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Keeping natural black hair straight in humid weather can be tricky, but it's entirely possible! You can do plenty of things to keep your hair straight, from using anti-frizz oils to easy nighttime rituals that'll prep your hair for the next day. If you're unsure where to start, don't worry: we've got all the information you need to rock straight hair no matter the weather.

2

Use an anti-frizz serum in your hair.

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  1. Moisture can cause your hair to frizz, so these products can be a huge help on humid days. Look for anti-frizz serums designed to work with straightened hair and apply your product after getting out of the shower with clean, damp hair. [2] Each recommended serum below will keep your hair sleek and shiny all day.
    • Garnier Whole Blends Smoothing Oil : This oil is ideal if the ends of your hair are dry, but your scalp tends to get greasy quickly. Because this smoothing serum absorbs into your hair, it leaves no trace of greasiness around your roots.
    • Cantu Super Shine Hair Silk : This serum's lightweight formula will keep your hair smooth and strengthen it at the same, protecting it from split ends.
    • Nubi Anti-Frizz Hair Serum: If you have a dry or itchy scalp, this serum will moisturize your head as well as your hair—ensuring both remain healthy.
3

Apply a heat protectant before using any heat tools.

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  1. When you're about to use a heat tool, spray the protectant evenly over your whole head of hair first. [3] Excess moisture isn’t the only thing that causes frizz—overly dry and damaged hair is less likely to stay straight, too. That’s why heat protectants are so important!
    Jen Atkin, Hairstylist

    Use heat protectants and other nourishing products. "Make sure that you’re protecting the hair and not creating more damage with extreme heat. "

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5

Use a flat iron to straighten your hair.

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  1. Use the chase method to straighten your hair and eliminate frizz. First, thread a bunch of hair with a fine-tooth comb near the top of your head. Then, position the flat iron behind the comb and pull both down, so that you're combing your hair from root to tip and chasing the comb with the flat iron. [4] Repeat the movement for each section of hair until it's all straight!
    • Keep the flat iron's temperature between 350 °F (177 °C) and 450 °F (232 °C), and only go over your hair with the flat iron once to avoid damaging it.
    • Flat iron your hair only once every time you wash it and touch up frizzy spots once per wash too. You don't need to go over your whole head; just apply some heat protectant and fix the problem areas as needed.
    • You can also opt for a professional silk press treatment to straighten your hair at a salon.
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7

Put your hair in a bun.

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  1. On a humid day, pull your hair back into a loose bun to shield your hair from the worst moisture. Often, this will be enough to keep your hair frizz-free until the humidity subsides (or you get away from the humid weather). [5]
    • You could also try a ponytail or braid if you prefer either style.
    • You only need to keep your hair in the bun while exposed to the humidity. You can always let your hair down if you enter a climate-controlled indoor space.
    • In some areas, mornings are more humid than afternoons. Check your local weather to see if you can let your hair out of the bun in the afternoon.
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9

Stay away from water-based products.

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10

Use less heavy hair products.

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  1. Natural hair typically benefits from moisturizing products and heavy styling cream, but this isn't the case for straightened hair. Heavy butter or creams will decrease the time your hair stays straight. [8] Sticking to small amounts of your usual products will keep hair from drying out without making it curl.
    • If your hair frizzes up a bit during the day, don't add more heavy product. Instead, rely on your oils and hair wrap to set it straight again.
11

Wear a shower cap.

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  1. Since you'll likely need to shower every couple of days, wrap your hair up with a silk or satin scarf and place a shower cap over it. The shower cap will block water, while the scarf will stop stray moisture from getting into your hair. [9]
    • Other ways to protect your hair from water and humidity include pinning it up on a beach or pool day and using an umbrella during rainy weather.
    • Make sure to wash your hair once a week without the shower cap. Going multiple weeks at a time without washing your hair can strip it of nutrients and dry it out too much.
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14

Check the humidity before straightening your hair.

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