"my hair looks like glass and I didn't even try that hard" Jenna P
"tried so many oils that left me greasy by noon. this one just looks shiny" Camila R
"flat ironed this morning and my hair still feels soft by night" Tiana M
"humid day and way less poof than normal. kept checking the mirror" Brooke H
"ok I thought the PDRN thing was hype. my hair feels different though" Sasha K
"my ends were so dry and straw like. they feel soft again" Dana L
"smells clean, not strong, not perfumey. I keep smelling my hair lol" Marisol V
"you need like a few drops. this bottle is gonna last forever" Hailey W
"curly girl here and it didn't weigh my curls down at all" Imani J
"my coworker asked what I changed. I said the oil" Rachel O
"bought it because of the 365 day guarantee. not sending it back" Nadia F
"my hair looks like glass and I didn't even try that hard" Jenna P
"tried so many oils that left me greasy by noon. this one just looks shiny" Camila R
"flat ironed this morning and my hair still feels soft by night" Tiana M
"humid day and way less poof than normal. kept checking the mirror" Brooke H
"ok I thought the PDRN thing was hype. my hair feels different though" Sasha K
"my ends were so dry and straw like. they feel soft again" Dana L
"smells clean, not strong, not perfumey. I keep smelling my hair lol" Marisol V
"you need like a few drops. this bottle is gonna last forever" Hailey W
"curly girl here and it didn't weigh my curls down at all" Imani J
"my coworker asked what I changed. I said the oil" Rachel O
"bought it because of the 365 day guarantee. not sending it back" Nadia F
Skip to product information
Rosemary Silk Hair Oil
★★★★★ Rated 4.8 Excellent 4,058 Reviews

Glass hair.
Even after the flat iron.
No greasy finish.

Rosemary, PDRN and 31 amino acids and proteins in one lightweight silk oil. It goes on before the heat and leaves shine, not grease.

Heat Protection to 464°F
Frizz Control in Humidity
Glass Like Shine
Silky, Smooth Feel
Lightweight, Not Greasy
Made for Every Hair Type
365 day money back guarantee. Don't love it? Every penny back. No shipping it back, no questions.
Before you style: a few drops through damp or dry hair, mid lengths to ends. Then flat iron, blow dry or curl.
Refills Ship Every 30 Days Stop or Cancel Anytime

Purify® Rosemary PDRN Silk Hair Oil is the lightweight silk oil you put on before the heat.

100 ml / 3.38 fl oz of rosemary, PDRN and 31 amino acids and proteins in a concentrated oil that leaves strands soft and smooth without a greasy feel. Heat protection up to 464°F. Low irritation tested. Made for straight, curly, coily and damaged hair.

Clinically tested for frizz control in hot and humid conditions [CONFIRM RESULT AND SOURCE BEFORE PUBLISHING].

Glass hair starts before the heat, not after.

You've tried the oils. Maybe the heavy one that had your hair looking greasy by noon. Maybe the drugstore serum that smelled amazing and did nothing by day two. Maybe the viral one everyone swore by.

And you still flat iron. So the ends still look dry, the frizz still shows up the second it's humid, and your hair still doesn't look like the hair in the videos.

You didn't pick the wrong oil. You put it on at the wrong time.

Every strand is covered in tiny overlapping scales called the cuticle. Heat styling lifts and roughens them. Rough scales scatter light, which is why hair looks dull. They also grab moisture from the air, which is why it frizzes. Most oils are finishing products. They go on after the heat, once the surface has already taken the hit.

Purify® goes on before. In scanning electron microscope images from P&K Skin Research Center, strands styled without oil showed visibly rough, lifted cuticles. Strands styled with the oil looked noticeably smoother.

Rosemary leaves hair with a soft, healthy looking finish. PDRN cares for weakened, damaged looking strands. 31 amino acids and proteins support hair bonding for stronger, smoother looking strands.* All in a lightweight oil that doesn't sit on top and make you look greasy.

Same heat tool. A completely different result.

*The information above pertains only to the characteristics of the raw materials.

