Schwarzkopf Professional

BC Bonacure Repair Rescue Sealed Ends+ Arginine

Leave-in

Leave-in
serum
Moisture-rich
Vegan · label states
Not cruelty-free · PETA-listed

Size3.38 fl oz

Price$23.99seen at one store · 3.38 oz

Price / oz$7.10/ozat 3.38 oz

Where to buy1 store

Scent:

The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.

Manufacturer page: schwarzkopf-professional.com

Personal fit

Is this right for you?

Factor Your profile Fit

Best for hair types All types Not in your profile

Moisture level Moderate Not in your profile

Oils and butters None Not in your profile

Slip / detangling High Not in your profile

Fragrance Present Not in your profile

Silicone / wax buildup High Not in your profile

Clarifying wash needed Moderate Not in your profile

Parabens / preservatives Present Not in your profile

Essential oils Present Not in your profile

Vegan / cruelty-free Vegan · label statesNot cruelty-free · PETA-listed Not in your profile

Show all 17 factors we check

The rest of what your plan weighs on this product.

Animal-derived ingredients Vegan · label states Not in your profile

Heavy humectants Not determined Not in your profile

UV filter None listed Not in your profile

pH adjusted Adjusted Not in your profile

Ingredient list 30 ingredientsAbout average Not in your profile

Price tier Masstige Not in your profile

Where to buy it Salons · Grocery / mass +1Widely sold 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.

Same job for less elsewhere

$7.10/oz at 3.38 oz — more than 84% of the 477 leave-ins , which mostly run $1.17–5.50/oz.

View alternatives

Great for

Maximum slipfor hair that tangles the moment it is wet

Dry, thirsty hairhumectants and emollients both sit up front

Curl definitionfilm formers hold a clump together

Cuticle-smoothing pHa pH adjuster brings it to the acidic range hair prefers

Easy to findsold through several channels

Maybe skip if

this product carries a scent

Curly-method routinesthese silicones need a detergent to remove

Vegan and cruelty-freeour record does not support both claims here

Whether this weight sits well on your hair depends on density, porosity, and how much you already layer — that is what the consultation works out.

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.

Slip and detangling High

Conditioning agents sit high in the list — this is a detangling formula.

Water-binding (humectants) Moderate

Humectants in the working part of the formula.

Oils and butters None

No oils or butters in the list.

Needs detergent to remove Yes

Water-insoluble silicones or waxes: a detergent wash is what removes them.

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
WaterAqua	solvent	The base everything else is dissolved in	Neutral
Dimethicone	silicone	Smooths the cuticle and adds shine	Buildup
Dimethiconol	silicone	Smooths the cuticle and adds shine	Buildup
Behenoyl PG-Trimonium Chloride	—	—	Neutral
Laureth-4	emulsifier	Keeps oil and water mixed	Stabilizes
Polyepsilon-Lysine	amino acid	Small protein fragments that bind water	Protein
Hydroxypropylammonium Gluconate	humectant	Pulls water into the hair	Detangles
Hydroxypropylgluconamide	humectant	Pulls water into the hair	Detangles
Soy Amino Acids	amino acid	A trace of amino acids	Protein
Wheat Amino Acids	protein	A small amount of protein	Protein
FragranceParfum	fragrance	The scent	Fragrance
Tetramethyl Acetyloctahydronaphthalenes	fragrance	The scent	Fragrance

What the list leaves out, and what it carriesContains fragrance. The silicones here need a detergent wash to come off.

Full ingredient list (30)

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 · 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 ingredient
Listed in the first three ingredients, it is likely a structural part of this formula.
- solvent
2 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.

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 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 hair
Lays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.

May not suitBuild-up-sensitive routines
Dimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.
- silicone
- emollient
- conditioning agent
3 Dimethiconol

General function
A high-shine silicone often paired with dimethicone for a smoother, glossier finish.

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 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 hair
Lays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.

May not suitBuild-up-sensitive routines
Dimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.

PubChem
- silicone
- emollient
4 Behenoyl PG-Trimonium Chloride
5 Laureth-4

General function
An oil-side emulsifier that helps a cream hold together.

Supporting ingredient
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- emulsifier
6 Polyepsilon-Lysine
- amino acid
7 Hydroxypropylammonium Gluconate

General function
A sugar-derived conditioning agent with a positive charge, used alongside hydroxypropylgluconamide.

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

May suitFrizz-prone, damaged, or high-friction hair
A 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 hair
The class that does the detangling in a conditioner. It deposits lubrication where the cuticle is worn.

DependsBuild-up-sensitive routines
Substantive by design. A routine with no detergent wash gives it nothing to leave with.
- humectant
- conditioning agent
8 Hydroxypropylgluconamide

General function
A sugar-derived conditioning agent used in bond-repair positioned formulas for moisture and slip.

