Curlsmith

Hydro Style Flexi Defining Curl Gel - 8.0 oz

Styler / Gel, medium-hold

Styler
gel
jelly
Sulfate-free
Silicone-free
Protein-free
Vegan · brand states

Size8 fl oz

Price$28seen at one store · 8 oz

Price / oz$3.50/ozat 8 oz

Where to buy1 store · $28.00–28.00

Scent:

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

Manufacturer page: curlsmith.com

Personal fit

Is this right for you?

Factor Your profile Fit

Best for hair types Wavy–Coily Not in your profile

Moisture level High Not in your profile

Hold (as stated) Medium Not in your profile

Slip / detangling Little Not in your profile

Weight on hair Light Not in your profile

Fragrance Present Not in your profile

Protein None Not in your profile

Silicone / wax buildup None Not in your profile

Clarifying wash needed Low Not in your profile

Parabens / preservatives None of these listed Not in your profile

Show all 23 factors we check

The rest of what your plan weighs on this product.

Essential oils Present Not in your profile

Fast-drying alcohol None Not in your profile

Vegan / cruelty-free Vegan · brand states Not in your profile

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

Aerosol can Pump or tube Not in your profile

Needs heat to set Air-sets Not in your profile

Humidity resistance High Not in your profile

Heavy humectants Not heavy Not in your profile

Hard-water defence High Not in your profile

UV filter None listed Not in your profile

Ingredient list 27 ingredientsAbout average Not in your profile

Price tier Salon Not in your profile

Where to buy it Ulta · Brand website 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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Upper-mid price for a gel

$3.50/oz at 8 oz — more than 71% of the 155 gels , which mostly run $1.19–3.51/oz. The cost less.

Price and stores

Great for

Protein-sensitive hairthat stiffens when protein is added

Curly-method routinesno sulfates and no water-insoluble silicones

Curl definitionfilm formers hold a clump together

Fine hairthat flattens under most products

Silicone-free routinesno silicones appear in the list

Stretching wash daysnothing here needs a detergent to remove

Maybe skip if

this product carries a scent

Anyone who dislikes a castthe film formers here can set firm

Tight budgetsit sits in the upper price tiers

Whether this hold level is right for you depends on your density, porosity, and how long your style has to last — 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.

Hold (as stated) Medium

A medium hold, as stated by the brand.

Hold system Synthetic polymer

Synthetic hold polymers — the firmest of the hold systems.

Cast risk Likely

Film formers without much softening them — expect a cast to scrunch out.

Weight on the hair Light

Water-first and light: unlikely to flatten fine hair.

Humidity resistance Claimed

The brand claims humidity resistance; the ingredient list cannot confirm it.

Oil absorption None

No absorbent powders or starches.

Oils and butters None

No oils or butters in the list.

Fast-drying alcohol None

No fast-drying alcohol in the list.

Needs detergent to remove No

Nothing here needs a detergent wash to remove.

Fragrance Present

Fragrance is listed; it sits below the working ingredients.

from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.

Ingredients that matter

The ingredients that change a decision

The workhorse ingredients plus anything lower down that changes a decision. These chips name what an ingredient does — they are not safety scores, and no ingredient here is rated good or bad on its own.

Ingredient	What it does	Why it matters	Chip
Water	solvent	The base everything else is dissolved in	Neutral
PVP	film former	Lays down the film that holds a shape	Holds
PEG-40 Hydrogenated Castor Oil	solubilizer	Keeps oils dissolved in water	Stabilizes
Panthenol	humectant	Pulls water into the hair	Detangles
Camellia Sinensis (Green Tea) Leaf ExtractCamellia Sinensis Leaf Extract	botanical extract	A trace plant extract	Stabilizes
Lavandula Angustifolia Flower Extract	botanical extract	A trace plant extract	Neutral
Thymus Vulgaris Leaf Extract	botanical extract	A trace plant extract	Neutral
Thuja Occidentalis Leaf Extract	botanical extract	A trace plant extract	Neutral
FragranceParfum	fragrance	The scent	Fragrance
Linalool	fragrance	The scent	Fragrance
Citronellol	fragrance	The scent	Fragrance
Limonene	fragrance	The scent	Fragrance

What the list leaves out, and what it carriesNo sulfates, silicones, or drying alcohols. Protein-free: this is built for moisture rather than for strengthening. Contains fragrance. Chelators for hard water.

Full ingredient list (27)

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

General function
The base of almost every rinse-off and cream hair product. It carries everything else and is normally the first ingredient on the label.

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

General function
A classic hairspray polymer. It gives firm hold but attracts moisture, so humidity can soften the set.

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

May suitMaximum-hold styling
Synthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.

DependsBuild-up-sensitive routines
Some acrylate copolymers rinse with water and some need a detergent; the label alone does not say which one a formula used.

May not suitClimate-sensitive or frizz-prone hair
The film takes up water from the air. The patent work that produced the VP/VA copolymers describes a PVP film turning sticky after time in a humid atmosphere, and being dependable only where humidity is low — so hold and feel both move with the weather.