  • ✓ Heat protection up to 464°F for flat irons, curling irons and blow dryers
  • ✓ Smooths the look of the cuticle for a glass like shine
  • ✓ Helps control frizz in hot and humid weather
  • ✓ Leaves hair soft and silky without a greasy feel
  • ✓ Cares for dry, damaged looking hair, ends included
  • ✓ Works on damp or dry hair
  • ✓ Rosemary for a soft, healthy looking finish
  • ✓ PDRN and 31 amino acids and proteins that support hair bonding for stronger, smoother looking strands
  • ✓ Low irritation tested. Made for straight, curly, coily and damaged hair

A few drops, before you style. Warm them between your palms, then work through the mid lengths and ends of damp or dry hair. Skip the roots. Then flat iron, blow dry or curl as usual.

Less is more. Too much is the one way any oil looks greasy. Start with a few drops and add more only if your ends still feel dry.

What to expect:

  • First use: Shine and softness the first time you style. This is the early win most reviewers mention.
  • Weeks 1 to 2: Hair feels smoother day to day. Styling goes easier, and humid days are less of a fight.
  • Week 3+: With regular use, ends look and feel healthier and heat styling leaves less of a mark.
  • Month 3+: The reason we give you 365 days, not 30. Hair care deserves a real trial.

Honest note: this is a styling oil. It protects and smooths the hair you have. It does not make hair grow.

Store cool and dry. External use only. Avoid contact with eyes. If you have a sensitive scalp, patch test first.

Yes. Every Purify® order is backed by our 365 day money back guarantee.

Don't love it? Every penny back. No shipping it back. No questions.

Hair oil shouldn't be a gamble. You've already paid for the greasy ones that didn't deliver. You get a full year to try this one on every flat iron day, every humid day and every bad hair day.

Why Purify® Is Different
From The Oil That Left You Greasy

Pre Heat
Protection
Frizz Control
Tested
Low Irritation
Tested
31 Amino Acids
and Proteins
Not Greasy
All Hair Types
Straight to Coily
Damp or Dry Hair
Rosemary and PDRN
365 Day Guarantee

Customer Backed.
Styling Tested. Real Results.

Here's what customers reported after using Purify® before heat styling.

Shinier Hair

0%

Of customers said their hair looked shinier after styling

Less Frizz

0%

Of customers said frizz was easier to control on humid days

Softer Hair

0%

Of customers said their hair felt softer and smoother

Recommended

0%

Of customers would recommend Purify® to a friend

★★★★★

What Everyone's Saying

From women who flat iron, blow dry and curl every week, and were done with oils that left them greasy. In their own words.

5.0 ★★★★★

"ok so i have fine hair and every oil i've ever bought has me looking like i haven't showered by noon. the salon one, the drugstore ones, all of them. i only tried this because of the 365 day thing, figured worst case i just get my money back. put like 3 drops on my ends before blow drying and my hair just looks shiny. not wet. not heavy. i keep touching it. still waiting for the catch honestly"

CB
COURTNEY B.
✔ VERIFIED CUSTOMER
Not Greasy Burned Before
5.0 ★★★★★

"I flat iron every other day for work so my ends are always fried. Put this on before the iron for two weeks now. Hair looks glassy. Like actually. It was 85 and humid on Saturday and I still had a little frizz at my hairline, not gonna lie to you, but way less than normal and the rest stayed smooth till night. Smells clean too. Not that perfumey thing."

AD
ASHLYN D.
✔ VERIFIED CUSTOMER
Flat Iron Days Humid Weather
5.0 ★★★★★

"every other tiktok hair thing has been hype for me so i went in annoyed. looked up what PDRN even is and honestly the whole salmon thing made me laugh. didn't change my mind either way. what changed it was the second time i used it before flat ironing and my hair did not look dull after. idk if its the PDRN or the rosemary or what. i just know my hair looks better and im not mad about it"

MT
MONIQUE T.
✔ VERIFIED CUSTOMER
Skeptic Convert Not Just Hype
5.0 ★★★★★

"Growing my hair out for a year and my ends were so dry and straw like that I almost cut it all off again. Not saying this is magic. But I use it every time before heat now and my ends feel soft instead of crunchy, and I don't dread the flat iron anymore. Only gripe is the smell fades fast. Like an hour. Still smells nice while it lasts."

GL
GABBY L.
✔ VERIFIED CUSTOMER
Softer Ends Growing It Out
4.0 ★★★★☆

"4C here. Scared to put another oil on my hair because most of them either sit on top or make my twist outs look greasy. First time I used way too much and yeah it looked heavy. Second time a few drops on my ends only before I stretched it with the blow dryer and it was soft, shiny, no weight. Learn from me. Less is more."

