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IGK Good Behavior Spirulina Protein Smoothing Spray Review
Most anti-frizz products look impressive for the first hour. The real question is what happens after a commute, a humid afternoon, or a long day outside.
So we decided to find out if IGK Good Behavior Spirulina Protein Smoothing Spray is actually worth the hype. Steam, humidity, and curly hair — no ideal conditions, no shortcuts. Everything we found is in this review, from how the formula actually works to whether the results hold up once frizz kicks in.
Since we tested this on curly hair, and if you want to see how it performed against two other sprays on the same hair type, we broke it all down in our full curly hair anti-frizz spray guide.
Quick Verdict
The IGK Good Behavior Spirulina Protein Smoothing Spray is a heat-activated blowout spray that delivers keratin-treatment results at home.
✅ Best for regular heat stylers with wavy to moderately curly hair who want salon-quality smoothness, long-lasting frizz control, and a glossy finish without a separate heat protectant.
❌ Not ideal for those who air-dry their hair, have very thick or coarse hair, or want to avoid silicones and alcohol-based formulas.
💬 Bottom Line — If you blow-dry regularly and want a cleaner, more nourishing alternative to traditional smoothing sprays, IGK Good Behavior delivers. Just make sure heat styling is already part of your routine — without it, you won’t get the full results.
IGK Good Behavior Spirulina Protein Smoothing Spray: Key Features
The IGK Good Behavior Spirulina Protein Smoothing Spray is a blowout spray that gives you salon-smooth hair at home — no keratin appointment needed. It works when heat is applied, using spirulina protein and bonding polymers to smooth frizz, boost shine, and protect hair from heat damage up to 450°F. It’s safe for all hair types including color-treated hair, and the formula is clean — free from sulfates, parabens, phthalates, and harsh chemicals.
Ingredients / Formula
The IGK Good Behavior Spirulina Protein Smoothing Spray is built around a combination of plant-based proteins and heat-activated polymers. Alongside the spirulina protein and bonding polymers, the formula includes hydrolyzed corn protein, hydrolyzed soy protein, and hydrolyzed wheat proteins that work together to reinforce the hair’s structure and add an extra layer of strength and smoothness. Arctium lappa root extract — derived from burdock root — rounds out the formula by helping to nourish the scalp and support overall hair health from the roots down.
Texture, Scent & Finish
Texture
The spray has a fine, lightweight mist consistency that spreads easily through damp hair without feeling sticky, heavy, or wet. It doesn’t clump or leave any visible residue after blow-drying, making it feel more like a treatment than a traditional styling product.
Scent
It carries a warm, sweet fragrance with subtle vanilla and floral undertones — noticeable during application but not overwhelming once the hair is dry. Those sensitive to fragrance will want to take note, as the scent does linger slightly after styling.
Finish
Once blow-dried and fully activated, it leaves hair with a noticeably smooth, glossy finish that looks polished and feels soft to the touch. The result is closer to what you’d expect from a salon blowout rather than a standard at-home styling spray.
Key Features
Spirulina Protein
A plant-based protein packed with amino acids, vitamins, minerals, and biotin that strengthens and nourishes hair from within, helping restore softness and overall hair health with regular use.
Innovative Bonding Polymers
Formaldehyde-free bonding polymers that mimic the frizz-free, high-shine coating of a keratin treatment when activated by heat — delivering salon-quality smoothness without the harsh chemicals.
Frizz Control and Smoothing
Helps manage and reduce frizz, leaving hair sleek and polished for up to 24 hours after heat activation. Works on all hair textures including wavy, curly, and coily hair types.
Heat Protection for Hair
Shields hair from heat damage caused by blow-dryers, flat irons, and curling tools up to 450°F, making it a dual-purpose product that smooths and protects at the same time.
Shine-Enhancing Formula
Leaves hair with a glossy, glass-like finish that catches the light — adding a healthy, radiant shine without weighing hair down or leaving it feeling greasy or stiff.
Lightweight and Travel-Friendly
Dispenses as a fine, non-greasy mist that absorbs quickly and evenly through the hair. Also available in a convenient travel size, making it easy to bring along wherever you go.
For All Hair Types
Formulated to work across all hair textures — from fine and straight to thick, curly, and coily. Also safe for color-treated and chemically processed hair.
Clean and Ethical Formula
Free from sulfates, parabens, phthalates, mineral oil, formaldehydes, and other harsh ingredients. Also vegan, gluten-free, and Leaping Bunny certified cruelty-free.
