Tech
I Tested Over 40 Heat Protectant Sprays to Find the Best of the Best
Compare Our Top Picks
Honorable Mentions
Photograph: Kat Merck
Sutra Heat Guard Blowout Cream for $24: I love Sutra’s IR2 hair straightener, so I had high hopes. This thick and almost fragrance-free cream is meant to protect up to 450 degrees Fahrenheit and reduce drying time, but my hair felt dried out after use.
Function of Beauty Smooth With It Blowout Mist for $13: This Target-exclusive spray is fortified with argan oil and Tsubaki oil (from camellia fruit), a common ingredient in many K-beauty products. It is a spray, but I was surprised to find it comes out with an opaque, creamlike consistency rather than as a liquid, which means it goes on a bit heavy. That said, sometimes my frizzy hair needs something on the heavy side, and this definitely fit the bill—it did visibly reduce frizz after blow-drying, and my hair felt very soft.
Remilia Rice & Shine Leave-in Conditioner for $24: This is a hydrating, heat-protective leave-in spray with a cool, cork-topped bottle and an inoffensive scent. However, it did not do much for frizz in my tests.
Mark Anthony Grow Long Anti-Frizz Shield Ultimate Blowout for $10: This anti-frizz spray is a great value, but it didn’t work wonders on my 3a curls, and Function of Beauty’s Smooth With It (above) outperformed it in this price category.
Raw Sugar Multi Miracle Leave-in Conditioner for $10: I really liked the wood accent and spray nozzle on the bottle of this heat-protective leave-in conditioner, but it did not perform well on frizz in my tests.
Biolage Thermal Setting Spray for $24: I like the Biolage brand, and the fact that this can be used on either damp or dry hair (though it doesn’t give a temperature limit). However, whether I used it wet or dry, I found it left parts of my hair stiff. Some online reviewers, though, found they quite liked it for setting curls.
Courtesy of Emi Jay
Emi Jay Heavenly Hair Milk for $40: This is not exactly a spray, but it is lightweight enough that it could be, and it comes in a cool bottle with a pump that twists down to become a flush cap. It’s a combination heat protectant and detangler that happens to be an excellent anti-frizz product on its own (it supposedly cuts down on drying time too, but this feature wasn’t notable in my testing). This was at one time my first pick for best smelling, but someone online said it smelled like Play-Doh, and I was never able to un-smell it.
Moroccanoil Perfect Defense Heat Protectant for $15 (2 ounces): All of Moroccanoil’s products come infused with argan oil, and this spray that protects up to 450 degrees Fahrenheit is no exception. It can be used on wet or dry hair, and it’s extremely lightweight—I thought it felt and acted like a light hairspray, for better or for worse. I didn’t love the scent or the super-fine, alcohol-based mist—in fact, I was worried it would dry my hair out, but it didn’t.
Milk_Shake Lifestyling Amazing Anti-Humidity Spray for $28 and Smoothing Cream for $24: I love Milk_Shake as a brand, and these products were just fine, but didn’t stand out enough to qualify as top picks.
Verb Frizz Defense Smoothing Spray for $22: I’d heard great things about this frizz-fighting spray, and indeed it’s lightweight, feels non-drying, and doesn’t leave any heavy residue. It’d be a great pick if you have straight or wavy hair, but there are more effective options to cut frizz for type 3 and 4 curls if you’re trying to achieve a blowout.
Reverie Milk Anti-Frizz Leave-in Nourishing Treatment for $44: I loved this cream’s spicy botanical scent, stylish glass bottle, and the fact that it protects up to 450 degrees Fahrenheit (according to Reverie; it does not say so on the bottle). It worked fine! There are just too many better options for half the price. (Ed. note: This is reviews editor Adrienne So’s current favorite heat protectant for thick, wavy 2a hair. She mainly likes the ease of application and frizz prevention, but admits that it’s stupid expensive.)
Others We Tried
Photograph: Kat Merck
Hairstory Primer Smoothing & Protecting Mist for $36: This leave-in mist protects up to 450 degrees Fahrenheit and is designed to work with the whole Hairstory New Wash Method ($64), which involves a detergent-free “cleansing cream.” I tried it and it reminded me of the whole “no ’poo” movement of the early aughts, where practitioners eschewed modern shampoo for more natural options like baking soda. This method is not for everyone, but if you do try it, I don’t think the mist adds enough to justify the cost.
IGK Good Behavior Spirulina Protein Smoothing Spray for $38: This aerosol felt like it dried my hair out a bit, and it has the same unpleasant scent as the 4-in-1 (above). I didn’t care for it in a liquid spray, but it was overwhelming in aerosol cloud form.
Photograph: Kat Merck
R+Co Bleu Hypersonic Heat Styling Mist for $36: This high-tech-looking aerosol in a recycled aluminum bottle was a favorite during the early weeks of testing—I liked its protection up to 450 degrees Fahrenheit and its frizz-fighting properties. However, it does use a polymer and resin complex to smooth hair, and over time I noticed it was leaving a sticky residue on my hands and heat tools.
