Sizes & containers
Full 4 oz · $14.79 at one store · UPC 859764003563
Perfect hair Day™ 5-in-1 Styling Treatment
Leave-in / Everyday leave-in, medium-weight
- Leave-in
- Sulfate-free
- Silicone-free
- Protein-free
- Cruelty-free · PETA-listed
Add it to your products. We’ll tell you if it’s ever recalled.
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Manufacturer page: livingproof.com
Personal fit
Is this right for you?
Complete the consultation to see how well this product fits your hair and your goals. With 6,000+ products in our library, we can match you to the right ones.
- About 20 minutes, and your answers save as you go.
- Every product matched against your hair across the 21 factors we check.
- A personalized routine built around your schedule, styling habits, and local weather.
- Find products that do the same job at a lower cost.
- Your goals, scalp, damage history, water, budget, and scent preferences all shape your plan.
$49 with 60 days of follow-up questions and plan updates
$99 with 12 months. Pay once; the year renews only if you choose.
Show all 21 factors we check
The rest of what your plan weighs on this product.
The consultation builds your hair profile, checks every factor in this table against it, and tells you where this product fits or what to use instead.
Start your consultation$49 once, with 60 days of follow-up questions and plan updates. Nothing renews, and you never have to buy a product.
Your avoid-list
Upper-mid price for a leave-in
$3.70/oz at 4 oz, more than 60% of the 749 leave-ins , which mostly run $1.31–5.50/oz. The cost less.
Great for
Maybe skip if
What the formula actually does
Read from the label, not the marketing
Each row says where it comes from: F means we derived it from this product’s own ingredient list, S means it is a claim the brand makes that the formula neither confirms nor contradicts.
Middle of the range: noticeable on fine hair, light on coarse hair.
Conditioning agents sit high in the list, so this is a detangling formula.
Humectants near the top: binding water is one of its main jobs.
Oils are present, but low enough to be a finishing touch.
No protein or amino acids in the list.
Water-insoluble silicones or waxes: a detergent wash is what removes them.
Fragrance is listed; it sits below the working ingredients.
Ingredients that matter
The ingredients that change a decision
The workhorse ingredients, plus anything lower down that changes a decision. The chips name what an ingredient does. They are not safety scores, and no ingredient here is rated good or bad on its own.
| Ingredient | What it does | Why it matters | Chip |
|---|---|---|---|
| WaterWater/Eau/Aqua | solvent | The base everything else is dissolved in | Neutral |
| Myristyl Alcohol | fatty alcohol | Thickens and conditions (not a drying alcohol) | Softens |
| C13-15 Alkane | emollient | Softens and smooths the strand | Softens |
| Behentrimonium Methosulfate | conditioning agent | Conditions and softens so hair combs through | Detangles |
| Butylene Glycol | humectant | Pulls water into the hair | Moisturizes |
| Maltodextrin/VP Copolymer | film former | Lays down the film that holds a shape | Holds |
| Behenyl/Stearyl Aminopropanediol Esters | humectant | Pulls water into the hair | Moisturizes |
| Polyalkylaminoester-1 | film former | Lays down the film that holds a shape | Holds |
| Myrica Pubescens Fruit Wax | film former | A supporting film former | Buildup |
| FragranceFragrance/Parfum | fragrance | The scent | Fragrance |
| Citronellol | fragrance | The scent | Fragrance |
| Limonene | fragrance | The scent | Fragrance |
Full ingredient list (29)
In the US, ingredients above 1% are listed from most to least. Below 1% they can appear in any order. Each note keeps three things apart: what the ingredient generally does, its role in this type of product, and what its position can tell you.
-
1
Water
· Water/Eau/Aqua
General function
The base of almost every rinse-off and cream hair product. It carries everything else and is normally the first ingredient on the label.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
- solvent
-
2
Myristyl Alcohol
General function
A fatty alcohol used to build texture in creams and add a light smoothing layer.
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
-
3
C13-15 Alkane
General function
A plant-derived light alkane used as a clean-feeling replacement for silicone or mineral oil.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May suitFrizz-prone, damaged, or high-friction hairEmollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
- emollient
- solvent
-
4
Behentrimonium Methosulfate
General function
A mild cationic conditioner known for heavy detangling with a light rinse-out feel. Common in curly-hair conditioners.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
International Journal of Cosmetic ScienceMay suitDry, coarse, or high-porosity hairA C22 conditioning quat, the chain length that deposits most heavily in electrokinetic testing. It is the slip coarse or porous hair usually needs, delivered by chain length rather than by charge alone.
