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We evaluated how each one helped repair split ends or manage breakage.

A portrait of a young woman after washing her hair with a towel wrapped over her head.

FreshSplash

While shampoo and conditioner are hair wash staples, a deep conditioner is generally a bonus treatment.

A deep conditioner is especially helpful to add some pliability to strands to prevent breakage.

What are the benefits of using a deep conditioner?

JVN Undamage Strengthening Conditioner

More moisture and a smooth cuticle help reduce frizzy hair and pesky flyaways.

The added hydration prevents breakage and helps to keep color vibrant too.

How often should someone use a deep conditioner?

Shea Moisture Deep Moisturizing Conditioner

How often you use a deep conditioner is up to you and your hairs needs.

As a minimum, it is good to use once a month as an extra hair treat.

How do deep conditioners differ from hair masks?

Eva NYC Therapy Session Hair Mask

These are especially beneficial for anyone with color-treated, keratin-treated, or dry hair.

I loveJVN Undamage Strengthening Conditioner.

Im left with soft, hydrated lengths with shine and movement.

Glamour contributor Jamie Wilson testing Eva NYC Therapy Session Hair Mask

It provides great slip and makes for a seamless detangling process.

This mask nourishes my dry strands to prepare them for styling again.

Simply add to wet or damp hair, and leave for two to five minutes before rinsing out.

Advanced Intensive Curl Perfecting Masque

Its never a bad curl day when I use this goop!

This is even more amplified when bleaching hair.

That was six years ago, and I have yet to test another mask that can compare.

Briogeo Don’t Despair Repair Deep Conditioning Mask

While I have fine hair, the rich, creamy consistency doesnt weigh it down whatsoever.

The refreshing scent makes the 10-minute treatment more enjoyable too.

I think it took me close to two years to get through the full thing.

Briogeo Don’t Despair Repair Deep Conditioning Mask

Best for Fine Hair:Olaplex No.

8

Olaplexs No.

8 is the best choice if you really need a deep dose of moisture.

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8, says beauty editor and writerDaise Bedolla, who has wavy hair.

I love the texture of this product and work it down my hair shaft, avoiding my scalp.

Whenever I get compliments on my hair, its usually because I used this mask, Noble says.

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These adaptogenic ingredientslikeashwagandhacreate a holistic hair treatment that helps curb damage, reduce frizz, and soften strands.

When this happens, hydrating products that penetrate strands and lock in moisture are whats needed.

I love adding this conditioning treatment to my hair while Im shaving or doing abody scrubto multitask.

The Best Sunscreens for Oily Skin, According to Dermatologists

Not to mention, its mango scent is downright alluring.

But its lightweight, so it doesn’t sit and overpower my hair, she says.

I heat-style my hair, and it can get dry from time to time.

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This mask is a perfect reset for my hair, she says.

It deeply nourishes and hydrates, and helps to reduce breakage and those dreadedsplit ends.

The mask is superrich, and my hair just drinks it up.

Olaplexs No. 8

My hair looks so shiny and bouncy after styling.

Without a healthy scalp,hair growthand great styling are going to be difficult.

Plus its color-safe and smells amazingjust faintly floral and clean.

Native Deep Strengthening Hair Mask

Glamour contributor Jamie Wilson testing Native Deep Strengthening Hair Mask

Rōz Foundation Mask

Shaz  Kiks Nourishing Naram Conditioner

TPH by Taraji Mask On Conditioning Hair Mask

Glamour contributor Jamie Wilson testing TPH by Taraji Mask On Conditioning Hair Mask

Moroccan Oil Weightless Hydrating Mask

Color Wow Money Mask

Balmain Moisturizing Repair Mask

Cantu Deep Treatment Mask

Maria Nile Head  Hair Heal Masque

Glamour contributor Daise testing Maria Nile Head  Hair Heal Masque