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Side by side

Eva NYC H2-Whoa! Hydra-Jelly Hair Mask vs Hairstory Pre-Wash

85% function match · 8 of the 10 functions we compared match Formula overlap 10%. Eva NYC H2-Whoa! Hydra-Jelly Hair Mask and Hairstory Pre-Wash share 1 ingredient among each other's most prominent.

Based on your consultation

Which of these fits your hair?

We check your pattern, moisture need, scalp, fragrance tolerance, weight sensitivity and more against each formula — and say which one lines up.

Your profile at a glance

  • Your answers appear here
  • Your answers appear here
  • Your answers appear here
  • Your answers appear here

When each one is the right call

What each formula is built for, from its own ingredient list.

  • H2-Whoa! Hydra-Jelly Hair Mask — protein-sensitive hair
  • Pre-Wash — fragrance-free

Side by side

Every trait, aligned

One row per trait, read from each product’s own ingredient list and record. A dash means we have not researched that field for that product — it is not a “no”.

Trait
Eva NYC H2-Whoa! Hydra-Jelly Hair Mask — brand photograph Eva NYC

H2-Whoa! Hydra-Jelly Hair Mask

  • Mask / treatment
  • Drugstore
  • Sulfate-free
  • Silicone-free
Hairstory Pre-Wash — brand photograph Hairstory

Pre-Wash

  • Mask / treatment
  • Prestige
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
$14–16 8.4 oz · $1.91/oz
$28 4 oz · $5.88/oz

Compared at different sizes — 8.4 oz against 4 oz. Per-ounce prices favour the larger bottle.

Value / price positioning
Priced with its peers $$$$$ Drugstore tier · costs less than 70% of the 357 masks and treatments we’ve priced
Same job for less elsewhere $$$$$ Prestige tier · costs more than 76% of the 357 masks and treatments we’ve priced
Best for hair types
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
Moisture level Same
High Humectants near the top — water-binding is a headline mechanism here. Your hair
High Humectants near the top — water-binding is a headline mechanism here. Your hair
Time on the hair
Short A short wait — it fits inside an ordinary shower. Your hair
Short A short wait — it fits inside an ordinary shower. Your hair
Slip / detangling Differs
High Conditioning agents sit high in the list — this is a detangling formula. Your hair
Little Nothing here is built to reduce combing force. Your hair
Weight on hair Same
Light Water-first and light: unlikely to flatten fine hair. Your hair
Light Water-first and light: unlikely to flatten fine hair. Your hair
Fragrance
Present Fragrance is listed; it sits below the working ingredients. Your hair
None listed No fragrance is listed. Your hair
Protein Same
None No protein or amino acids in the list. Your hair
None No protein or amino acids in the list. Your hair
Silicone / wax buildup Same
None Nothing here needs a detergent wash to remove. Your hair
None Nothing here needs a detergent wash to remove. Your hair
Clarifying wash needed
Low Your hair
Low Your hair
Oils and butters Same
None No oils or butters in the list. Your hair
None No oils or butters in the list. Your hair
Formula completeness
out of 10
Covers the core
out of 10
Covers the core
Who should choose this
  • Protein-sensitive hairthat stiffens when protein is added
  • Maximum slipfor hair that tangles the moment it is wet
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Curly-method routinesno sulfates and no water-insoluble silicones
  • Fragrance-freeno fragrance (parfum) on the label
  • Unscentedfree of strong smells
  • Protein-sensitive hairthat stiffens when protein is added
  • Dry, thirsty hairhumectants and emollients both sit up front
Why you might skip it
  • Scents bother youthis product carries a scent
  • Very dry or damaged hairit contains fast-drying alcohol
  • Hair that needs proteinthere is none in this list
  • Hair that needs proteinthere is none in this list
  • Hair that tangles wetnothing here reduces combing force
  • Dry or very humid airwhere heavy humectants work against you
from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.
More facts about each one
Type
Mask / treatment
Mask / treatment
Line
—
New Wash
Where to buy
Target
Brand website
Free of
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
  • sulfate-free
  • silicone-free
  • fragrance-free
  • protein-free
  • curly-method compatible
Scent
Scented, not described
Unscented
Use stage
—
Before shampoo
Start on
—
dry hair
Label wait
—
3 minutes
Needs
—
not stated on the label
Time on hair
5–5 min
3–3 min
How often
weekly
every wash
Treatment focus
moisture
multi

Facts as we recorded them. A dash means we have not researched that field for that product — it is not a "no".

The bottom line

The bottom line depends on your hair

Which of these two suits you is a question about your hair, not about them. The consultation answers it — and tells you what your routine needs around it.

Take the consultation

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

The detail behind the table

Where the readings above come from: the ingredient lists themselves, each brand’s claims checked against them, what owners report, and cost per ounce in context.

Shared and distinct ingredients

Shared and distinct ingredients

Computed from the ingredient lists as printed. "Shared" means both lists carry it; where it sits on each label is stated, because position is what tells you how much.

What both formulas carry

IngredientH2-Whoa! Hydra-Jelly Hair MaskPre-Wash
Water
Neutral
#1Leading
#1Leading
Glycerin
Moisturizes
#2Leading
#10Below the 1% line

What only one of them carries

H2-Whoa! Hydra-Jelly Hair Mask

Pre-Wash

Full ingredient list — H2-Whoa! Hydra-Jelly Hair Mask (26)
Full ingredient list — Pre-Wash (15)

Claims check

What each brand says, against what each formula shows

Claims are quoted from each brand. We only mark one supported, partly supported, or conflicting when that product’s ingredient list actually speaks to it.

