2% Peptides Bonder rebuilds hair's molecular structure
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.
L'Oreal Professionnel
Serie Expert Absolut Repair Molecular Rinse-Off Serum
Mask / Weekly treatment, lean
- Mask / treatment
- serum
- Sulfate-free
- Moisture-rich
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Manufacturer page: sleekshop.com
Personal fit
Is this right for you?
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Factor
Your profile
Fit
Best for hair types
All types
Not in your profile
Moisture level
High
Not in your profile
Oils and butters
None
Not in your profile
Slip / detangling
High
Not in your profile
Weight on hair
Medium
Not in your profile
Fragrance
Prominent
Not in your profile
Protein
Minor
Not in your profile
Silicone / wax buildup
High
Not in your profile
Clarifying wash needed
Moderate
Not in your profile
Parabens / preservatives
None of these listed
Not in your profile
Show all 21 factors we check
The rest of what your plan weighs on this product.
Essential oils
None listed
Not in your profile
Fast-drying alcohol
None
Not in your profile
Vegan / cruelty-free
Not yet verified
Not in your profile
Animal-derived ingredients
Not yet verified
Not in your profile
Heavy humectants
Heavy
Not in your profile
Hard-water defence
High
Not in your profile
UV filter
None listed
Not in your profile
pH adjusted
Adjusted
Not in your profile
Ingredient list
17 ingredientsAbout average
Not in your profile
Price tier
Salon
Not in your profile
Where to buy it
SalonsOne channel
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.
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Your avoid-list
Upper-mid price for a treatment
$4.17/oz at 8.4 oz — more than 57% of the 347 masks and treatments , which mostly run $1.63–5.74/oz. The cost less.
Great for
Maximum slipfor hair that tangles the moment it is wet
Dry, thirsty hairhumectants and emollients both sit up front
Very dry hairno fast-drying alcohol in the list
Cuticle-smoothing pHa pH adjuster brings it to the acidic range hair prefers
A wide range of haira middle-of-the-range weight
Maybe skip if
this product carries a scent
Curly-method routinesthese silicones need a detergent to remove
Dry or very humid airwhere heavy humectants work against you
Tight budgetsit sits in the upper price tiers
Picking it up locallywe have it recorded in one channel only
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.
Oils and butters
None
No oils or butters in the list.
Weight on the hair
Medium
Middle of the range — noticeable on fine hair, light on coarse hair.
Protein
Minor
Protein appears, low enough to be a supporting ingredient.
Water-binding (humectants)
High
Humectants near the top — water-binding is a headline mechanism here.
Slip and detangling
High
Conditioning agents sit high in the list — this is a detangling formula.
Needs detergent to remove
Yes
Water-insoluble silicones or waxes: a detergent wash is what removes them.
Fragrance
Prominent
Fragrance sits in the first eight ingredients — a larger share of the formula.
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/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 — this is what makes it comb through | Detangles |
| Cetyl Alcohol | fatty alcohol | Thickens and conditions — not a drying alcohol | Softens |
| Glycerin | humectant | Pulls water into the hair | Moisturizes |
| Amodimethicone | silicone | Smooths the cuticle and adds shine | Buildup |
| FragranceParfum/Fragrance | fragrance | The scent | Fragrance |
| Cystine Bis-PG-Propyl Silanetriol | amino acid | A trace of amino acids | Protein |
| Chlorhexidine Digluconate | preservative | Keeps the product from spoiling | Stabilizes |
| Benzyl Alcohol | preservative | Keeps the product from spoiling | Stabilizes |
| Phenoxyethanol | preservative | Keeps the product from spoiling | Stabilizes |
What the list leaves out, and what it carriesThe list carries no sulfates or drying alcohols. Fragrance is on the label. Water-insoluble silicones — needs a detergent wash to remove. Hard-water chelators are present.
Full ingredient list (17)
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/Water/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
Cetearyl Alcohol
General function
A waxy fatty alcohol - nothing like drying alcohol. It gives conditioners their body and leaves a soft, smoothing film on the hair.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
PubChemMay suitDry, coarse, or high-porosity hairThe waxy solid that gives a conditioner its body. It deposits a soft lubricating layer, which is most of what makes hair feel smooth after rinsing.
May suitFrizz-prone, damaged, or high-friction hairDeposits with the cationic conditioners and helps them lie flat along the strand, which is where the detangling actually comes from.
DependsFine or easily flattened hairNear the top of a conditioner it is doing most of the conditioning, and most of the weighting, at the same time.
- fatty alcohol
- emollient
- thickener
-
3
Behentrimonium Chloride
General function
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.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
International Journal of Cosmetic ScienceMay suitDry, coarse, or high-porosity hairElectrokinetic 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.
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.
DependsBuild-up-sensitive routinesSubstantive by design. A routine with no detergent wash gives it nothing to leave with.
- conditioning agent
- cleanser
-
4
Cetyl Alcohol
General function
A fatty alcohol used to thicken creams and add slip. It softens rather than dries.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChemMay suitDry, coarse, or high-porosity hairThe waxy solid that gives a conditioner its body. It deposits a soft lubricating layer, which is most of what makes hair feel smooth after rinsing.
May suitFrizz-prone, damaged, or high-friction hairDeposits with the cationic conditioners and helps them lie flat along the strand, which is where the detangling actually comes from.
DependsFine or easily flattened hairNear the top of a conditioner it is doing most of the conditioning, and most of the weighting, at the same time.
- fatty alcohol
- emollient
- thickener
-
5
Glycerin
General function
A small water-loving molecule that draws moisture into the hair and holds it there. It is the most common softening ingredient in conditioners and leave-ins.