How We Tested It
We ran a hot shower, let the bathroom fill with steam, and had Tyler stand in it for 15 minutes to mimic a real humid environment. Her curls lost their shape, frizz took over, and her hair looked a mess which is exactly what we were going for.
Then we put the IGK Good Behavior Spirulina Protein Smoothing Spray to work and waited to see if it could turn things around.
Performance Results
The IGK Good Behavior Spirulina Protein Smoothing Spray makes two big claims — reducing frizz and adding a radiant shine without weighing the hair down. We put it to the test to see if it actually delivers.
After applying the spray to the right side of Tyler’s hair and working it through, we started to see a noticeable difference. Her curls looked more defined compared to the untreated side, and the frizz had visibly calmed down.
Final Results
Tyler was impressed with how the IGK Good Behavior Spirulina Protein Smoothing Spray handled frizz, noting it did a solid job of taming and smoothing her hair after the humidity test. She also appreciated the scent, giving the fragrance a 4 out of 5 for its pleasant smell during and after application.
IGK Good Behavior Smoothing Spray Pros and Cons
Pros
Mimics a Keratin Treatment
Delivers salon-quality smoothness and high shine that closely resembles the results of a professional keratin treatment — without the harsh chemicals or the salon price tag.
Long-Lasting Frizz Control
Keeps frizz under control for up to 24 hours once heat-activated, making it one of the stronger performers among at-home smoothing sprays.
Strong Heat Protection
Doubles as a heat protectant up to 450°F, so it protects and smooths at the same time — no need for a separate heat protectant product.
Adds Noticeable Shine
Leaves hair with a glossy, glass-like finish that many users describe as one of its biggest standout qualities, especially after blow-drying.
Clean and Ethical Formula
Free from sulfates, parabens, phthalates, mineral oil, and formaldehydes. Vegan and Leaping Bunny certified cruelty-free.
Safe for Color-Treated Hair
Gentle enough for regular use on color-treated and chemically processed hair without stripping or fading color.
Cons
Requires Heat to Activate
Without a blow-dryer or flat iron, the formula won’t deliver the same smoothing results. Not suitable for those who prefer air-drying their hair.
Contains Silicones
The formula includes silicones which can build up over time with daily use, particularly on fine or low-porosity hair types.
Can Weigh Hair Down if Overapplied
Too much product — especially on fine hair — can leave hair feeling heavy or stiff rather than soft and natural-looking.
High Alcohol Content
Denatured alcohol is the first listed ingredient, which some users with dry or damaged hair found to be drying with repeated long-term use.
May Underwhelm Thick Coarse Hair
Those with very thick, coarse, or tightly coiled hair may find the smoothing effect is not strong enough on its own without layering additional products.
Strong Fumes When Spraying
As an aerosol with an alcohol-based formula, it should always be used in a well-ventilated space to avoid the fumes feeling overwhelming during application.
How the IGK Good Behavior Smoothing Spray Compares to Similar Products
| Feature |
Salon Smoothing Pick
IGK Good Behavior Spirulina Protein Smoothing Spray
|
No-Heat Pick
Living Proof No Frizz Instant De-Frizzer
|
Best Blowout Pick
Kenra Platinum Blow-Dry Spray
|
|---|---|---|---|
| Application | Damp or wet hair | Dry hair only | Damp or wet hair |
| Primary function | Keratin-like blowout treatment with frizz control | Dry conditioning + instant frizz taming between washes | Heat-protective blow-dry spray with frizz control |
| Key ingredients | Spirulina protein, formaldehyde-free bonding polymers, multi-plant proteins | Amaranth seed extract, biomimetic 5-oil blend, cationic conditioning agent | Argan oil, jojoba oil, silicone complex (cyclopentasiloxane, dimethicone) |
| Frizz control duration | Up to 24 hours Requires heat activation |
Up to 92% frizz reduction Instant, no heat needed |
Up to 72 hours humidity resistance Requires heat activation |
| Heat protection | Yes — up to 450°F | No | Yes — up to 450°F |
| Silicone-free | No — contains silicones | Yes | No — silicone-based formula |
| Reduces blow-dry time | Yes | No | Yes — up to 50% |
| UV protection | Yes | No | No |
| Suitable hair types | All types including curly and coily, color-treated | All types — fine to thick, color-treated | All types — fine, medium, thick |
| Vegan & cruelty-free | Yes — both Leaping Bunny certified |
Yes — both | Not confirmed vegan |
| Clean formula | No sulfates, parabens, phthalates, mineral oil, formaldehydes | No sulfates, parabens, phthalates, mineral oil, silicones | No notable clean certifications listed |
| Best use case | Salon-quality smoothing result that lasts through the day | Quick on-the-go frizz fix on dry hair — no styling step needed | Faster, smoother blowouts with strong humidity resistance |
IGK Good Behavior Spirulina Protein Smoothing Spray | Living Proof No Frizz Instant De-Frizzer | Kenra Platinum Blow-Dry Spray | |
