12 Styling Products I Swear By For Smooth, Sleek Hair — Even in Peak Summer Heat

While I do use this Bumble and bumble Bb. Curl (Style) Anti-Humidity Gel-Oil ($30) year-round, it's essential in my summer routine. It's got a blend of babassu, brazil nut, and pracaxi oils along with cupuacu butter that all deeply hydrate my hair (and lock that moisture in), but its gel-like texture also defines and holds curls even in the hottest weather.

Leave-in products are especially helpful as I don't wash my hair several times a week (and definitely don't blow-dry or flat-iron it multiple times). Instead, I lean on creams like this Reverie Milk Anti-Frizz Leave-In Nourishing Treatment ($42) for added conditioning between shampoos. This one gets its power from essential oils and plants like coconuts, olives, and almonds, and it helps detangle straight out of the shower plus reduces frizz when I'm dry-styling, too.

A good leave-in conditioner is also key to helping hair not become brittle and break easily. This top-rated Mizani 25 Miracle Milk Leave-In Conditioner ($22-$34) can work as a primer before blowouts but also can help repair sun-damaged, dry hair with a few sprays as it makes my hair smoother before I even step outside.

I love that this Bumble and bumble Hairdresser's Invisible Oil Heat and UV Protective Primer ($13-$28) has UV filters inside to protect against the sun's rays. It also makes my hair feel super smooth — thanks to the six hydrating oils inside — but it doesn't feel greasy when it's spritzed on. (I also bring the bottle with me on beach days for that sun protection and also its detangling magic if I take a dip.)

Living Proof Perfect Hair Day Night Cap Overnight Perfector ($29) works while I'm fast asleep so what could be easier than that?! I just put it on before bed, pull back my hair, and the amino acids, antioxidants, and time-release conditioners hydrate and revitalize, with no need to rinse it out in the morning either. This product also helps seal cuticles, protects colour, and makes my hair less frizzy . . . plus, it doesn't get all over my sheets and pillowcase either (with results lasting up several days after application).

This Kérastase Discipline Blow-Dry Smoothing Primer ($22-$37) protects hair against a full range of environmental aggressions like heat and pollution, no matter the season. I like that it revitalizes my often-frizzy hair with keratin and ceramide in summer, so it's healthy on the inside and smooth on the outside, too.

I regularly use the iconic Moroccanoil Moroccanoil Treatment ($15-$44) when I want to add a boost of shine and softness. The nutrient-rich argan oil inside hydrates, and I've seen a decline in my hair's tendency to frizz as time goes on, especially on the ends.

I find that many hairsprays dry out my hair but this Alterna Haircare Caviar Anti-Ageing Working Hairspray ($21-$30) is packed with nutrients that moisturise and strengthen my hair, while also locking in a sleek style. There's omega-3-rich caviar extract, hydrating seasilk, and a special age-control complex to protect against hair's natural ageing (and to help undo negative side effects cause by chemical and environmental ageing as well).

The top-rated Shu Uemura Essence Absolue Nourishing Taming Overnight Serum ($69) is a rich oil that provides a ton of moisture to dry hair. Its magical ingredient is red camelia oil, which nurtures hair overnight so it's smooth and protected once the sun rises. I don't rinse this product out and find it leaves my hair shiny (not greasy) and well-hydrated even after a long period in the sun.

This Moroccanoil Smoothing Lotion Mini ($14) works wonders when I'm blow-drying my hair. Not only does it get my hair sleeker when the dryer's on, its vitamins and argan oil also protect against humidity once I step outside (which is very important in the NYC heat).

Kérastase Elixir Ultime Oil Serum ($24-$50) protects my hair from the breakage that happens when it dries out in humid air. This product instantly makes my hair super-shiny after styling (with maize and procaxi oils inside), but I also like to use it as pre-shampoo to help remove impurities and buildup before cleansing.

The rich Mizani 25 Miracle Cream ($22) defines my style so I can actually see each individual curl when I air dry . . . and not just a tangled mess. It also adds moisture with coconut oil to my colour-treated hair and extra UV protection, too.

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