Ouidad

Unbreakable Bonds Weightless Bonding Oil

Finisher / Hair oil, glossing

Finisher
oil
Cruelty-free · PETA-listed

Size2 fl oz

Price$38seen at one store · 2 oz

Price / oz$19.00/ozat 2 oz

Where to buy1 store

Manufacturer page: ouidad.com

Personal fit

Is this right for you?

Factor Your profile Fit

Best for hair types Curly–Coily Not in your profile

Moisture level Moderate Not in your profile

Shine system High Not in your profile

Slip / detangling Some Not in your profile

Weight on hair Rich Not in your profile

Silicone / wax buildup High Not in your profile

Clarifying wash needed Moderate Not in your profile

Parabens / preservatives Not determined Not in your profile

Essential oils Not determined Not in your profile

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

Show all 18 factors we check

The rest of what your plan weighs on this product.

Animal-derived ingredients Not yet verified Not in your profile

Aerosol can Not determined Not in your profile

Needs heat to set Not determined Not in your profile

Heavy humectants Not determined Not in your profile

UV filter None listed Not in your profile

Ingredient list 26 ingredientsAbout average Not in your profile

Price tier Salon Not in your profile

Where to buy it Brand websiteOne 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.

Start your consultation

$49.00 once, for your consultation and hair profile. No subscription, no required purchases.

Same job for less elsewhere

$19.00/oz at 2 oz — more than 81% of the 175 hair oils , which mostly run $4.52–16.49/oz.

View alternatives

Great for

Coarse or dry hairthat absorbs everything you give it

Dull-looking haira recognised shine system is present

Maybe skip if

Oily scalp or fine hairthat gets weighed down

Stretching wash dayswaxes stay until a detergent wash removes them

Tight budgetsit sits in the upper price tiers

Picking it up locallywe have it recorded in one channel only

Whether a finisher this rich will read as shine or as grease depends on your strand thickness and oil rate — 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.

Shine system Oil blend

A silicone or oil blend does the shine work here.

Weight on the hair Rich

Heavy butters and waxes in the first eight ingredients.

Oils and butters Present, high in the list

Oils sit high in the list — a softening, coating formula.

Needs detergent to remove Yes

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

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
C15-19 Alkane	emollient	Softens and smooths the strand	Shine
Helianthus Annuus (Sunflower) Seed Oil	oil	The shine and softening system	Shine
Butyrospermum Parkii (Shea) Oil	oil	The shine and softening system	Shine
Crambe Abyssinica Seed Oil	oil	The shine and softening system	Shine
Hydrogenated Castor Oil/Sebacic Acid Copolymer	wax	Holds shape and adds weight	Buildup
Aleurites Moluccanus (Kukui) Seed OilAleurites Moluccana Seed Oil	oil	The shine and softening system	Shine
Bidens Pilosa Extract	—	—	Neutral
Camellia Japonica Seed Oil	oil	The shine and softening system	Shine

What the list leaves out, and what it carriesContains heavier butters.

Full ingredient list (26)

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 C15-19 Alkane

General function
A plant-derived light alkane used as a clean-feeling silicone alternative.

Leading ingredient
Listed in the first three ingredients, it is likely a structural part of this formula.

May suitFrizz-prone, damaged, or high-friction hair
Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
- emollient
- solvent
2 Helianthus Annuus (Sunflower) Seed Oil

General function
A light, widely used oil that softens without much weight.

Leading ingredient
Listed in the first three ingredients, it is likely a structural part of this formula.

May suitDry, coarse, or high-porosity hair
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.

May not suitFine or easily flattened hair
Near the top of a list an oil is weight before it is anything else, and fine hair shows that first at the roots.

International Journal of Trichology
- oil
- emollient
3 Butyrospermum Parkii (Shea) Oil

General function
The liquid fraction of shea, lighter than the butter but with the same softening effect.

Leading ingredient
Listed in the first three ingredients, it is likely a structural part of this formula.

May suitDry, coarse, or high-porosity hair
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.

May not suitFine or easily flattened hair
Near the top of a list an oil is weight before it is anything else, and fine hair shows that first at the roots.
- oil
- emollient
4 Crambe Abyssinica Seed Oil

General function
A light oil with very long fatty-acid chains, used as a plant alternative to silicone shine.