Cloud 9 Miracle Repair 3-in-1 Leave-in Conditioning Spray for $26 and Cloud 9 Blowout Blow Dry Serum for $23: People rave about Cloud 9 online, and I really like parent brand Beautopia’s vibrating hair straightener, but neither of these products did much to cut down frizz during my tests.
Mane Cotton Candy Dry Texture and Volume Spray for $26: Protective up to 380 degrees Fahrenheit, this styler is supposed to add volume, and I had high hopes given my positive experience with this brand’s Temp Check heat protectant (above). However, it had the opposite effect on my mid-back-length hair.
Briogeo Farewell Frizz Blowdry Perfection & Heat Protectant Creme for $26: I have thick, unruly hair, and this cream protectant felt like it actually made my hair unmanageable and harder to style. It may speak to its effectiveness, but I felt like I had to take too many passes with a titanium flat iron turned up to max temperature.
Photograph: Kat Merck
Pureology Instant Levitation Mist for $32: Pureology is known for its formulas made specifically for color-treated hair, so I was hoping this would be a great-performing solution for those who don’t want to risk ruining their expensive highlights or balayage. However, it seemed to leave a dull residue, and neither I nor my short-haired tester found the volumizing feature to be very effective.
R+Co Chainmail Thermal Protection Styling Spray for $36: I appreciated this spray for its ability to add lots of visible shine, but the aerosol nozzle was not as targeted as I’d have liked, creating such a wide-ranging, fine-mist fog that it was nearly impossible not to breathe it in. I also found the cologne-like scent overwhelming.
Milk_Shake Lifestyling Thermo-Protector for $40: I usually love Milk_Shake products, but this aerosol spray felt like it dried out my hair and amplified my already hard-to-handle frizz after blow-drying. It also did not add a discernible amount of shine as promised.
FoxyBae Cool AF Heat Protectant + Biotin for $16: I like the cheery design of this pump spray bottle, as well as the fact it can be used on wet or dry hair. However, it didn’t seem as effective as other brands and was greasy when used on dry hair.
Chi 44 Iron Guard for $19: This drugstore stalwart works well to protect from heat while also tamping down frizz, and the new Botanical Bliss scent is an improvement over the original formula’s. However, it left a sticky residue on my hands and heat tools.
Neqi Diamond Glass Styling Spray for $12: I love Neqi’s hair perfume spray, so I had high hopes for its heat protectant, but it just didn’t do much to reduce frizz.
FAQs
How Do Heat Protectants Work?
Ingredients vary, but most heat protectants work much the same way: by deploying ingredients like copolymers or silicone that coat the hair shaft to slow (though not totally stop) heat conduction. Many heat protectants also include moisturizers to help seal and smooth the cuticle to reduce frizz. Because heat protectants can only slow, not completely stop, heat damage, it’s still important to use the lowest heat settings you can for your hair for the least amount of time.
I wash my 3a curly hair twice a week, then blow-dry and follow up with a straightening iron. I touch up my hair with a straightening iron daily in between. I tested the heat protectants in this guide in the course of my normal day-to-day life over a period of four months. I used each product on either damp hair before blow-drying or on dry hair before the straightening iron—whichever was indicated by the instructions. If a product could be used on damp and dry hair, I tried it both ways.
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Tech
Thinking Machines Cofounder’s Office Relationship Preceded His Termination
Leaders at Mira Murati’s Thinking Machines Lab confronted the startup’s cofounder and former CTO, Barret Zoph, over an alleged relationship with another employee last summer, WIRED has learned.
That relationship was likely the alleged “misconduct” that has been mentioned in prior reporting, including by WIRED.
To protect the privacy of the individuals involved, WIRED is not naming the employee in question. The individual, who worked in a different department than Zoph and was in a leadership role, is no longer at the lab.
Murati approached Zoph to discuss the relationship, sources say. The cofounders’ working relationship broke down in the months following that conversation, according to multiple sources, and Zoph started speaking to competitors about other opportunities.
Before Zoph left the company, he was in conversation with leaders from Meta Superintelligence Labs, according to a source familiar with the matter. Zoph was ultimately hired by OpenAI. OpenAI’s CEO of applications, Fidji Simo, said the hiring had been in the works for weeks. Simo also noted that she did not share Thinking Machines’ concerns over Zoph’s ethics.
Zoph and OpenAI declined to comment for this story.
This week, a third Thinking Machines cofounder, Luke Metz, and at least three other researchers from Murati’s startup also departed for OpenAI. In October, the startup’s cofounder Andrew Tulloch left for Meta.
While tensions between Murati and Zoph came to a head in recent days, they do not entirely explain the broader exodus of Thinking Machines employees.
WIRED previously reported that there was misalignment within Thinking Machines about what the startup should build.
In November, Murati’s startup was reportedly looking to raise capital at a $50 billion valuation, up from its current valuation of $12 billion.
Thinking Machines Lab declined to comment for this story.
Tech
This Jackery Power Station Can Save You in an Emergency, and It’s on Sale for $199
Here in the Pacific Northwest, we’re heading into the cold and windy season, which generally means power outages. One of the best ways to stay prepared for those cold and dark days is a portable power station like the Jackery Explorer 300 Plus, which is currently marked down by $100 at Best Buy and by the same amount at B&H. It’s compact enough to tuck away in a cabinet for a rainy day, but still has enough juice to power small and medium sized devices.
