Restore your hair to a natural, clean + shiny state
The formula carries a recognised shine system — silicone, oil, or light ester.
- Silicone Quaternium-8
Supported
Reflects light for visible shine.
R+Co
LOST TREASURE Apple Cider Vinegar Cleansing Rinse
Mask / Light treatment, lightly emollient
- Mask / treatment
- Sulfate-free
- Protein-free
- Lightweight
- Vegan · label states
- Cruelty-free · label states
Size6 OZ
Price$34seen at one store · 6 oz
Price / oz$5.67/ozat 6 oz
Where to buy4 stores · $34.00–34.00
Add it to your products. We’ll tell you if it’s ever recalled.
Scent:
Notes: crisp amber, eucalyptus, green, sicilian lemon, tangerine, tree moss.
“Relative Paradise: Sicilian Lemon, Tangerine, Eucalyptus, Green Tea, Tree Moss, Crisp Amber” (Brand page)
Strength: Strong
Manufacturer page: randco.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 22 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.
Factor
Your profile
Fit
Best for hair types
All types
Not in your profile
Moisture level
High
Not in your profile
Oils and butters
Low
Not in your profile
Slip / detangling
Moderate
Not in your profile
Weight on hair
Light
Not in your profile
Fragrance
Prominent
Not in your profile
Protein
None
Not in your profile
Silicone / wax buildup
High
Not in your profile
Clarifying wash needed
Moderate
Not in your profile
Scent
Citrus · Mint & herbalStrong strength
Not in your profile
Show all 22 factors we check
The rest of what your plan weighs on this product.
Parabens / preservatives
None of these listed
Not in your profile
Essential oils
None listed
Not in your profile
Fast-drying alcohol
None
Not in your profile
Vegan / cruelty-free
Vegan · label statesCruelty-free · label states
Not in your profile
Animal-derived ingredients
Vegan · label states
Not in your profile
Heavy humectants
Heavy
Not in your profile
Hard-water defence
None
Not in your profile
UV filter
Present
Not in your profile
pH adjusted
No adjuster 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 website · Salons
Not in your profile
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
Same job for less elsewhere
$5.67/oz at 6 oz, more than 75% of the 576 masks and treatments , which mostly run $1.80–5.62/oz.
Great for
Protein-sensitive hairthat stiffens when protein is added
Fine hairthat flattens under most products
Very dry hairno fast-drying alcohol in the list
Sun and colour fadea UV filter is in the list
Vegan and cruelty-freeour researched record has it as both
Maybe skip if
this product has a strong scent
Curly-method routinesthese silicones need a detergent to remove
Hair that needs proteinthere is none in this list
Dry or very humid airwhere heavy humectants work against you
Coarse, very dry hairthis is a light formula for its category
Tight budgetsit sits in the upper price tiers
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
Present, lower down
Oils are present, but low enough to be a finishing touch.
Weight on the hair
Light
Water-first and light: unlikely to flatten fine hair.
Protein
None
No protein or amino acids in the list.
Water-binding (humectants)
High
Humectants near the top: binding water is one of its main jobs.
Slip and detangling
Moderate
Conditioning agents are present, lower in the list.
Needs detergent to remove
Yes
Water-insoluble silicones or waxes: a detergent wash is what removes them.
Fragrance
Prominent
Fragrance is in the first eight ingredients, so it makes up 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. 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 (Aqua/Eau) | solvent | The base everything else is dissolved in | Neutral |
| Pyrus Malus (Apple) Fruit Extract | botanical extract | A plant extract, there as much for marketing as for function | Neutral |
| Coco-Glucoside | nonionic cleanser | — | Cleanses |
| Lauryl Glucoside | nonionic cleanser | — | Cleanses |
| Aloe Barbadensis Leaf Juice | humectant | Pulls water into the hair | Moisturizes |
| Polysorbate 20 | solubilizer | Keeps oils dissolved in water | Stabilizes |
| Glycerin | humectant | Pulls water into the hair | Moisturizes |
| FragranceFragrance (Parfum) | fragrance | The scent | Fragrance |
| Silicone Quaternium-8 | silicone | A little smoothing and shine | Buildup |
| Limonene | fragrance | The scent | Fragrance |
| Linalool | fragrance | The scent | Fragrance |
What the list leaves out, and what it carriesNo sulfates or drying alcohols. Protein-free: this is built for moisture rather than for strengthening. Contains fragrance. The silicones here need a detergent wash to come off.
