Up to 3x stronger hair + less breakage after one use

*Instrumental test of Prose Custom Shampoo, Conditioner & Hair Mask, vs non-conditioning shampoo

Custom Hair Mask

8.5 fl oz 250mL Read Reviews
600K+ 5-star haircare reviews

A deeply hydrating, personalized hair mask that restores + strengthens hair from lengths to ends.

$49.00
$19.60
for 60% off your first order + a free gift

15% off every future order
• Free shipping, always
Cancel or modify anytime
• Refills on your schedule

Buy once
$49.00

Get your formula
Takes under 10 minutes
personalization works better®

Prose Custom Hair Mask is an intensive pre-shampoo treatment personalized to your unique hair goals. Concentrated and conditioning, it smooths, repairs, and provides up to 3x stronger hair and less breakage after just one use.*

*Instrumental efficacy test of Prose Custom Shampoo, Conditioner & Hair Mask vs. non-conditioning shampoo.

*Instrumental efficacy test of Prose Custom Shampoo, Conditioner & Hair Mask vs. non-conditioning shampoo.

8.5 fl oz 250mL

Color-safe
Keratin-safe

HOW PROSE DOES CUSTOM

01
Take our haircare consultation
We’ll analyze 85+ factors — from what you eat to where you live — to understand the unique needs of your hair and scalp.

02
Your formulas are made to order
Our AI-powered algorithm creates your personalized formulas + recommended routine, carefully selecting from 185+ clean ingredients to meet your hair goals.

03
As you change, so does your Prose
We’ll address any new concerns, adjust your formulas with the seasons, and learn from your feedback for better hair with every order.

SCIENTIFIC RESULTS

In a rigorous external study on Custom Hair Mask, we tested its effectiveness across a range of hair textures.

Up to 3x stronger hair after one use*

*Instrumental efficacy test of Prose Custom Shampoo, Conditioner & Hair Mask vs. non-conditioning shampoo.

EXCLUSIVE FRAGRANCES

During the consultation, you can choose an exclusive fragrance from our clean, 100% vegan collection — or opt for fragrance-free.

arcadia
Grapefruit, Basil, Cedar

botanica
Eucalyptus, Rosemary, Lavender

corsica
Anjou Pear, Peony, Cedar Wood

meleni
Mango, Melon, Lush Greens

oasis
Jasmine, Amber, White Peach

prelude

Fragrance-Free
cruelty free
peta approved
alcohol free
sulfate free
paraben free
mineral oil free
phthalate free
gmo free
available fragrance-free
silicone-free options
vegan options

Naturally powerful ingredients, picked just for you

Below are just a few possibilities. Your Custom Hair Mask is made to order using a unique blend of only the clean, proven-effective ingredients your scalp needs — nothing more, nothing less.

Acacia Collagen

to help protect and hydrate damaged hair.

Hyaluronic Acid

to lock in moisture and soften strands

Shea Oil

to nourish and care for dry, stressed strands

Avocado Oil

to smooth lengths and help seal split ends

Argan Oil

to help nourish and soften dry, damaged hair

Oat Lipids

to help maintain and support high-shine color

Mango Butter

to help detangle hair and repair split ends

Castor Oil

to help condition, hydrate, and strengthen hair

Sunflower Oil

to prevent color-fading by sealing the hair cuticle

How to use

A hair mask as unique as you are

Each Custom Hair Mask includes directions tailored to your specific hair, goals, and concerns — from breakage to split ends. Below is just a guide.

Amount As needed, based on hair length, texture, and density.

Directions

1. Begin with damp hair.
2. Apply desired amount to ends, avoiding roots. Leave on for 5–30 mins, depending on hair type.
3. Rinse with warm water and follow with your Custom Shampoo.

Pro Tip: After applying, cover with a shower cap for a deeper treatment or clip up hair for mess-free application.

Real people, real reviews

See what people are saying about Custom Hair Mask on Review & Refine®. Our unique feedback tool gathers validated customer reviews for always-improving results.

★★★★★
I absolutely love this product and can't live without it. I use it more frequently than suggested as my hair is super dry, and it helps so much with strength, shine, and smoothness.
Dana D.
Vancouver, BC
3/26/2024

★★★★★
I think I had more damage than I realized and I'm pretty sure this hair mask is what is making such a difference in how much healthier my hair feels!
Camille F.
Middleton, ID
4/30/2024

★★★★★
Smells SO GOOD and does not weigh my hair down. My hair itself is very fine but I have a lot, so the density is high. I am usually afraid of any moisturizers on my hair feeling heavy and sticky but this washes out beautifully, leaving my ends mended and soft but still flexible.
Riley G.
Seattle, WA
4/29/2024

★★★★★
There is a very significant difference in my ends when I use the hair mask: smoother, shinier, overall healthier/less damaged, and much easier to style.
Madison W.
Forest, VA
5/23/2024

★★★★★
Love this hair mask! It provides my hair a nice pre-wash base for the shampoo. I have tried washing my hair without the mask and definitely noticed a difference. The mask is a must for a good hair wash!
Talia O.
Winnipeg, MB
6/11/2024

★★★★★
I do love the pre-shampoo hair mask. It really hydrates my ends, especially having fine hair and recovering from previous bleaching. The new growth is healthy.
Aria D.
Irvine, CA
8/20/2024