|---|---|---|---|
Application | Damp or wet hair | Dry hair only | Damp or wet hair |
Primary function | Keratin-like blowout treatment with frizz control | Dry conditioning + instant frizz taming between washes | Heat-protective blow-dry spray with frizz control |
Key ingredients | Spirulina protein, formaldehyde-free bonding polymers, multi-plant proteins | Amaranth seed extract, biomimetic 5-oil blend, cationic conditioning agent | Argan oil, jojoba oil, silicone complex (cyclopentasiloxane, dimethicone) |
Frizz control duration | Up to 24 hours — requires heat activation | Up to 92% frizz reduction — instant, no heat needed | Up to 72 hours humidity resistance — requires heat activation |
Heat protection | Yes — up to 450°F | No | Yes — up to 450°F |
Silicone-free | No — contains silicones | Yes | No — silicone-based formula |
Reduces blow-dry time | Yes | No | Yes — up to 50% |
UV protection | Yes | No | No |
Suitable hair types | All types including curly and coily, color-treated | All types — fine to thick, color-treated | All types — fine, medium, thick |
Vegan & cruelty-free | Yes — both, Leaping Bunny certified | Yes — both | Not confirmed vegan |
Clean formula | No sulfates, parabens, phthalates, mineral oil, formaldehydes | No sulfates, parabens, phthalates, mineral oil, silicones | No notable clean certifications listed |
Best use case | Salon-quality smoothing result that lasts through the day | Quick on-the-go frizz fix on dry hair — no styling step needed | Faster, smoother blowouts with strong humidity resistance |
vs. Living Proof No Frizz Instant De-Frizzer
The IGK Good Behavior Spirulina Protein Smoothing Spray and the Living Proof No Frizz Instant De-Frizzer are both solid anti-frizz options but they serve very different purposes. IGK is a heat-activated blowout spray that mimics the results of a keratin treatment, delivering up to 24 hours of frizz control when paired with a blow-dryer or flat iron. Living Proof is a dry conditioning spray designed for quick, no-heat touch-ups on already-styled hair between washes.
If you regularly blow-dry and want longer-lasting smoothness with serious shine, IGK is the stronger pick. If you need something fast and fuss-free for mid-day frizz control without any additional styling, Living Proof is the easier choice. See our full Living Proof No Frizz Instant De-Frizzer review for everything you need to know before buying.
vs. Kenra Platinum Blow-Dry Spray
The IGK Good Behavior Spirulina Protein Smoothing Spray and the Kenra Platinum Blow-Dry Spray are the most similar of the three — both are heat-activated sprays applied to damp hair before blow-drying. The key difference is in what each prioritizes. Kenra focuses on cutting blow-dry time by up to 50% and building in up to 72 hours of humidity resistance, making it the more performance-driven option for speed and longevity. IGK leans into the keratin-treatment angle, using spirulina protein and bonding polymers to deliver a glossier, smoother finish that feels closer to a salon blowout.
For those who want the fastest blowout with strong all-day humidity protection, Kenra has the edge. For those who prioritize shine, smoothness, and a cleaner ingredient list, IGK is the better choice. See our full Kenra Platinum Blow-Dry Spray review for a closer look at how it performs on its own.
Who Should Use the IGK Good Behavior Smoothing Spray
✅Best for
People who regularly blow-dry or use heat tools and want a product that smooths and protects in one step — no separate heat protectant needed
Anyone chasing that keratin-treatment finish at home without the salon price or the formaldehyde-heavy chemicals
Those with wavy, curly, or frizz-prone hair who need frizz control that actually holds up through the day and not just for an hour
People with color-treated or chemically processed hair looking for a smoothing spray that won’t strip or fade their color
Anyone who wants serious shine — if a glossy, glass-like finish is your goal, this spray consistently delivers that after blow-drying
❌Not ideal for
Those who prefer to air-dry their hair — without heat, the formula simply won’t activate and results will be minimal at best
People with very thick, coarse, or tightly coiled hair who need a more heavy-duty smoothing treatment to get full frizz control
Anyone trying to avoid silicones, as the formula does contain silicone-based ingredients that can cause buildup with daily use over time
Those with fine or low-porosity hair who are already prone to heaviness and product buildup — overapplying can leave hair feeling weighed down
Anyone sensitive to alcohol-based formulas, as denatured alcohol is one of the main ingredients and may feel drying with repeated long-term use
How to Use the IGK Good Behavior Smoothing Spray
Start with Damp, Freshly Washed Hair
The IGK Good Behavior Smoothing Spray is designed to be applied to damp hair right after washing. Towel dry your hair first to remove excess water — your hair should be damp but not dripping before you begin.