May suitFrizz-prone, damaged, or high-friction hairA cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
May suitVery dry or highly damaged hairThe class that does the detangling in a conditioner. It deposits lubrication where the cuticle is worn.
- conditioning agent
- emulsifier
-
5
Butylene Glycol
General function
A light humectant and carrier that helps extracts dissolve.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChemMay suitFine or easily flattened hairLight and water-binding rather than oily, so it adds less weight than oils or butters do.
May suitVery dry or highly damaged hairA small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.
DependsClimate-sensitive or frizz-prone hairA humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
- humectant
- solvent
-
6
Maltodextrin/VP Copolymer
General function
A starch-based hold polymer that sets softly and washes out with water.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May suitClimate-sensitive or frizz-prone hairA set polymer film is a physical barrier to humidity, so a style keeps its shape longer in damp conditions.
May suitMaximum-hold stylingSynthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.
DependsBuild-up-sensitive routinesSome acrylate copolymers rinse with water and some need a detergent; the label alone does not say which one a formula used.
- film former
- polymer
-
7
Behenyl/Stearyl Aminopropanediol Esters
- humectant
-
8
Polyalkylaminoester-1
- film former
- polymer
-
9
Oleyl Alcohol
General function
A liquid fatty alcohol that adds slip and helps other oils spread.
Secondary ingredientLower in the ordered portion of the list, it is more likely playing a supporting role than defining the 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.
- fatty alcohol
- emollient
-
10
Hydroxyethylcellulose
General function
A cellulose thickener that gives gels and conditioners their body and adds a soft, flexible film.
Secondary ingredientLower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
PubChemMay suitCurls or waves needing flexible holdA 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 hairA soft film binds neighbouring strands together, which is most of what helps flyaways lie down.
May not suitMaximum-hold stylingGum films stay soft. A style that needs firm fixation usually wants a synthetic polymer doing the holding.
- gum
- thickener
- film former
-
11
Myrica Pubescens Fruit Wax
- film former
- thickener
- wax
-
12
Astrocaryum Murumuru Seed Butter
General function
Murumuru butter - very rich, used for sealing coarse or coily hair.
Secondary ingredientLower 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 hairCoarse, porous hair loses water quickly and can carry the weight; a butter slows that loss more than a thin oil does.
May suitFrizz-prone, damaged, or high-friction hairEmollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
May suitVery dry or highly damaged hairA solid fat melts onto the strand at body temperature and stays there, which is the heaviest surface moisture-holding a formula can offer.
- butter
- emollient
-
13
Polyquaternium-55
General function
A conditioning hold polymer used where flexibility and shine matter more than stiffness.
Secondary ingredientLower 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 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.
- conditioning agent
- film former
- polymer
-
14
Lauryl Methyl Gluceth-10 Hydroxypropyldimonium Chloride
- conditioning agent
-
15
Ppg-3 Benzyl Ether Ethylhexanoate
- emulsifier
-
16
Ppg-2 Myristyl Ether Propionate
- emulsifier
-
17
Cetyl Alcohol
General function
A fatty alcohol used to thicken creams and add slip. It softens rather than dries.
Secondary ingredientLower in the ordered portion of the list, it is more likely playing a supporting role than defining the 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.
- fatty alcohol
- emollient
- thickener
-
18
Oleth-10
- emulsifier
- solubilizer
-
19
Steareth-2
- emulsifier
-
20
Steareth-10
- emulsifier
- ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
-
21
Fragrance
· 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 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
-
22
Caprylic Acid
- preservative
- emulsifier
-
23
Lauric Acid
- emulsifier
-
24
Potassium Sorbate
- preservative
-
25
Propanediol
General function
A corn-derived humectant and solvent, often chosen as a lighter-feeling alternative to propylene glycol.
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 suitFine or easily flattened hairLight and water-binding rather than oily, so it adds less weight than oils or butters do.
May suitVery dry or highly damaged hairA small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.
DependsClimate-sensitive or frizz-prone hairA humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
- humectant
- solvent
-
26
Citronellol
General function
A rose-like fragrance component named separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne 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
-
27
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 zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne 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
-
28
Citral
General function
A lemon-scented fragrance component listed separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne 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
-
29
Linalool
General function
A floral fragrance component listed separately as a recognised contact allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne 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
What the whole list adds up to
- 8 emulsifiers
- 5 emollients
- 5 film formers
- 5 fragrances
- 4 solvents
- 4 named fragrance allergens
- 3 fatty alcohols
- 3 conditioning agents
- 3 humectants
- 3 polymers
- 3 thickeners
- 2 preservatives
- 1 gum
- 1 wax
Ingredient list captured 2026-10-07. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 4 oz
Priced above the products that do the same job. Stores sell it above the $8 line; products that do this job typically go for about $14 at this size.