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

May suitDry, coarse, or high-porosity hair
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.

May not suitFine or easily flattened hair
Near the top of a list an oil is weight before it is anything else, and fine hair shows that first at the roots.
- oil
- emollient
5 Hydrogenated Castor Oil/Sebacic Acid Copolymer

General function
A castor-derived wax polymer that thickens balms and helps a style hold.

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
Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.

May suitMaximum-hold styling
A wax holds by staying solid on the strand, which gives grip and separation rather than a set film that cracks.

May not suitBuild-up-sensitive routines
Waxes do not dissolve in water. They need a detergent wash to come off, and they are the classic cause of a coated feel.
- wax
- film former
- emollient
6 Aleurites Moluccanus (Kukui) Seed Oil · Aleurites Moluccana Seed Oil

General function
Kukui nut oil - a light oil used for softness on fine textured hair.

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

May suitDry, coarse, or high-porosity hair
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.

May not suitFine or easily flattened hair
Near the top of a list an oil is weight before it is anything else, and fine hair shows that first at the roots.
- oil
- emollient
7 Bidens Pilosa Extract
8 Camellia Japonica Seed Oil

General function
Camellia oil, light and fast-absorbing, used for shine on fine hair.

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

May suitDry, coarse, or high-porosity hair
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.

May not suitFine or easily flattened hair
Near the top of a list an oil is weight before it is anything else, and fine hair shows that first at the roots.
- oil
- emollient
9 Carthumus Tinctorius (Safflower) Seed Oil
10 Caryocar Brasiliense Fruit Oil

General function
The oil pressed from Caryocar Brasiliense. How much weight a plant oil leaves depends on the hair it lands on; coarse hair tends to take more of it than fine hair.

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

May suitDry, coarse, or high-porosity hair
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
11 Cocos Nucifera (Coconut) Oil

General function
One of the few oils small enough to move into the strand, which is why it is used for pre-wash treatments. It can feel heavy or stiff on protein-sensitive hair.

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

May suitDry, coarse, or high-porosity hair
Because it penetrates rather than sits on top, it works on hair that loses water through a worn cuticle instead of only slowing evaporation from the surface the way a non-penetrating oil does.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.

May suitVery dry or highly damaged hair
The exception to the class read: lauric acid is small and linear enough to enter the shaft rather than only coat it, and in comparison testing coconut oil was the one that reduced protein loss from washing on both undamaged and damaged hair.

International Journal of Trichology
- oil
- emollient
12 Elaeis Guineensis (Palm) Oil

General function
The oil pressed from Palm (Elaeis Guineensis). It is one of the heavier plant oils — rich on coarse or dry hair, and enough to flatten fine hair.

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

May suitDry, coarse, or high-porosity hair
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
13 Gardenia Taitensis Flower Extract
- botanical extract
14 Gossypium Herbaceum (Cotton) Seed Oil
15 Linum Usitatissimum (Linseed) Seed Oil

General function
Flaxseed oil, used for softness; the seed extract is used instead for natural hold.

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

May suitDry, coarse, or high-porosity hair
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
16 Opuntia Vulgaris Extract
17 Orbignya Oleifera (Babassu) Seed Oil · Orbignya Oleifera Seed Oil

General function
Babassu oil - solid at cool temperatures, lighter than coconut oil in feel.

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

May suitDry, coarse, or high-porosity hair
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
18 Persea Gratissima (Avocado) Oil

General function
A rich oil used in masks and heavier creams for softness on coarse or dry hair.

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

May suitDry, coarse, or high-porosity hair
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
19 Ricinus Communis (Castor) Seed Oil

General function
A thick, tacky oil used for sealing ends and for slick, held-down styles.

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

May suitDry, coarse, or high-porosity hair
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.

May suitFrizz-prone, damaged, or high-friction hair
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
20 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.

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

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.

PubChem
- emollient
- conditioning agent
▾Below about this point, order stops being meaningful — these are typically used at 1% or less.
21 Ascorbyl Palmitate
- antioxidant
22 Tocopherol
- antioxidant
- vitamin
23 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
24 Glyceryl Ricinoleate

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 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
A light emollient: it softens the surface with noticeably less weight than an oil or a butter.