I actually picked up one of these a few weeks ago ahead of a big windstorm, and although I fortunately didn’t have to use it, I did run some quick tests on it to make sure everything was in working order. Every device I connected to the Jackery started charging at its fastest rate instantly, and I plugged my router in as well, which happily ran off the outlet with no issue. While I didn’t get a chance to drain the battery, it has a 288-watt-hour capacity that’s excellent for many charges of smaller devices like phones and tablets, or hours of use keeping your small appliances awake.
It has a raft of ports for charging and powering your various devices. There’s a regular USB-A port with a 15W max for incidentals, plus two USB-C ports with a 100W max, one of which is also used as the input to charge the power station. There’s a traditional American 120V outlet too, with a 300W limit, in case the lower wattage USB ports don’t quite fit the bill for your most demanding equipment. There’s even a charger of the style you find in cars, in case you have accessories that need it.
If you’re worried the Explorer 300 Plus won’t have enough juice to get you through a long outage, or you’re a frequent road tripper, I also spotted several Jackery solar panels marked down at Best Buy. The smaller 40W solar panel is marked down to $79 from $130, and the larger 100W version is discounted down to $198 from $299. While this smaller model is great for individuals and occasional use, make sure to check out our other favorite portable power stations for bigger batteries.
Tech
Former USDS Leaders Launch Tech Reform Project to Fix What DOGE Broke
The past year has been traumatic for many of the volunteer tech warriors of what was once called the United States Digital Service (USDS). The team’s former coders, designers, and UX experts have watched in horror as Donald Trump rebranded the service as DOGE, effectively forced out its staff, and employed a strike force of young and reckless engineers to dismantle government agencies under the guise of eliminating fraud. But one aspect of the Trump initiative triggered envy in tech reformers: the Trump administration’s fearlessness in upending generations of cruft and inertia in government services. What if government leaders actually used that decisiveness and clout in service of the people instead of following the murky agendas of Donald Trump or DOGE maestro Elon Musk?
A small though influential team is proposing to answer that exact question, working on a solution they hope to deploy during the next Democratic administration. The initiative is called Tech Viaduct, and its goal is to create a complete plan to reboot how the US delivers services to citizens. The Viaduct cadre of experienced federal tech officials is in the process of cooking up specifics on how to remake the government, aiming to produce initial recommendations by the spring. By 2029, if a Democrat wins, it hopes to have its plan adopted by the White House.
Tech Viaduct’s advisory panel includes former Obama chief of staff and Biden’s secretary of Veterans Affairs Denis McDonough; Biden’s deputy CTO Alexander Macgillivray; Marina Nitze, former CTO of the VA; and Hillary Clinton campaign manager Robby Mook. But most attention-grabbing is its senior adviser and spiritual leader, Mikey Dickerson, the crusty former Google engineer who was the first leader of USDS. His hands-on ethic and unfiltered distaste for bureaucracy embodied the spirit of Obama’s tech surge. No one is more familiar with how government tech services fail American citizens than Dickerson. And no one is more disgusted with the various ways they have fallen short.
Dickerson himself unwittingly put the Viaduct project in motion last April. He was packing up the contents of his DC-area condo to move as far away as possible from the political scrum (to an abandoned sky observatory in a remote corner of Arizona) when McDonough suggested he meet with Mook. When the two got together, they bemoaned the DOGE initiative but agreed that the impulse to shred the dysfunctional system and start over was a good one. “The basic idea is that it’s too hard to get things done,” says Dickerson. “They’re not wrong about that.” He admits that Democrats had blown a big opportunity “For 10 years we’ve had tiny wins here and there but never terraformed the whole ecosystem,” Dickerson says. “What would that look like?”
Dickerson was surprised a few months later when Mook called him to say he found funding from Searchlight Institute, a liberal think tank devoted to novel policy initiatives, to get the idea off the ground. (A Searchlight spokesperson says that the think tank is budgeting $1 million for the project.) Dickerson, like Al Pacino in Godfather III, was pulled back in. Ironically, it was Trump’s reckless-abandon approach to government that convinced him that change was possible. “When I was there, we were severely outgunned, 200 people running around trying to improve websites,” he says. “Trump has knocked over all the beehives—the beltway bandits, the contractor industrial complex, the union industrial complex.”
Tech Viaduct has two aims. The first is to produce a master plan to remake government services—establishing an unbiased procurement process, creating a merit-based hiring process, and assuring oversight to make sure things don’t go awry. (Welcome back, inspector generals!) The idea is to design signature-ready executive orders and legislative drafts that will guide the recruiting strategy for a revitalized civil service. In the next few months, the group plans to devise and test a framework that could be executed immediately in 2029, without any momentum-killing consensus building. In Viaduct’s vision that consensus will be achieved before the election. “Thinking up bright ideas is going to be the easy part,“ Dickerson says. “As hard as we’re going to work in the next three to six months, we’re going to have to spend another two to three years, through a primary season and through an election, advocating as if we were a lobbying group.”
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