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
-
6
Amodimethicone
General function
A silicone modified to stick where hair is damaged, so it smooths selectively instead of coating everything. It resists rinsing more than plain dimethicone.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
International Journal of TrichologyMay 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
- ▾Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
7
Fragrance
· Parfum/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
-
8
Cystine Bis-PG-Propyl Silanetriol
General function
A cystine derivative modified to bind more firmly to the strand, used in strengthening 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.
May suitVery dry or highly damaged hairAmino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.
DependsProtein-sensitive hairThe lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
- amino acid
- protein
-
9
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 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 suitCurls or waves needing flexible holdGums thicken and set soft, which gives definition that bends rather than a rigid cast.
May suitFrizz-prone, damaged, or high-friction hairCationic conditioners bind to the negatively charged damaged cuticle, laying it flat and cutting the friction that causes combing breakage.
May suitMaximum-hold stylingA styling polymer dries into a film across the strands, which is what makes a shape hold instead of relax.
- conditioning agent
- polymer
- gum
-
10
Polyquaternium-6
General function
A conditioning polymer used for detangling and light hold.
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 suitCurls or waves needing flexible holdCationic polymers hold a curl loosely and stay soft, which is why they turn up in definition products rather than firm-hold ones.
May suitFrizz-prone, damaged, or high-friction hairA cationic polymer stays on the hair through rinsing, which is what keeps static and combing friction down after the wash.
May suitMaximum-hold stylingFilm formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
- film former
- polymer
- conditioning agent
-
11
Cetrimonium Chloride
General function
A quick-acting conditioning agent that reduces static and combing force. It also helps keep the formula stable.
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 suitFine or easily flattened hairThe C16 quat binds mostly by charge rather than by chain, so it deposits measurably less than the C22 ones. Less deposit is less conditioning and also less weight, which is usually the trade fine hair wants.
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.
DependsBuild-up-sensitive routinesSubstantive by design. A routine with no detergent wash gives it nothing to leave with.
- conditioning agent
- cleanser
-
12
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
-
13
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
-
14
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
-
15
Chlorhexidine Digluconate
- preservative
-
16
Benzyl Alcohol
- preservative
- solvent
-
17
Phenoxyethanol
- preservative
What the whole list adds up to
- 4 conditioning agents
- 3 preservatives
- 2 solvents
- 2 fatty alcohols
- 2 emollients
- 2 thickeners
- 2 cleansers
- 2 film formers
- 2 polymers
- 2 hard-water chelators
- 2 pH adjusters
- 1 humectant
- 1 silicone
- 1 conditioning agent
Ingredient list captured 2026-09-08. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 8.4 oz
Seen at
$35.03
Good value under
$15
Priced above the products that do the same job. Stores sell it above the $15 line; products that do this job typically go for about $27 at this size.
Show the price ladder
Where we’ve seen it1 listing · 1 store
-
Care to Beauty (caretobeauty.com)
$35.038.4 oz · $4.17/ozSep 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
- 8.4 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 $35.03 is the price we have observed for the 8.4 oz. We need three stores before we call a price commonly seen.
- Good value under $15 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $1.77/oz; at 8.4 oz that is $15. Under that line you are paying less than most of them.
- About $27 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 8.4 oz.
Formula
5
Formula score
5 of 10
Nothing separates this from the middle of the range for masks and treatments, on formula or on cost per ounce.
How the score is counted
- 4 products that do the same job cost less per ounce
- Costs more per ounce than 57% of the 347 masks and treatments we’ve priced
- No rich emollients in the formula
- Salon tier, sold at Salons
- Rich emollientsThe depth a treatment step is built around.3 pts
- Conditioning agents up frontWhat makes wet hair comb through.2 pts
- Protein or amino acidsThe strengthening side of a treatment.2 pts
- A humectantBinds water into the hair.1 pt
- A stated dwell timeThe brand says how long to leave it on.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.
OGXLowest cost per oz
Bond Protein Repair 1-Minute Treatment Mask
$1.57/oz $2.60/oz less
- Quick
- Medium weight
- Budget
- Differs
CHIClose function
RecoveryCare Moisturizing Hair Mask
$1.84/oz $2.33/oz less
- Alcohol-free
- Quick
- Medium weight
- Function
- Also
RuskClose function
2 Minute Masque
$3.00/oz $1.17/oz less
- Quick
- Vegan & CF
- Medium weight
- Function
- Also
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 personBest user
People who want maximum slip, looking for real detangling slip and moisture that stays in
Biggest tradeoff
Not ideal for anyone sensitive to fragrance, curly-method routines, or very dry or very humid climates
Best alternative if not
OGX Bond Protein Repair 1-Minute Treatment Mask — 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.
2
SupportedBacked by ingredients
0
Partly supportedSome supporting logic
2
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
5 Amino Acids strengthen and deeply nourish hair
Humectants or rich emollients sit in the first eight ingredients.
- Cetearyl Alcohol
- Cetyl Alcohol
- Glycerin
Supported
Helps hair feel hydrated.
Free from sulfates, parabens, silicones, alcohol
No sulfate detergents appear in the ingredient list.
—
Supported
Gentler on colour and coils.
Designed to replace a regular hair mask without wait time
This is a marketing claim; an ingredient list cannot speak to it.
—
Stated by brand
Can’t be confirmed from label.
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.
More from L'Oreal Professionnel
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.
- 3 sources consulted for this product (0 manufacturer or regulatory, 2 retailer, 1 editorial), last checked 2026-09-08.
- Ingredient references are linked for 9 of 13 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.