PubChem
- film former
- polymer
3 PEG-40 Hydrogenated Castor Oil

General function
A castor-oil derivative that dissolves fragrance and oils into water so the product stays clear and does not separate.

Leading ingredient
Listed in the first three ingredients, it is likely a structural part of this formula.
- solubilizer
- emulsifier
4 Panthenol

General function
Provitamin B5. It draws in water and penetrates the strand a little, which is why it is the standard ingredient for softness and shine claims.

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

May suitFine or easily flattened hair
It hydrates without adding oil or a film, which is the combination fine hair usually needs.

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

May suitVery dry or highly damaged hair
A humectant that also penetrates the cuticle, so it holds water inside the strand rather than only on the surface.

PubChem
- humectant
- conditioning agent
- vitamin
▾Below about this point, order stops being meaningful — these are typically used at 1% or less.
5 Camellia Sinensis (Green Tea) Leaf Extract · Camellia Sinensis Leaf Extract

General function
Green tea extract, included for antioxidants and as a marketing-forward botanical.

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.
- botanical extract
- antioxidant
6 Lavandula Angustifolia Flower Extract

General function
An extract from the flower of Lavandula Angustifolia. Plant extracts are used across a wide range of levels, and label order is the best guide to how much is here.

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.
- botanical extract
7 Thymus Vulgaris Leaf Extract

General function
An extract from the leaf of Thymus Vulgaris. Plant extracts are used across a wide range of levels, and label order is the best guide to how much is here.

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.
- botanical extract
8 Thuja Occidentalis Leaf Extract

General function
An extract from the leaf of Thuja Occidentalis. Plant extracts are used across a wide range of levels, and label order is the best guide to how much is here.

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.
- botanical extract
9 Sodium Hyaluronate

General function
A large water-binding molecule that sits on the surface holding moisture.

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 suitDry, coarse, or high-porosity hair
High-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 hair
Binds 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 hair
A humectant moves water in whichever direction the air allows: it holds moisture in humid conditions and can pull it back out of hair in very dry ones.
- humectant
10 Phyllanthus Emblica Fruit Extract
- botanical extract
11 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.

Role in this product type
In styling gel, glycerin helps retain moisture as the product dries, supporting a softer, more flexible finish. The hold itself comes from the formula's film-forming polymers.

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 suitDry, coarse, or high-porosity hair
High-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 hair
Binds 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 hair
Water 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.

Cosmetic Ingredient Review
- humectant
12 Ethylhexylglycerin

General function
A preservative booster that also adds a little softness. Almost always paired with phenoxyethanol.

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 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.

PubChem
- preservative
- emollient
13 Tocopherol
- antioxidant
- vitamin
14 Carbomer

General function
A thickener that turns a liquid into a clear gel. It also contributes a light hold.

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 suitClimate-sensitive or frizz-prone hair
A set polymer film is a physical barrier to humidity, so a style keeps its shape longer in damp conditions.

May suitMaximum-hold styling
Synthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.

DependsBuild-up-sensitive routines
Some acrylate copolymers rinse with water and some need a detergent; the label alone does not say which one a formula used.
- thickener
- polymer
- film former
15 Aminomethyl Propanol

General function
A base used in trace amounts to neutralise acidic hold polymers so they thicken and set properly.

Estimated lower-concentration zone
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

DependsFrizz-prone, damaged, or high-friction hair
pH adjusters are how a formula is brought to a chosen acidity, and an acidic formula keeps the cuticle lying flatter than an alkaline one. Which way this one moves the pH depends on the formula, and the finished pH is not on the label.

PubChem
- pH adjuster
16 Caprylyl Glycol

General function
A gentle preservative helper that also holds a little moisture.

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

DependsClimate-sensitive or frizz-prone hair
A humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.

PubChem
- preservative
- humectant
17 Sodium Benzoate
- preservative
18 Potassium Sorbate
- preservative
19 Sodium Gluconate

General function
A gentle, biodegradable chelator that binds hard-water minerals in place of EDTA.

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
Binds 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 hair
Copper 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.

PubChem
- hard-water chelator
20 Phenoxyethanol
- preservative
21 Fragrance · Parfum

General function
An undisclosed blend of scent ingredients. Regulations let it stay unlisted, so a fragrance-free product is the only way to be certain what is not in it.

Estimated lower-concentration zone
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

May not suitFragrance-sensitive routines
Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
- fragrance
- declared fragrance
22 Linalool

General function
A floral fragrance component listed separately as a recognised contact allergen.

Estimated lower-concentration zone
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

May not suitFragrance-sensitive routines
One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.

PubChem
- fragrance
- named fragrance allergen
23 Citronellol

General function
A rose-like fragrance component named separately as a recognised allergen.

Estimated lower-concentration zone
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

May not suitFragrance-sensitive routines
One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.

PubChem
- fragrance
- named fragrance allergen
24 Limonene

General function
A citrus-smelling fragrance component that EU rules require to be named separately because some people react to it.

Estimated lower-concentration zone
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

May not suitFragrance-sensitive routines
One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.

PubChem
- fragrance
- named fragrance allergen
25 Dimethyl Phenethyl Acetate

General function
A fresh, floral fragrance component.

