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Side by side

IGK Good Behavior 4 in 1 Prep Spray vs Marc Anthony Strictly Curls Curl to Straight Ultimate Blowout

86% function match · 7 of the 10 functions we compared match Formula overlap 50%. IGK Good Behavior 4 in 1 Prep Spray and Marc Anthony Strictly Curls Curl to Straight Ultimate Blowout share 4 ingredients among each other's most prominent.

These sit in different steps of a routine — IGK Good Behavior 4 in 1 Prep Spray is a leave-in and Marc Anthony Strictly Curls Curl to Straight Ultimate Blowout is a heat protectant. Comparing their formulas is fair; treating one as a replacement for the other is not.

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.

  • Good Behavior 4 in 1 Prep Spray — heat styling
  • Strictly Curls Curl to Straight Ultimate Blowout — protein-sensitive hair

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
IGK Good Behavior 4 in 1 Prep Spray — container IGK

Good Behavior 4 in 1 Prep Spray

  • Leave-in
  • Prestige
  • Sulfate-free
  • Moisture-rich
Marc Anthony

Strictly Curls Curl to Straight Ultimate Blowout

  • Heat protectant
  • Drugstore
  • Sulfate-free
  • Protein-free
Price, size & price per ounce
$16
$10.47 6.7 oz · $1.56/oz
Value / price positioning
Not enough priced leave-ins to place it Prestige tier
Lower cost than most heat protectants $$$$$ Drugstore tier · costs less than 91% of the 223 heat protectants we’ve priced
Best for hair types
Curly–Coily A heavy formula: coarse, curlier strands carry it without flattening. Your hair
Curly–Coily A heavy formula: coarse, curlier strands carry it without flattening. Your hair
Moisture level Differs
Moderate Humectants in the working part of the formula. Your hair
High Humectants near the top — water-binding is a headline mechanism here. Your hair
Oils and butters Differs
Moderate Oils sit high in the list — a softening, coating formula. Your hair
High Butters near the top: a heavy, softening formula. Your hair
Slip / detangling Same
High Conditioning agents sit high in the list — this is a detangling formula. Your hair
High Conditioning agents sit high in the list — this is a detangling formula. Your hair
Weight on hair Same
Rich Heavy butters and waxes in the first eight ingredients. Your hair
Rich Heavy butters and waxes in the first eight ingredients. Your hair
Fragrance
Present Fragrance is listed; it sits below the working ingredients. Your hair
Present Fragrance is listed; it sits below the working ingredients. Your hair
Protein Differs
Minor Protein appears, low enough to be a supporting ingredient. Your hair
None No protein or amino acids in the list. Your hair
Silicone / wax buildup Same
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
Clarifying wash needed
Moderate Your hair
Moderate Your hair
Heat protection
Claimed, no temperature given Sold as a heat protectant; no temperature is stated. Your hair
Fast-drying alcohol Same
None No fast-drying alcohol in the list. Your hair
Formula completeness
out of 10
Complete for its job
out of 10
Complete for its job
Who should choose this
  • Heat stylingthe brand positions this as a heat protectant
  • Maximum slipfor hair that tangles the moment it is wet
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Curl definitionfilm formers hold a clump together
  • 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
  • Coarse or dry hairthat absorbs everything you give it
Why you might skip it
  • Scents bother youthis product carries a scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Oily scalp or fine hairthat gets weighed down
  • Scents bother youthis product carries a light scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Oily scalp or fine hairthat gets weighed down
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
Leave-inspray
Heat protectant
Where to buy
Brand website
Free of
  • sulfate-free
  • sulfate-free
  • protein-free
Cruelty-free
Cruelty-free · PETA-listed
Scent
Fresh & airy
Scented, not described
Heat protection
Claimed, no temperature stated

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

IngredientGood Behavior 4 in 1 Prep SprayStrictly Curls Curl to Straight Ultimate Blowout
Water
Neutral
#1Leading
#1Leading
Silicone Quaternium-8
Buildup
#3Leading
#3Leading
Cocos Nucifera (Coconut) Oil
Softens
#5Supporting
#6Supporting
Glycerin
Moisturizes
#6Supporting
#2Leading
Panthenol
Detangles
#7Supporting
#9Secondary
Fragrance
Fragrance
#38Below the 1% line
#23Below the 1% line

What only one of them carries

Full ingredient list — Good Behavior 4 in 1 Prep Spray (40)
Full ingredient list — Strictly Curls Curl to Straight Ultimate Blowout (32)

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.

VerdictsGood Behavior 4 in 1 Prep SprayStrictly Curls Curl to Straight Ultimate Blowout
Supported
1
3
Partly supported
1
0
Stated by brand
1
2
Potential conflict
0
0

Good Behavior 4 in 1 Prep Spray

  • A multi-tasking hair prep spray that detangles, protects against heat, controls frizz, enhances shineSupportedEasier detangling, less breakage.
  • Protects against heatStated by brandCan’t be confirmed from label.
  • Easy slip for detangling without breakagePartly supportedSupports the surface, not a treatment.

Strictly Curls Curl to Straight Ultimate Blowout

  • Transforms dry, frizzy curls into a smooth, sleek blowoutSupportedSmoother strands, less frizz.
  • Biomimetic polymer shield mimics hair's natural moisture barrierSupportedHelps hair feel hydrated.
  • Smooths the cuticle and reduces frizzSupportedSmoother strands, less frizz.
  • Creates a hydrophobic, humidity-blocking barrier to prevent frizz reversionStated by brandMay help, but not measurable here.
  • Heat-activated formula, protects up to 450°FStated by brandOnly lab testing can show this.

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.

Good Behavior 4 in 1 Prep Spray

Curly users report smoother, softer hair and better flyaway and frizz control before heat styling.

Valerie M and JoJo, verified buyers; official brand reviews

Verified buyers report high shine without greasiness.

Brianna, verified buyer; official brand review

Users with fragile or brittle hair report softer, stronger, tangle-free results.

Amy S and Sarah, verified buyers; official brand reviews

Current official page has substantial review volume and current add-to-bag availability; brand-hosted review selection bias applies.

Official IGK page; 2026-08-24 capture

Strictly Curls Curl to Straight Ultimate Blowout

Several reviewers complain the pump or nozzle dispenses unevenly or malfunctions, making even application harder.

Many reviewers say it noticeably cuts frizz and mimics a flat-ironed, salon-blowout finish when used before blow-drying.

Reviewers frequently note the scent is pleasant and not overpowering, and that the spray does not leave hair crunchy, sticky or stiff.

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.

Strictly Curls Curl to Straight Ultimate Blowout

Against 223 heat protectants with a computable unit price.

Value readGood Behavior 4 in 1 Prep SprayStrictly Curls Curl to Straight Ultimate Blowout
Label
Not enough priced leave-ins to place itWe need more comparable products before we can place this.
Lower cost than most heat protectantsCosts less per ounce than most heat protectants we have researched.

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.

Good Behavior 4 in 1 Prep Spray · Strictly Curls Curl to Straight Ultimate Blowout · All leave-ins 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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