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

May suitFrizz-prone, damaged, or high-friction hair
Deposits a lubricating layer that makes combing easier, which is most of what stops mechanical damage adding to frizz.

May suitVery dry or highly damaged hair
Humectants bind water into the strand, and water — not oil — is what makes dry hair flexible instead of brittle.

DependsClimate-sensitive or frizz-prone hair
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.
- humectant
- conditioning agent
9 Soy Amino Acids

General function
An amino acid of the kind hair protein is built from. Small enough to sit inside the cuticle, and used for water binding rather than strength.

Secondary ingredient
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.

May suitVery dry or highly damaged hair
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.

DependsClimate-sensitive or frizz-prone hair
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.

DependsProtein-sensitive hair
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
- amino acid
- humectant
- protein
10 Wheat Amino Acids

General function
Wheat protein broken into amino acids, used for lightweight moisture binding.

Secondary ingredient
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.

May suitVery dry or highly damaged hair
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.

DependsProtein-sensitive hair
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
- protein
- amino acid
11 Serine

General function
One of the amino acids that make up hair protein, added for water binding.

Secondary ingredient
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.

May suitVery dry or highly damaged hair
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.

DependsProtein-sensitive hair
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
- amino acid
12 Threonine

General function
An amino acid used in conditioning blends for moisture binding.

Secondary ingredient
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.

May suitVery dry or highly damaged hair
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.

DependsProtein-sensitive hair
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
- amino acid
13 Arginine Hcl

General function
A salt form of the amino acid arginine, used for moisture binding and to adjust pH.

Secondary ingredient
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.

May suitVery dry or highly damaged hair
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.

DependsClimate-sensitive or frizz-prone hair
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.

DependsProtein-sensitive hair
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.

PubChem
- amino acid
- humectant
14 Hydroxyethylcellulose

General function
A cellulose thickener that gives gels and conditioners their body and adds a soft, flexible film.

Secondary ingredient
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.

May suitCurls or waves needing flexible hold
A polysaccharide film stays softer than a synthetic one as it dries, which is what leaves a curl defined but still able to move.

May suitFrizz-prone, damaged, or high-friction hair
A soft film binds neighbouring strands together, which is most of what keeps flyaways lying down without stiffness.

May not suitMaximum-hold styling
Gum films stay soft. A style that needs firm fixation usually wants a synthetic polymer doing the holding.

PubChem
- gum
- thickener
- film former
▾Below about this point, order stops being meaningful — these are typically used at 1% or less.
15 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 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
16 Hexylene Glycol

General function
A solvent that keeps other ingredients dissolved and helps preservatives work.

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
Light and water-binding rather than oily, so it hydrates without contributing weight.

May suitVery dry or highly damaged hair
A small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.

DependsClimate-sensitive or frizz-prone hair
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.

PubChem
- solvent
- humectant
17 Phenoxyethanol
- preservative
18 Methylparaben
- paraben
- preservative
19 Hydroxypropyl Guar Hydroxypropyltrimonium Chloride

General function
A guar-bean conditioning polymer that deposits during rinsing. It is why a strong shampoo can still leave hair combable.

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 suitCurls or waves needing flexible hold
Gums thicken and set soft, which gives definition that bends rather than a rigid cast.

May suitFrizz-prone, damaged, or high-friction hair
Cationic conditioners bind to the negatively charged damaged cuticle, laying it flat and cutting the friction that causes combing breakage.

May suitMaximum-hold styling
A styling polymer dries into a film across the strands, which is what makes a shape hold instead of relax.
- conditioning agent
- polymer
- gum
20 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 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 suitBuild-up-sensitive routines
Holds hard-water minerals in solution so they rinse away instead of depositing on the hair.

May suitFrizz-prone, damaged, or high-friction 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.

May suitGray, silver, or brass-prone hair
Where a warm cast comes from water minerals rather than from the hair itself, holding those metals in solution is what removes it.

International Journal of Trichology
- pH adjuster
- hard-water chelator
21 Tetramethyl Acetyloctahydronaphthalenes

General function
A synthetic musk or woody-amber note used as a fragrance base.

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
22 Citrus Aurantium Peel Oil

General function
A cold-pressed orange peel oil used for scent. Citrus oils are naturally high in limonene.

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
Essential oils are fragrance. Several carry constituents on the EU list of declared fragrance allergens, so a label with no fragrance line can still be a scented product.
- botanical extract
- essential oil
- fragrance
23 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 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
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.

PubChem
- fragrance
- named fragrance allergen
24 Geraniol

General function
A rose-scented fragrance component, listed on its own because some people react to 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
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.
- fragrance
- named fragrance allergen
25 Benzyl Alcohol
- preservative
- solvent
26 Tartaric Acid

General function
A fruit acid used to set an acidic pH; at higher levels it also loosens surface build-up.