Estimated lower-concentration zone
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

May not suitFragrance-sensitive routines
Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
- fragrance
26 Tetramethyl Acetyloctahydronaphthalenes

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

Estimated lower-concentration zone
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

May not suitFragrance-sensitive routines
Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
- fragrance
27 Citrus Aurantium Peel Oil

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

Estimated lower-concentration zone
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

May not suitFragrance-sensitive routines
Essential oils are fragrance. Several carry constituents on the EU list of declared fragrance allergens, so a label with no fragrance line can still be a scented product.
- botanical extract
- essential oil
- fragrance

What the whole list adds up to

7 fragrances
6 botanical extracts
5 preservatives
4 humectants
3 named fragrance allergens
2 film formers
2 polymers
2 vitamins
2 antioxidants
1 solvent
1 solubilizer
1 emulsifier
1 conditioning agent
1 emollient

Ingredient list captured 2026-08-27. Formulas change — check the package in your hand when an ingredient matters to you.

Price · 8 oz

Seen at $28 1 store · checked Aug 27

Good value under $28 Under $3.44/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 $28 line; products that do this job typically go for about $29 at this size.

Show the price ladder

Price for 8 ozlower is better

Where we’ve seen it2 listings · 1 store

Ulta
$28.00

8 oz · $3.50/oz

Aug 25Lowest per oz
Ulta
$28.00

8 oz · $3.50/oz

Aug 27

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 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 $28 is the price we have observed for the 8 oz. We need three stores before we call a price commonly seen.
Good value under $28 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $3.44/oz; at 8 oz that is $28. Under that line you are paying less than most of them.
About $29 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 8 oz.

Formula

Formula score

10 of 10

The formula carries the systems a gel is built around, and it sits in the middle of the range for gels per ounce.

How the score is counted

1 products we score as doing the same job cost less per ounce
Costs more per ounce than 71% of the 155 gels we’ve priced
Covers 6 of the 6 things a gel should do
Reviewers mention 4 things they like about how it performs

A hold systemThe polymer, gum, or wax that holds the shape.3 pts
Softeners alongside the holdWhat keeps a film flexible instead of brittle.2 pts
No drying alcohol in the first threeFast drying without leading on alcohol.2 pts
A humectantBinds water into the hair.1 pt
A humidity claim with a mechanismThe claim has a film former or silicone behind it.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.

As I AmLowest cost per oz Smoothing Gel $0.82/oz $2.68/oz less

Protein-free
Curly method
Lightweight

· Same function

Differs: Cruelty-free
Drugstore tier

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?

A solid pick for the hair it suits

Best user

Hair that stiffens on protein — for a protein-free formula and a curly-method-compatible formula

Biggest tradeoff

Less suited to anyone sensitive to fragrance, anyone who will not scrunch out a cast, or people shopping on a budget

Best alternative if not

Consider As I Am Smoothing Gel, 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

Medium hold

Synthetic hold polymers are present.

PVP
Carbomer

Supported

Structure that lasts the day.

Adds definition while reducing frizz

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

PVP
Carbomer

Supported

Smoother strands, less frizz.

Bouncy results in humidity

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

PVP
Carbomer

Supported

Smoother strands, less frizz.

Contains hyaluronic acid, lavender, green tea

This is a marketing claim; an ingredient list cannot speak to it.

—

Stated by brand

Can’t be confirmed from label.

Free from sulfates, silicones, drying alcohols

No sulfate detergents appear in the ingredient list.

—

Supported

Gentler on colour and coils.

Cruelty-free and vegan

Our researched record has this brand or product as vegan.

—

Supported

Matches our researched record.

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.

A pea-size amount goes a long way, so the bottle lasts

Ulta reviewer

Defines curls without leaving them crunchy or flaky

Curlsmith.com verified buyer

Longtime favorite hydrating gel with fantastic hold and definition

Curlsmith.com verified buyer, Nichole F.

Used as go-to gel for 4+ years, nothing else holds curls for days like it

Curlsmith.com verified buyer

Several reviewers reported dryness the next day and sticky residue

Ulta reviewer aggregate

How this page was made

Everything above is generated from our researched product record — identity, the ingredient list as printed, the brand's own claims, dated price observations, and review themes written in our researchers' own words. No part of this page is written per product.
The value band is a fixed label over two stored numbers: this product’s cost per ounce as a percentile of every product of this type we have priced, each at the size it is most often sold in, and how many products we score as doing the same job cost at least a quarter less per ounce.
Both scores out of ten are defined on this page. The formula score is completeness for the job, computed from a fixed per-format checklist shown beneath the gauge; the price score is cost per ounce against every product of this type we have priced.
The "Is this right for you?" panel reads only your own consultation answers, and it applies exactly the filters our recommendation engine applies. It is computed when you load the page and is never stored on it.
2 sources consulted for this product (1 manufacturer or regulatory, 1 retailer, 0 editorial), last checked 2026-08-27.
Ingredient references are linked for 10 of 16 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 2026-08-27.

Hydro Style Flexi Defining Curl Gel - 8.0 oz

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 Curlsmith

How this page was made

Your personalized hair plan