May suitFrizz-prone, damaged, or high-friction hair
Spreads thin and lowers friction between strands without the heaviness of a fixed oil.
- light ester
- emollient
25 Propanediol

General function
A corn-derived humectant and solvent, often chosen as a lighter-feeling alternative to propylene glycol.

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
- humectant
- solvent
26 Tetrahexyldecyl Ascorbate

What the whole list adds up to

16 emollients
12 oils
2 solvents
2 antioxidants
1 wax
1 film former
1 botanical extract
1 conditioning agent
1 vitamin
1 pH adjuster
1 hard-water chelator
1 light ester
1 humectant

Ingredient list captured 2026-09-14. Formulas change — check the package in your hand when an ingredient matters to you.

Price · 2 oz

Seen at $38 1 store · checked Sep 14

Good value under $6 Under $2.79/oz it costs less than three-quarters of the 8 products we score as doing the same job

Priced above the products that do the same job. Stores sell it above the $6 line; products that do this job typically go for about $19 at this size.

Show the price ladder

Price for 2 ozlower is better

Where we’ve seen it1 listing · 1 store

Ouidad (ouidad.com)
$38.00

2 oz · $19.00/oz

Sep 14Lowest 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

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.
Seen at $38 is the price we have observed for the 2 oz. We need three stores before we call a price commonly seen.
Good value under $6 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $2.79/oz; at 2 oz that is $6. Under that line you are paying less than most of them.
About $19 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 2 oz.

Formula

Formula score

8 of 10

The formula carries what a hair oil is built around, and 3 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

3 products we score as doing the same job cost less per ounce
Costs more per ounce than 81% of the 175 hair oils we’ve priced
Covers 5 of the 6 things a hair oil should do
Salon tier, sold at Brand website

A shine systemThe silicone, oil, or ester that produces gloss.3 pts
A weightless carrierDelivers the shine without leaving grease.2 pts
Oils or butters in the working zoneSoftens the strand rather than just coating it.2 pts
An antioxidantKeeps the oils in the bottle from going off.1 pt
No drying alcohol in the first threeFast drying without leading on alcohol.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.

Uncle Funky's DaughterClosest function Shining Star Hair and Scalp Elixir $3.05/oz $15.95/oz less

Fragrance-free
Protein-free
Rich

Function: Water-binding (humectants)
Also: Masstige tier
6 oz bottle

Compare

BriogeoClose function Style + Treat Supreme Shine Strengthening Oil $9.33/oz $9.67/oz less

Protein-free
Rich
Silicone-free

Function: Water-binding (humectants)
Also: Sold at specialty beauty counters

Compare

CantuLowest cost per oz Shea Butter Oil Sheen Spray $0.60/oz $18.40/oz less

Protein-free
Rich
Silicone-free

· Close function

Function: Oils and butters
UV filter
Also: Value tier
10 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?

Hard to justify at this price

Best user

Coarse, dry, or high-porosity hair — for a formula with real substance and shine

Biggest tradeoff

Not ideal for oily scalps and fine hair, anyone stretching time between washes, or people shopping on a budget

Best alternative if not

Consider Uncle Funky's Daughter Shining Star Hair and Scalp Elixir, 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

silicone-free

We have not recorded the silicone status of this formula.

—

Stated by brand

Can’t be confirmed from label.

dermatologist-tested

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.

bond-building technology

No protein or bond ingredient appears in the list.

—

Stated by brand

Can’t be confirmed from label.

lightweight

Heavy emollients sit high in the list.

Hydrogenated Castor Oil/Sebacic Acid Copolymer

Potential conflict

Expect it to sit on the strand.

does not weigh hair down

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.

Reviewers

What people report

Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings.

Several reviewers note a little product goes a long way, with just one pump enough per use.

Many reviewers say it is lightweight and non-greasy, adding shine and softness without weighing curls down.

Some reviewers with fine hair found it too heavy, leaving hair looking greasy the day after application.

Several reviewers specifically value that it is fragrance-free and does not irritate sensitive skin.

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.
5 sources consulted for this product (0 manufacturer or regulatory, 0 retailer, 5 editorial), last checked 2026-09-14.
Ingredient references are linked for 5 of 18 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 2026-09-15.

Unbreakable Bonds Weightless Bonding Oil

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 Ouidad

How this page was made

Your personalized hair plan