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.

DependsFrizz-prone, damaged, or high-friction hair
pH 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.

PubChem
- pH adjuster
- exfoliant
27 Coumarin

General function
A sweet, hay-like fragrance component listed separately as a recognised allergen.

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
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.

PubChem
- fragrance
- named fragrance allergen
28 Vanillin

General function
The main scent compound in vanilla, used as a fragrance note.

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.

PubChem
- fragrance
29 Sodium Benzoate
- preservative
30 Potassium Sorbate
- preservative

What the whole list adds up to

7 fragrances
6 amino acids
5 humectants
5 preservatives
3 solvents
3 named fragrance allergens
2 silicones
2 emollients
2 conditioning agents
2 conditioning agents
2 proteins
2 gums
2 pH adjusters
1 emulsifier

Ingredient list captured 2026-09-08. Formulas change — check the package in your hand when an ingredient matters to you.

Price · 3.38 oz

Seen at $23.99 1 store · checked Sep 8

Good value under $3 Under $0.87/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 $3 line; products that do this job typically go for about $5 at this size.

Show the price ladder

Price for 3.38 ozlower is better

Where we’ve seen it1 listing · 1 store

Target (target.com)
$23.99

3.38 oz · $7.10/oz

Sep 8Lowest per oz

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

3.38 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 $23.99 is the price we have observed for the 3.38 oz. We need three stores before we call a price commonly seen.
Good value under $3 comes from the 7 products we score as doing the same job as this one. A quarter of them cost less than $0.87/oz; at 3.38 oz that is $3. Under that line you are paying less than most of them.
About $5 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 3.38 oz.

Formula

Formula score

9 of 10

The formula carries what a leave-in is built around, and 2 products we score as close matches cost at least a quarter less per ounce. The difference is buying the label, not a different formula.

How the score is counted

2 products we score as doing the same job cost less per ounce
Costs more per ounce than 84% of the 477 leave-ins we’ve priced
Covers 5 of the 6 things a leave-in should do
Reviewers mention 2 things they like about how it performs

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 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.

Old SpiceLowest cost per oz Wavy Curly Leave-In Conditioner with Aloe & Avocado Oil $0.70/oz $6.40/oz less

Protein-free
Alcohol-free
Medium weight

· Close function

Function: Water-binding (humectants)
Oils and butters
Also: Drugstore tier
8.5 oz bottle

Compare

ORSClose function Relax & Restore Maintain Moisture Hair Balm $0.98/oz $6.12/oz less

Alcohol-free
Medium weight
Budget

Function: Water-binding (humectants)
Oils and butters
Also: Cruelty-free
Drugstore tier
8.5 oz bottle

Compare

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 person, not the lowest cost

Best user

People who want maximum slip — for real detangling slip and moisture that stays in

Biggest tradeoff

Less suited to anyone sensitive to fragrance, curly-method routines, or vegan and cruelty-free shopping

Best alternative if not

Old Spice Wavy Curly Leave-In Conditioner with Aloe & Avocado Oil, 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

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.

SupportedBacked by ingredients

Partly supportedSome supporting logic

Stated by brandNo clear evidence

Potential conflictFormula works against claim

Seals up to 90% of split ends with every use

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.

Reduces hair breakage by up to 95%

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.

Restores up to 95% of damaged hair

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.

Silicone-free absorbing texture that avoids heavy residue

A silicone appears in the ingredient list.

Dimethicone
Dimethiconol

Potential conflict

A silicone is on the label.

Tames frizz and provides light thermal defense during styling

Silicones or film formers smooth the cuticle, which is the usual mechanism.

Dimethicone
Dimethiconol
Hydroxyethylcellulose

Supported

Smoother strands, less frizz.

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.

Reviewers said the product visibly seals fraying ends so they look blunt rather than feathery, closely mimicking a fresh trim

general reviewers with split/damaged ends

Many reviewers praised how quickly the product absorbs, saying it does not leave a sticky residue on the hands

general reviewers

Some reviewers noted the effect is temporary and the appearance of split ends returns after the next wash

general reviewers

Reviewers with fine hair warned that using too much makes hair look piecey or oily

reviewers with fine hair

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.
2 sources consulted for this product (1 manufacturer or regulatory, 1 retailer, 0 editorial), last checked 2026-09-08.
Ingredient references are linked for 9 of 21 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 2026-09-08.

BC Bonacure Repair Rescue Sealed Ends+ Arginine

Is this right for you?

Read from the label, not the marketing

The ingredients that change a decision

What the whole list adds up to

Should you buy it?

What the brand says, against what the formula shows

What people report

More from Schwarzkopf Professional

How this page was made

Your personalized hair plan