Divide Hair into Sections
Before spraying, split your hair into manageable sections. This makes sure every strand gets evenly coated from root to tip and prevents you from missing any spots that could end up frizzy after drying.
Mist the Spray Generously Over Each Section
Hold the canister a few inches away and spray each section thoroughly. Make sure the product is distributed evenly throughout — under-applying is one of the most common reasons people don’t get the full smoothing result.
Comb Through from Root to Tip
After spraying each section, use a wide-tooth comb or detangling brush to work the product evenly through the hair. This step is key to making sure the spirulina protein and bonding polymers reach every strand before heat is applied.
Blow-Dry in Sections to Activate the Formula
Heat is what activates the bonding polymers in this spray — without it, you won’t get the full keratin-like smoothing effect. Blow-dry each section using a round brush, directing the airflow downward along the hair shaft to smooth the cuticle as you go.
Finish with a Flat Iron for Maximum Smoothing
For the sleekest result, apply another light mist of the spray after blow-drying and then flat iron on each section. This final pass locks in the treatment, seals everything in, and brings out that signature high-shine, glass-like finish the product is known for.
Use in a Well-Ventilated Space
The formula contains denatured alcohol as a primary ingredient, so always apply it in a room with good airflow. Spraying in a small, enclosed space can make the fumes feel strong and uncomfortable.
Frequently Asked Questions
Does the IGK Good Behavior Spirulina Protein Smoothing Spray actually work?
Yes, for most hair types it delivers on its promise. The bonding polymers in the formula activate with heat to smooth the hair cuticle and reduce frizz, leaving hair visibly sleeker and shinier after blow-drying. Results tend to be most impressive on wavy to moderately curly hair types. Those with very thick or coarse hair may need to layer it with additional smoothing products to get the full effect.
Does the IGK Good Behavior Smoothing Spray work without heat?
Not to its full potential. The formula is heat-activated, meaning the blow-dryer or flat iron is what triggers the smoothing and frizz-fighting benefits. Applying it without heat will leave some conditioning and light frizz-reducing effects, but you won’t get the keratin-like smoothness and shine the product is known for without using a heat tool.
Is the IGK Good Behavior Smoothing Spray safe for color-treated hair?
Yes. The formula is free from sulfates, parabens, and harsh chemicals that can strip or fade color. It is gentle enough for regular use on color-treated and chemically processed hair, making it a safe addition to a color maintenance routine.
How long does IGK Good Behavior Smoothing Spray last?
When heat-activated properly, the frizz control can last up to 24 hours. For best results, finish with a flat iron after blow-drying to fully seal in the treatment and extend how long the smoothness holds up throughout the day.
Is IGK Good Behavior worth the money?
For regular heat stylers and those who want salon-quality smoothness at home, it is generally considered worth the investment. It replaces the need for a separate heat protectant and delivers noticeable shine and frizz control in one product. Those who air-dry their hair or have very thick and coarse hair may not get enough value from it to justify the price.
Can I use IGK Good Behavior Smoothing Spray on curly hair?
Yes, it is formulated for all hair types including curly and coily textures. However, keep in mind that this spray is designed to smooth and reduce curl definition rather than enhance it. If your goal is to maintain your natural curl pattern, this may not be the right product. It works best for those looking to achieve a sleeker, straighter finish from their curls.
Final Verdict
The IGK Good Behavior Spirulina Protein Smoothing Spray is a solid pick for anyone who blow-dries regularly and wants keratin-treatment results without the salon cost or harsh chemicals. The spirulina protein and heat-activated bonding polymers work together to deliver up to 24 hours of frizz control, noticeable shine, and a smooth, polished finish — all while doubling as a heat protectant up to 450°F.
Based on our testing, results were most visible on wavy to moderately curly hair — Tyler’s curls looked more defined and noticeably less frizzy after application. It’s not a dramatic overnight transformation, but for a at-home spray, it delivers where it counts.
The main caveats are worth noting — it requires heat to fully activate, contains silicones, and may not be strong enough for very thick or coarse hair on its own. But for the right hair type and routine, it’s a genuinely effective product that earns its place in a regular styling routine.
See how the IGK Good Behavior Spirulina Protein smoothing spray compares in our hands-on review of the best anti-frizz sprays for curly hair.