Full ingredient list (26)
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 (Aqua/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
Pyrus Malus (Apple) Fruit Extract
General function
An apple extract used at low levels; it contributes a little natural acid and label appeal.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
- botanical extract
-
3
Coco-Glucoside
General function
A sugar-derived, low-foaming cleanser used in gentle and curly-method shampoos.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
PubChemMay suitDry, coarse, or high-porosity hairMild cleansing leaves more surface lubrication in place on hair that dries out quickly.
May suitVery dry or highly damaged hairA sugar-derived non-ionic detergent, among the gentlest in use. It cleanses with little foam of its own and little sebum removal.
May not suitBuild-up-sensitive routinesGentle cleansing leaves water-insoluble deposits largely in place; they come off with a stronger wash, not this one.
- nonionic cleanser
- cleanser
-
4
Lauryl Glucoside
General function
A mild sugar-derived cleanser with a soft, low lather.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChemMay suitDry, coarse, or high-porosity hairMild cleansing leaves more surface lubrication in place on hair that dries out quickly.
May suitVery dry or highly damaged hairA sugar-derived non-ionic detergent, among the gentlest in use. It cleanses with little foam of its own and little sebum removal.
May not suitBuild-up-sensitive routinesGentle cleansing leaves water-insoluble deposits largely in place; they come off with a stronger wash, not this one.
- nonionic cleanser
- cleanser
-
5
Aloe Barbadensis Leaf Juice
General function
Aloe gel, used for light moisture and slip. High in the list it also contributes a little natural hold.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May suitCurls or waves needing flexible holdGums thicken and set soft, which gives definition that bends rather than a rigid cast.
May suitFine or easily flattened hairHydration with no oil attached, so it adds very little weight even high on a list.
May suitVery dry or highly damaged hairAloe is mostly water carrying sugars that bind more of it, which is why it turns up as the base of moisture-first formulas.
- humectant
- botanical extract
- gum
-
6
Polysorbate 20
General function
Keeps fragrance and oils dissolved in a watery formula so it stays clear.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- solubilizer
- emulsifier
-
7
Glycerin
General function
Glycerin, also called glycerol, attracts moisture and mixes completely with water.
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
- ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
-
8
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
-
9
Xanthan Gum
General function
A fermented sugar gum that thickens water-based formulas and adds soft, natural 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 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
-
10
Phenoxyethanol
- preservative
-
11
Caprylyl Glycol
General function
A gentle preservative helper that also holds a little moisture.
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 suitVery dry or highly damaged hairHumectants bind water into the strand, and water — not oil — is what makes dry hair flexible instead of brittle.
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.
- preservative
- humectant
-
12
Sodium Methoxy Peg-16 Maleate/Styrene Sulfonate Copolymer
- film former
- polymer
-
13
Silicone Quaternium-8
General function
A conditioning silicone that clings to damaged areas for smoothing and heat protection.
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 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
- film former
- conditioning agent
-
14
Benzophenone-4
General function
A UV filter added to keep the product itself, and dyed hair, from fading in light.
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 suitGray, silver, or brass-prone hairSunlight oxidises hair pigment, and on gray, silver or lightened hair that shows up as yellowing. A UV filter on the label absorbs some of the light that drives it.
- UV filter
-
15
Potassium Sorbate
- preservative
-
16
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
-
17
Hexylene Glycol
General function
A solvent that keeps other ingredients dissolved and helps preservatives work.
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.
- solvent
- humectant
-
18
Rapeseedamidopropyl Ethyldimonium Ethosulfate
- conditioning agent
-
19
Dipropylene Glycol
General function
A light humectant and solvent that helps fragrance and extracts dissolve evenly.
