depends on personal preference.
—
Subjective feel varies by hair.
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
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.
Some reviewers say they notice less hair fall or shedding in the shower and brush after using it.
less sheddingReviewers with fine or thin hair report it adds noticeable thickness, volume, and fullness.
fine or thin hairA few reviewers dislike the scent, describing it as soapy, chemical, or like a men's fragrance.
scent