Our editors independently research, test, and recommend the best products; you can learn more about our review process here. We may receive commissions on purchases made from our chosen links.
When you’re in a full-blown hair crisis and your strands feel like crap, a great at-home remedy is a deep conditioner. It’s a quick fix to several issues, from brittle ends to dehydration to overall dull, lifeless hair. Deep conditioners have the powers sent from above to go deep into the hair shaft and deliver nutrients that revive your locks. No wonder it’s our favorite part of the wash routine.
Back in the day, you might have created your own “deep conditioner” by taking whatever conditioner you had and leaving it on your hair for an extended amount of time. But today, the range of moisture masks that target specific hair needs is far beyond what we could've dreamed of. Whether it’s frizz, heat-damage, or breakage due to chemical treatments, there’s a deep conditioner out there for you—and for all hair types too.
Best Overall: Olaplex No. 5 Bond Maintenance Conditioner
Most hairstylists swear by the Olaplex code and often use the brand’s whole system to revive dull, color-treated strands. In spite of its reputation though, it’s not only great for those who dye their hair. This at-home mask works overtime to re-link all broken hair bonds and add lustrous shine. (It's also a favorite of Byrdie's senior editor, Hallie Gould.)
Best for Damaged Hair: Kérastase Resistance Mask for Damaged Hair
Your hair doesn’t have to be super-damaged to use a deep conditioner, but in cases where it is, this Kérastase option is a total pick-me-up. The aqua bottle is packed with refreshing, rebuilding, and revitalizing hair benefits. Case in point: its ceramides and pro-keratin ingredients, which aid in the building and smoothing of the hair follicle and leave your strands looking impossibly shiny.
Best for Fine Hair: Christophe Robin Regenerating Mask
A great option for anyone with fine, limp hair, this regenerating mask from famed French hairstylist Christophe Robin has the ability to add body and thickness. It’s chock-full of plant ceramides that work to restructure the core of the hair, making it stronger from the inside out. Take your time with this product—after shampooing, take a small amount and massage it onto your scalp, adding water as you continue to massage it in. Then, rinse it out for the softest strands ever.
Best for Color-Treated Hair: Briogeo Don't Despair, Repair! Deep Conditioning Mask
I admit that when I first picked up this Briogeo deep conditioning mask, I didn’t expect my hands to reach for it every single week when it was wash-time—but that's exactly what happened. The Nova-complex of transformative nutrients in this formula leaves my 4C, kinky and tightly-coiled hair so healthy-feeling, that I just want to touch it all day. And it’s perfect for treated hair.
Best for Frizz: The Mane Choice Herbal Hair Tonic & Soy Milk Deep Hydration Mask
Not many of us actually have the time or tools to sit under a dryer for a true deep conditioning session. For a similar effect, this product actually recommends that you leave it on your hair for up to one hour and cover your hair with a plastic cap—no heat required. The promised results are improved elasticity and soft, frizz-free hair. Upon testing, we can say it delivers on its promise.
Best for Curly Hair: Rene Furterer Karinga Ultimate Hydrating Mask
A defining, penetrating conditioner for textured, kinky, coiled, and frizz-prone hair, this heavy formula literally coats your strands like a cream mask. The formula provides deep hydration, helping to repair previous damage and boost hair bonds.
Best Budget: Aussie 3 Minute Miracle Moist Deep Conditioner
No lies were told when “miracle” was planted into the title of the three-minute magic formula of a conditioner. Ideal for all hair types—but especially amazing on dry, fine hair—this potion’s aloe, jojoba, and sea kelp combination instantly transform tired hair into silk.
Runner-Up, Best Budget: Verb Ghost Hair Mask
VERB's quality is shocking for the brand's affordability. One of our favorite products they sell is their Ghost Hair Mask, which is great on any texture of hair from straight to coily. It's light so it won't weigh down your hair after use, and the combination of moringa seed oil and glycerin moisturizes and nourishes hair.
Best for Relaxed Hair: Davines NouNou Hair Mask
Aussie brand Davines is about as sustainable as they come, and while that's a major perk of the brand, there's no sacrifice in efficacy. While some other nontoxic hair brands may leave you with straw-like strands even after deep conditioning, Davines uses tomato extract to prevent the common pitfall. The mask also helps detangle, which makes it a godsend.
Best Korean Beauty: Beigic Damage Repair Treatment Mask
You've heard about K-beauty, but what about K-haircare? This mask from Korean skin-and-hair brand Beigic is vegan and made without silicones, so truly anyone—even people with sensitivities—can use it. What is in it? Green coffee bean oil for healthy follicles and protection, argan oil for moisture, and D Panthenol to reinforce damaged strands.