VerdictsH2-Whoa! Hydra-Jelly Hair MaskPre-Wash
Supported
2
0
Partly supported
0
0
Stated by brand
2
2
Potential conflict
0
0

H2-Whoa! Hydra-Jelly Hair Mask

  • Clinically proven to restore hydration + prevent moisture lossStated by brandOnly the brand’s testing shows this.
  • Lightweight jelly formula with hyaluronic acid and squalaneSupportedLess likely to weigh hair down.
  • Detangling, deep hydration, all hair typesSupportedHelps hair feel hydrated.
  • Apply after shampooing, leave on minimum 5 minutes, rinse wellStated by brandHow to use it, not a claim.

Pre-Wash

  • Purifies the scalp and balances its microbiome, letting you go longer between washes.Stated by brandCan’t be confirmed from label.
  • Detergent-free micellar technology gently and effectively cleanses while soothing the scalp with prebiotics.Stated by brandCan’t be confirmed from label.

What owners say

What people report

Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings, and we never balance one product’s themes against another’s by inventing them.

Hairstory Pre-Wash draws complaints about residue or cast.

H2-Whoa! Hydra-Jelly Hair Mask

Lightweight and moisturizing without weighing down thin hair

Target review (5-star, "Tab"): "Lightweight & moisturizing, doesn't weight hair down, excellent for thin hair."

Hydrated, springy waves lasting multiple days

Target review (5-star, "Shelby"): "This mask blew me away...so hydrated and springy. I got 3 whole days of waves"

Instant detangling and bounce

Target review (5-star, "Mo"): "My hair felt instantly detangled, incredibly soft...gorgeous, healthy bounce."

Pre-Wash

Reduces scalp tightness/itchiness between washes, letting reviewers stretch more days between full washes

reviewers with irritated or itchy scalp, one referenced psoriasis plaque improvement

Many reviewers report a noticeably cleaner, less oily scalp and visible buildup removal after use

oily-scalp / buildup-prone reviewers

A vocal minority say they cannot perceive any difference versus skipping the step, calling it unnecessary or ineffective at removing heavier styling-product buildup

includes a reviewer noting it did not move drugstore hairspray residue from roots

Thin, watery consistency makes it easy to over-apply if not careful

general

One reviewer with fine, oily, curly hair reported the opposite of the "no residue" claim -- hair felt heavy and greasy after following New Wash

fine/2b-2c curly, oily scalp, daily-washer

Price check

Cost per ounce, in context

Cost per ounce against every product of this type we have priced, each at the size it is most often sold in. Value labels are computed from that percentile and from how many products that do the same job cost less; they are comparisons, not judgements about a brand.

$1.91/oz vs $5.88/oz — Hairstory Pre-Wash costs about 3.1× more per ounce than Eva NYC H2-Whoa! Hydra-Jelly Hair Mask.

$0.19/oz median $3.50/oz $24.50/oz $1.91/oz H2-Whoa! Hydra-Jelly Hair $5.88/oz Pre-Wash

Every mark sits on one distribution because these are compared against the same set: 357 masks and treatments with a computable unit price.

Value readH2-Whoa! Hydra-Jelly Hair MaskPre-Wash
Label
Priced with its peersSits in the middle of the range for masks and treatments per ounce.
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.

Computed from cost per ounce against every product of this type we have priced, and from how many products that do the same job cost less. It is a comparison, not a judgement about the brand.

Compare with something else

Close formulas to each of these, as their own comparison pages.

H2-Whoa! Hydra-Jelly Hair Mask vs Hair Rituel Pre-Shampoo Purifying Mask with White ClaySisley Paris · 98% function matchPre-Wash vs Moisture Miracle Aloe & Coconut Water Detangle & Condition Pre-ShampooAfrican Pride · 85% function matchH2-Whoa! Hydra-Jelly Hair Mask vs Hot Oil TherapyVO5 · 93% function matchPre-Wash vs Hair Rituel Pre-Shampoo Purifying Mask with White ClaySisley Paris · 85% function matchH2-Whoa! Hydra-Jelly Hair Mask vs Clear Jelly MaskPaul Mitchell · 93% function matchPre-Wash vs No.0 Intensive Bond Building Hair TreatmentOlaplex · 85% function matchH2-Whoa! Hydra-Jelly Hair Mask vs Lavender Aloe Anti-Breakage Deep ConditionerEden BodyWorks · 93% function matchPre-Wash vs 8 Second Wonder Water Lamellar Hair TreatmentL'Oreal Paris Elvive · 83% function match

H2-Whoa! Hydra-Jelly Hair Mask · Pre-Wash · All masks and treatments in the library

How this page was made

  • This page is assembled from the same researched records the individual product pages render: identity, each ingredient list as printed, each brand's own claims, dated price observations, and review themes written in our researchers' own words. Nothing on it is written per comparison.
  • We do not rank these against each other. Which of them suits you depends on your hair, and that is what the consultation works out.
  • The formula similarity percentage is a stored, precomputed number: position-weighted overlap of the two ingredient lists blended with agreement on the attributes we derive. It measures how alike two formulas are, not how well either works.
  • 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.
  • 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.
  • 9 sources were consulted across the products on this page.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are observations on the dates shown and change without notice. We do not sell these products and take no placement fees.
  • This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.

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