WS
WHITNEY S.
✔ VERIFIED CUSTOMER
Coily Hair Less Is More
5.0 ★★★★★

"Not gonna pretend it's the cheapest oil i've bought. I kept it in my cart for a week lol. The 365 day guarantee is what got me to click. A few drops per use and the bottle is still more than half full after about 6 weeks, so the math works out better than the little bottles i used to keep rebuying. Not sending it back."

EK
ERIN K.
✔ VERIFIED CUSTOMER
Worth It 365 Day Guarantee
The Silk Oil · A Few Drops Before Heat

What You Actually Get
Back With Purify®.

Not promises. Not a miracle. What customers consistently report from using it before they style, and what keeps them reaching for it.

Most oils sit on top of your hair. That is what makes it look greasy by noon. This is a lightweight silk oil, built to leave strands soft and smooth without a greasy feel. When the surface of each strand lies smoother, light bounces off it evenly, so hair looks glossy instead of oily. Use a few drops on the mid lengths and ends, never the roots. Most customers say the shine shows up the very first time they style.*
Every pass of a flat iron lifts and roughens the outer layer of the strand, and that is where dullness and frizz start. Purify® goes on before the flat iron, curling iron or blow dryer, with heat protection up to 464°F. In scanning electron microscope images from P&K Skin Research Center, strands styled with the oil looked noticeably smoother than strands styled without it. You keep your routine. It just stops costing you as much shine every time you plug the tool in.*
Humid air gets pulled into rough, lifted strands and the hair puffs up. A smoother surface gives frizz less to grab onto. In a clinical trial run by Global Institute of Dermatological Sciences, one use improved frizz control in hot and humid conditions [CONFIRM RESULT AND SOURCE BEFORE PUBLISHING]. The honest part: no oil beats every humid day. What customers describe is less frizz, and hair that holds its smoothness longer into the day.*
If you're growing your hair out, the flat iron is what you start to dread: ends that look dry and rough after every session. Rosemary leaves a soft, healthy looking finish. PDRN cares for weakened, damaged looking strands. 31 amino acids and proteins support hair bonding for smoother, stronger looking strands. It will not make your hair grow. It protects what you have so your styling stops undoing the work. Made for straight, curly, coily and damaged hair.*

*Results may vary depending on individual hair condition and routine.

365 Day Money Back Guarantee

Purify® vs.
The Oil That Left You Greasy

Plenty of oils add shine. Most stop at the finish. Here's what's different when it goes on before the heat.

Purify Rosemary PDRN Silk Hair Oil
PURIFY®
Typical
Hair Oil
Other Brands
Goes On Before The Heat
Protection Up To 464°F
Often A Finishing Oil
Added After The Damage
Lightweight Silk Finish
No Greasy Feel
Sits On Top
Greasy By Noon
Frizz Control Tested
In Hot And Humid Weather
Big Frizz Promises
No Test Shown
Rosemary + PDRN
31 Amino Acids And Proteins
Plain Oil Base
Shine And Nothing More
Straight, Curly, Coily
And Damaged Hair
Too Heavy For Fine Hair
Too Light For Thick Hair
365 Day Guarantee
No Shipping It Back
Usually 30 Days
Or Final Sale

365 day money back guarantee

Customer Reviews

First Use. Month Three. What Sticks.

4.8
★★★★★
Based on 4,058 reviews
★★★★★
"month 2 and it still works"
"ok so i kept waiting for the part where it stops working. thats how it goes with everything. first week your hair looks great and then people say your hair gets used to it or whatever. its been about 8 weeks and my hair still looks glassy after the flat iron. i flat iron twice a week. still not greasy. still just a few drops. idk what else to say. it keeps doing the thing."
Valerie · Verified Customer
★★★★★
"easiest step in my routine"
"I have 10 minutes in the morning. That's it. This takes me 5 seconds. A few drops on my ends, blow dry, flat iron, done. I stopped skipping it because there is nothing to skip. My ends look less fried since I started. Two months in and it's just part of getting ready now."
Joanna · Verified Customer
★★★★★
"didn't have to change my wash day"
"3C curls here. I didn't want a whole new routine so I just added this before I blow dry and stretch. Month 3 now. No buildup that I can tell, my curls still bounce, and my hair doesn't feel coated like it does with some oils I've tried. Smell is light which I like. That's the review."
Kenya · Verified Customer
★★★★★
"first use was nice. week 3 is when I got it"
"Being honest. First time I used it I thought ok cute, my hair is a little shinier, not mind blowing. I almost wrote it off. But by the third week my hair was just easier. Less frizz at my hairline, less crunchy ends after the iron. It's a slow build more than a wow moment, so give it a couple weeks before you decide."
Bethany · Verified Customer
★★★★★
"one bottle instead of three"
"I used to use a heat protectant spray AND a separate serum AND a finishing oil. Three bottles on my counter. This is one bottle before I style and I haven't gone back to the other two in about 2 months. Cost wise it comes out about even honestly, but I'm using way less stuff. And the 365 day guarantee made it easy to just try."
Leila · Verified Customer
★★★★★
"my stylist asked what I switched to"
"Went in for a trim and she asked what I changed because my ends looked better than last time. I told her I just put this on before I flat iron. She wrote the name down. About 3 months in. Not a miracle, my hair is still my hair, but it behaves."
Dominique · Verified Customer