★★★★★
I was incredibly surprised with how silky this makes my hair feel. I almost hate shampooing/conditioning after because when I rinse out my hair, it feels SO good. Detangling, with this product alone, is a breeze. I don't have to spray anything in my hair to get the snarls out when I use this.
Celeste Z.
Madisonville, TN
11/10/2024

★★★★★
Love the pre-shampoo hair mask! For me this is a brilliant product as my hair is very fine and tangles easy, I feel this helps boost the moisture and helps with detangling. I use this every other week on my ends, leave in a few minutes, and then apply the shampoo and rinse both products out.
Bianca S.
Pollock Pines, CA
7/12/2024

★★★★★
I love it so much. It could just be the thickness of the product or the fact that my hair is wet when I use it, but my hair just feels like it's being coated in a protective wrap. I got it specifically for dead and split ends, which have nearly disappeared. I think I've seen one split end in the past couple months when it used to be multiple per day.
Elowen S.
Alexandria, VA
6/21/2024

★★★★★
This stuff is like magic. It made my bleached and color-treated hair feel soft and silky again!
Kayla S.
Yellow Springs, OH
5/04/2024

★★★★★
I can easily brush my hair after using the hair mask. I’m never going back to the previous hair mask I’ve been using for 3 years.
Meredith T.
Cupertino, CA
10/07/2024

★★★★★
Oh my goodness this is INCREDIBLE. It healed my very dry and damaged hair in just one use. Every time I use it I'm even happier!
Elise C.
Tuscon, AZ
8/12/2024

★★★★
My hair mask really helped with detangling and color protection. It has made my semi-permanent hair dye last much longer, with a brighter pop of color! There's a little to be improved on for protection against split ends, but overall I'm thrilled.
Morgan A.
Henrietta, NY
2/21/2024

★★★★
It helped when it came to washing my hair. Typically, I separate my hair into top and bottom buns, and wash the sections individually. Before using the hair mask, my hair would be difficult to untangle. With it, taking the section out of its bun was less of a hassle. I also feel this made a decent impact on my hair shine and boosted some hydration at my roots. I was worried my hair looked brittle at the ends but they regained some health in the time I’ve been using it.
Naomi N.
Indio, CA
4/01/2024

★★★★
From what I have used so far, I am enjoying the hair mask. I've noticed my hair is smoother and detangles easier since using the mask. I would need to use the product more to see more long-term results on my hair.
Kiana S.
Wallingford, CT
3/29/2024

★★★
I really like the pre-shampoo mask. This is probably my favorite of all the products so far. It makes my hair feel so soft, smooth, and detangles so easily. I used to have to really comb through my hair in the shower when applying conditioner, but this instantly makes it feel smoother and softer.
Juliana S.
Reading, MA
5/30/2024

FAQs

How does my Custom Hair Mask work?

Prose Custom Hair Mask is personalized to your hair needs and uniquely formulated with the ideal level of moisturizing ingredients to hydrate, condition, and repair the lengths and ends of your hair.

What hair mask should I use?

The best hair mask you can use is one that’s suited to your hair type, porosity, density, and local climate — which makes a Custom Hair Mask the ideal choice. Environmental stressors like pollution, water hardness, and UV rays can impact the kind of care your hair needs. Your diet and lifestyle can impact your hair too, determining what nutrients your hair needs and what kind of stress it’s experiencing. We make it easy by factoring it all into your Custom Hair Mask to deliver the results you want. Take our consultation to find out what your hair needs.

How is this hair mask different from shampoo or conditioner?

Our Custom Hair Mask contains the highest concentrations of your most-needed active ingredients, making it a potent pre-wash treatment to round out your hair care routine.

Can I use this Custom Hair Mask as a leave-in conditioner?

Unlike our Custom Leave-In Conditioner, the Hair Mask should typically be left on for 5–30 minutes, as detailed in the usage instructions you receive with your products. It should always be followed by your Prose Custom Shampoo and thoroughly washed out for the best results.

Is Prose Custom Hair Mask made for all hair types?

Prose Custom Hair Masks work on straight (type 1), wavy (type 2), curly (type 3), and coily (type 4) hair. All of your Prose formulas are tailored for your individual hair density, texture, and porosity, so your hair gets the exact care that it needs — without weighing down your hair.

How often should I use a hair mask?

How frequently you use your Custom Hair Mask will depend on your unique hair needs. External factors like pollution and humidity or stress levels and hormones can impact the sebum production (AKA, the natural oils your scalp produces to nourish your hair). Your unique Hair Mask formula will take all of that into account to keep your scalp happy and balanced — and your hair healthy.

Are there any ingredients I should avoid in a hair mask?

At Prose, we only use ingredients that are high quality and highly effective. That means that every ingredient in your Custom Hair Mask has been meticulously researched by our world-class R&D team and sustainably sourced from trusted partners around the globe. And because Prose formulas are always free from anything harmful, we never use ingredients like sulfates, parabens, phthalates, mineral oil, alcohol, or GMOs.

Can Prose Custom Hair Mask treat medical conditions like hair loss or dandruff?

Prose is not intended to treat medical conditions. Our formulas are a 100% drug-free alternative to prescription products and OTC (over-the-counter) medicines. Instead, we use only the highest quality, naturally powerful and proven-effective ingredients to enhance shine, volume, hair health, and so much more.