Treat + Style
Custom Hair Oil
A nurturing oil and a true multi-tasker, Prose Custom Hair Oil can be used as a treatment before washing, a styling primer, or as a finishing touch. No matter your preference, this premium oil helps tame flyaways, smooth unwanted frizz, and seal in moisture for boosted hydration.
Silicone-free
Made with natural oils
Prevents damage and color-fading
Developed for both wet and dry hair
1.7 fl oz
Love your first order (or it’s on us)

A personalized hair oil,
made to order just for you
Every hair oil we formulate is personalized to 80+ factors from your in-depth consultation. Analyzing everything from your hair type to your zip code, we’ll create a formula tailored to your one-of-a-kind needs. Below are just a few examples from the millions of possibilities.
Get your formula
Hair Oil tip #421
Start with your smallest recommended amount, and build up as you go to avoid a too-slick look.

A hair oil with naturally powerful + proven-effective ingredients
Every ingredient in your Custom Hair Oil is rigorously researched, backed by science, and precisely selected to target your unique hair goals and concerns. We responsibly source only the clean ingredients you need — nothing more, nothing less.
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
Personalization Works Better™
Take our consultation
We’ll analyze 80+ factors—from what you eat to where you live—to understand the unique needs of your hair.
Your formulas are made to order
Our AI-powered algorithm personalizes your products + routine, carefully selecting from 185+ clean ingredients to meet your goals.
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 an always-custom fit.
Frequently asked questions
What does hair oil do?
Prose Custom Hair Oil helps to recreate the hair’s natural lipid layer, which protects strands from damage, dryness, and unwanted frizz. By forming a protective film around the fiber, it strengthens the waterproof barrier of the cuticle and rebalances hydration to bring back shiny and soft lengths.
We believe the best hair oil is one that is personalized to your unique needs. Take the consultation to find your formula.
How do you use hair oil?
Our Custom formulation is a true multi-tasker. Here are a few simple tips and tricks on how to use hair oil:
As a styling oil: Begin with wet or dry hair and use a few drops to tame unwanted frizz and smooth flyaways.
As a treatment: Warm 5-15 drops in palms and apply to dry hair, focusing on lengths and ends. Leave on for up to 30 minutes before rinsing with shampoo.
As a color primer: Apply before your next hair color treatment, whether at home or in the salon with your stylist. Be it ombré, balayage or highlights, Custom Hair Oil will help strands hold onto their natural oils.
As a refresher: Add a few drops to lengths for instant moisture and shine between washes.
What are the benefits of hair oil?
Let us count the ways. From lengths to ends, Prose Custom Hair Oil helps to tame flyaways, smooth unwanted frizz, and seal in moisture to nurture and hydrate dry and damaged hair. Made with precious natural oils, it's a luxurious and personalized upgrade to off-the-shelf alternatives that don’t account for your specific needs and preferences.
How often should you oil your hair?
Great question. It really depends on how you’re using the product and on your specific hair needs and styling preferences. For example, you can use your Custom Hair Oil as a deeply reparative “hair oiling” treatment once or twice a week for a boost of nourishment to dry, stressed strands. On the other hand, you might use a few drops to tame unwanted frizz and smooth flyaways in your daily styling routine.
Keep in mind that we’ll always provide a detailed guide on how to use your Custom Hair Oil, tailored to your unique needs and hair goals.
Is Custom Hair Oil suitable for all hair types?
Absolutely. Every hair type can benefit from Prose Custom Hair Oil. Each blend is personalized to 85+ factors and formulated to target your specific hair needs and styling preferences.
No matter your hair type or texture — be it fine and straight or thick and curly — your unique formula will provide just the right amount of hydration and nutrition without ever weighing down your strands.
Does custom hair oil contain fragrance?
The choice is yours. You can select either a fragrance-free hair oil or a scented oil, depending on your preferences.
Our fragrance-free Custom Hair Oil contains no perfume, alcohol, or added fragrance, but it may have a slightly sweet, nutty, or neutral scent depending on your unique blend of ingredients.
If you opt for fragrance in the consultation, your Custom Hair Oil will come with “Solstice” — a warm and gourmand fragrance, with notes of Vanilla, Caramel, and Musk. The scent is exclusive to Hair Oil.