Join thousands who tried the oils, the serums and the sprays that promised the world, and finally found a silk oil that goes on before the heat.

◎ 365 Day Money Back Guarantee

The Questions People
Actually Want Answered

Every oil I've tried leaves my hair greasy. Why would this be different? +
Fair question, and the one most customers asked before ordering. This is a lightweight silk oil, made to leave strands soft and smooth without a greasy feel. The one way any oil goes greasy is too much of it, or too close to the scalp. So use a few drops on the mid lengths and ends only, skip the roots, and add more only if your ends still feel dry. If your hair looks heavy the first time, you used a little too much. Use less next time.
Is the 464°F heat protection real? +
It's the heat protection rating on the bottle, and it comes from testing by P&K Skin Research Center, which included scanning electron microscope images of strands styled with and without the oil [CONFIRM TEST CONDITIONS BEFORE PUBLISHING]. Honest note: heat protection does not make heat harmless. Use the lowest temperature that styles your hair, and put the oil on before the flat iron, curling iron or blow dryer, not after.
Is the PDRN and rosemary thing real, or just a trend? +
PDRN is a trending ingredient, so the skepticism makes sense. Here is exactly what we claim and what we don't. Rosemary leaves hair with a soft, healthy looking finish. PDRN cares for weakened, damaged looking strands. 31 amino acids and proteins support hair bonding for smoother, stronger looking strands.* This is a styling oil. It is not a hair growth treatment and we don't claim it makes hair grow. PDRN is commonly sourced from salmon DNA [CONFIRM SOURCE AND ALLERGEN INFORMATION FROM YOUR INGREDIENT LIST].

*The information above pertains only to the characteristics of the raw materials.
How much do I use, and when? +
A few drops, before you style. Warm them between your palms and work them through the mid lengths and ends of damp or dry hair. Skip the roots. Then flat iron, blow dry or curl as usual. Fine hair needs less. Thick, curly or coily hair can take a little more. You can also smooth a drop over dry ends later in the day for extra shine.
How long before I notice anything? +
Most people notice shine and softness the first time they style. Over the first couple of weeks hair tends to feel smoother day to day, and humid days get easier. With regular use, ends tend to look and feel healthier. Some people feel a big difference right away, others a few weeks in, and both are normal. Give it a couple of weeks before you decide.
Will it work on my hair type? +
It's made for straight, curly, coily and damaged hair. If your hair is fine, start with one or two drops on your ends and build up. If your hair is thick, curly or coily, start with a few drops and add more where it feels dry. If it feels heavy, you've used too much. Use less next time.
Is it safe for sensitive skin? Any side effects? +
It's been low irritation tested [CONFIRM TEST DOCUMENTATION BEFORE PUBLISHING]. It's for external use only. Avoid contact with eyes. If you have sensitive skin or known allergies, check the ingredient list on the bottle and patch test a small amount first. If you notice irritation, stop using it and talk to your doctor or dermatologist.
When will it arrive? +
Orders ship within 24 to 48 hours, and most customers receive theirs within 5 to 7 business days in the US. Free shipping on every order. You'll get a tracking link by email the moment your order ships. Store it at room temperature, out of direct sun.
What if it doesn't work for me? +
Every order is backed by our 365 day money back guarantee. Try it on every flat iron day, every humid day and every bad hair day for a full year. If at any point your hair and the mirror don't agree, for any reason, email us and we send every penny back. No shipping it back. No questions. After a counter full of oils that left you greasy, you shouldn't have to gamble on this one too.