Sizes
The 4 oz costs 61% less per ounce than the 2 oz.
Show the price ladder
Where we’ve seen it2 listings · 2 stores
4 ozusual store sizeBest per ounce
-
Ferebe
$14.794 oz · $3.70/ozOct 8Lowest per oz
2 oz
-
Living Proof (brand site)
$19.002 oz · $9.50/ozOct 7Lowest 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. and 1 listing we don’t count, from grey-market or unverified sellers.
How we work this out
- 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 $14.79 is the price we have observed for the 4 oz. We need three stores before we call a price commonly seen.
- Good value under $8 comes from the 6 products we score as doing the same job as this one. A quarter of them cost less than $2.11/oz; at 4 oz that is $8. Under that line you are paying less than most of them.
- Each size is guarded on its own, so a multipack or a marketplace listing at one size cannot move another.
- About $14 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 4 oz.
Formula
The formula carries the systems a leave-in is built around, and it sits in the middle of the range for leave-ins per ounce.
How the score is counted
- 3 products we score as doing the same job cost less per ounce
- Costs more per ounce than 60% of the 749 leave-ins we’ve priced
- Covers 5 of the 6 things a leave-in should do
- Reviewers mention 3 recurring complaints
- 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 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.
- Protein-free
- Curly method
- Lightweight
- Function
- Also
- Curly method
- Silicone-free
- Rinses clean
- Function
- Also
- Fragrance-free
- Curly method
- Silicone-free
- Function
- Also
See more alternatives in the product library
These products do a similar job. We haven’t matched them to you. Find the one that fits your hair, routine and budget
Final decision
Should you buy it?
A solid pick for the hair it suitsHair that stiffens on protein, for a protein-free formula and real detangling slip
Worth skipping for anyone sensitive to fragrance, anyone stretching time between washes, or soft, over-stretchy hair that needs protein
We do not sell products or take placement fees. This page states what the formula and the prices show; the consultation is what matches it to a person.
Reviewers
What people report
Themes that come up again and again in sourced reviews, written by our researchers in their own words. We don’t store or scrape star ratings.
Several reviewers say it tames frizz and fly-aways while leaving hair soft and smooth.
Reviewers with wavy, curly or colored hairSome reviewers say the product made no visible difference and did not help softness, shine or frizz.
Reviewers across hair typesSome reviewers feel the small bottle is overpriced for the amount of product it holds.
Reviewers across hair typesSome reviewers say the product feels heavy and leaves hair oily or greasy.
Reviewers across hair typesReviewers disagree about the scent, with some enjoying it and others finding the odor unpleasant.
Reviewers across hair typesMore from Living Proof
How this page was made
- Everything above comes from our researched product record: identity, the ingredient list as printed, the brand's own claims, dated prices and review themes our researchers wrote in their own words. No part of this page is written by hand for one product.
- The value band is a fixed label over two stored numbers: this product’s cost per ounce as a percentile of every product of this type we have priced, each at the size it is most often sold in, and how many products we score as doing the same job cost at least a quarter less per ounce.
- Both scores out of ten are defined on this page. The formula score is completeness for the job, computed from a fixed per-format checklist shown beneath the gauge; the price score is cost per ounce against every product of this type we have priced.
- The "Is this right for you?" panel reads only your own consultation answers, and it applies exactly the filters our recommendation engine applies. It is computed when you load the page and is never stored on it.
- 3 sources consulted for this product (0 manufacturer or regulatory, 1 retailer, 2 editorial), last checked 2026-10-31.
- Ingredient references are linked for 11 of 16 product-aware annotations on this page. Fit notes are general formulation guidance. They aren’t a verdict on the finished product or on you.
- We haven’t tested this product in a lab, and we don’t physically test your hair. Formula readings come from the ingredient list. Claims about how it behaves are labelled as the brand's.
- Ingredient order tells you relative amount only above roughly 1%. Prices are what we saw on the dates shown and can change.
- Ingredient names link to our ingredient library, where each entry shows what it does, which product types use it, and where it usually sits on a label across everything we have researched.
- This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
- Formula readings: derivation v23. Record last updated 2026-10-08.