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
- 20 Quaternium-96
-
21
Geranium Maculatum Extract
- botanical extract
-
22
Polyacrylamidopropyltrimonium Chloride
General function
A positively charged conditioning agent. Damaged hair carries a negative charge, so it deposits where the damage is and makes wet hair comb through.
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 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.
DependsBuild-up-sensitive routinesSubstantive by design. A routine with no detergent wash gives it nothing to leave with.
- conditioning agent
-
23
Calophyllum Inophyllum Seed Oil
General function
The oil pressed from Calophyllum Inophyllum. 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.
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 suitDry, coarse, or high-porosity hairCoats 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 hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
-
24
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
-
25
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
-
26
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
- 6 humectants
- 4 solvents
- 4 conditioning agents
- 3 botanical extracts
- 3 cleansers
- 3 fragrances
- 3 film formers
- 3 preservatives
- 2 nonionic cleansers
- 2 gums
- 2 named fragrance allergens
- 1 solubilizer
- 1 emulsifier
- 1 declared fragrance
Ingredient list captured 2026-10-17. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 6 oz
Seen at
$34
Good value under
$12
Priced above the products that do the same job. Stores sell it above the $12 line; products that do this job typically go for about $13 at this size.
Show the price ladder
Where we’ve seen it4 listings · 4 stores
-
R+Co (brand site)
$34.006 oz · $5.67/ozOct 7Lowest per oz
-
Beautylish
$34.006 oz · $5.67/ozOct 17
-
Macy's
$34.006 oz · $5.67/ozOct 17
-
R+Co (randco.com)
$34.006 oz · $5.67/ozOct 17
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
- 6 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 $34 is the price we have observed for the 6 oz. We need three stores before we call a price commonly seen.
- Good value under $12 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $1.93/oz; at 6 oz that is $12. Under that line you are paying less than most of them.
- About $13 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 6 oz.
Formula
1
Formula score
1 of 10
It costs more per ounce than 75% of the 576 masks and treatments we’ve priced, the formula leaves out rich emollients, and 5 close matches sell for at least a quarter less per ounce.
How the score is counted
- 5 products we score as doing the same job cost less per ounce
- Costs more per ounce than 75% of the 576 masks and treatments we’ve priced
- No rich emollients in the formula
- No conditioning agents up front either
- 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 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.
The DouxClosest function
THAT'S DEEP 5-Minute Deep Conditioner
$1.43/oz $4.24/oz less
- Protein-free
- Lightweight
- Alcohol-free
- Function
- Also
LUSETALowest cost per oz
Coconut Milk Hair Mask
$0.24/oz $5.43/oz less
· Close function
- 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?
Similar results available for lessBest user
Hair that stiffens on protein, looking for a protein-free formula and something that will not weigh hair down
Biggest tradeoff
Worth skipping for anyone sensitive to fragrance, curly-method routines, 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.
Claims check
What the brand says, and what the formula shows
Claims are quoted from the brand. We mark a claim supported, partly supported or conflicting only when the ingredient list speaks to it. Everything else stays "stated by the brand". That isn’t a criticism: most claims can’t be checked from a label.
1
SupportedBacked by ingredients
0
Partly supportedSome supporting logic
1
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
cleanse without removing oils or color
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 at the marketing. If the list doesn't speak to a claim, we don't assume.
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.
Reviewers say it leaves the scalp feeling clean and refreshed and removes product, chlorine or hard-water buildup without stripping.
swimmers, hard-water households and heavy product usersSeveral reviewers with itchy, dry or rash-prone scalps say the cooling, soothing rinse eased those symptoms.
users with dry or irritated scalpsMany reviewers report soft, shiny hair after use without added weight.
users commenting on hair feel after rinsingReviewers use it between shampoos or as a co-wash or second wash, and some note the vinegar smell lingers and the bottle is small.
frequent users noting routine fit and drawbacksMore from R+Co
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.
- 5 sources consulted for this product (1 manufacturer or regulatory, 1 retailer, 3 editorial), last checked 2026-10-17.
- Ingredient references are linked for 11 of 17 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 2026-10-17.
