Front of bottle of Blacklight Blonde Science Moisture 18-in-1 Beautifier 225ml

Back of bottle of Blacklight Blonde Science Moisture 18-in-1 Beautifier 225ml

Blacklight Blonde Science Hydrating Collection Explained

Two bottles of Blacklight 18-in-1 Beautifier on a light green background with product details on a purple sidebar.

Product line chart with four sections labeled HYD, REP, VIO, and BLU, each with a set of bottles and corresponding benefits.

A side-by-side before and after comparison of a woman's long dark brown hair, showing frizzy, uneven strands on the left and smoother, shinier, more uniform hair on the right. The image features 'BEFORE' and 'AFTER' text labels at the top against a clean light gray background.

Before and after comparison of a woman's hair, showing a straighter, shorter look on the left labeled 'BEFORE' and a longer, wavy, styled look on the right labeled 'AFTER'. The woman is wearing a white t-shirt against a light gray background.

Image of a Blacklight Blonde Science 18-in-1 Beautifier with product features on a purple background

Model posing in front of grey background showing her blonde hair after using Hydrating Blacklight Blonde Science Products

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18-in-1 Beautifier

$38.00 CAD

Save 25% Sitewide

For a limited time, get 25% off all full-price items with code FLASHSALE.

Your Cheat Sheet:

Best for

Suitable for all hair colors
Dry or dehydrated
Tangled or difficult to manage
Dull or prone to moisture loss

How often: Daily, on damp hair before styling
Results: Detangled, smoother hair with heat protection
Key ingredients: Hyaluronic acid, avocado, rice bran and hemp seed oils

Size: 225 ml / 7.6 fl. oz

Front of bottle of Blacklight Blonde Science Moisture 18-in-1 Beautifier 60ml

FREE GIFT On all orders $75+

FREE SHIPPING ON ALL ORDERS $49+

Easy returns 30 days, no questions asked

A lightweight, multi-benefit spray made for all hair types and colors that detangles, hydrates, and protects your hair while bringing back softness, shine, and easy styling.

About 18-in-1 Beautifier

Blacklight 18-in-1 Beautifier is made for all hair types and colors. It's a light spray that does many things at once and instantly makes your hair look and feel better. It hydrates, detangles, smooths, and adds shine while helping keep your hair and scalp balanced. Made with nourishing ingredients like avocado, rice bran, and hemp seed oils, it leaves your hair softer, smoother, and easier to style, with light moisture and protection. Perfect for easy, healthy-looking, glowing hair.

How To Use

Mist onto clean, damp hair
Comb through to distribute evenly
Blow-dry and style as desired
Follow with Shine Drops for an ultimate boost of hydration and shine

Ingredients

WATER (EAU), CETEARYL ALCOHOL, FRAGRANCE (PARFUM), PEG-12 DIMETHICONE, DIISOPROPYL ADIPATE, GLYCERIN, PHENOXYETHANOL, SILICONE QUATERNIUM-16, TOCOPHERYL ACETATE, CETRIMONIUM CHLORIDE, UNDECETH-11, PERSEA GRATISSIMA (AVOCADO) SEED OIL, ORYZA SATIVA (RICE) BRAN OIL, CANNABIS SATIVA SEED OIL, BUTYLOCTANOL, UNDECETH-5, PANTHENOL, LINALOOL, LIMONENE, TETRASODIUM EDTA, HEXYL CINNAMAL, ALPHA-ISOMETHYL IONONE, ACETIC ACID, CITRONELLOL, GERANIOL, ISOPROPYL ALCOHOL, SODIUM HYALURONATE, CITRIC ACID, SODIUM HYDROXIDE

FAQs

18-in-1 Beautifier

What does the 18-in-1 Beautifier do?
The Blacklight Blonde Science 18-in-1 Beautifier is a leave-in treatment that hydrates, detangles and protects in one step. Its 18 benefits include hydration, detangles, smooths, and adds shine. It replaces several styling products for dry or lightened blonde hair.

How do I use the 18-in-1 Beautifier?
Spray the Blacklight Blonde Science 18-in-1 Beautifier on towel-dried hair, focusing on mid-lengths and ends. Comb through and don’t rinse. Style as usual. On dry hair, a light mist refreshes frizzy or flyaway ends between washes.

Does the 18-in-1 Beautifier protect hair from heat?
Yes. The Blacklight Blonde Science 18-in-1 Beautifier protects against heat from blow-dryers, straighteners and curling irons. Apply it before every heat-styling session, especially on bleached or highlighted hair, which is more fragile.

Will the 18-in-1 Beautifier weigh down fine hair?
No. The Blacklight Blonde Science 18-in-1 Beautifier has a lightweight formula that leaves no greasy residue. For fine or thin hair, use 2–3 sprays on the ends only and skip the roots.

Can I use the 18-in-1 Beautifier every day?
Yes. The Blacklight Blonde Science 18-in-1 Beautifier is gentle enough for every wash and safe on colour-treated hair. It pairs well with any Blacklight shampoo, including the Violet and Blue toning shampoos. It was developed in our Montréal lab by the team behind Oligo Professionnel since 1986.

Still looking for help? View all our FAQs Here

Shipping & Returns

We offer free shipping on orders over $49 across Canada and the Continental United States. Orders below $49 are shipped at a flat rate of $10.

Our team will typically ship your order within 24 hours. When your package leaves our warehouse, you’ll receive an email with your tracking information.

Most customers receive their order within 2–7 business days from the date of purchase, depending on the destination.

From the Blonde Journal Why Is My Blonde Hair So Dry? (And How to Fix It)

18-in-1 Beautifier225 ml / 7.6 fl. oz

$38.00 CAD

Sulfate-Free

Paraben-Free

Gluten-Free

See the difference

Dry and parched to deeply nourished. Our hydrating products restore moisture, softness, and shine — so your hair feels healthy from root to tip.

Before

A woman with shoulder-length blonde-highlighted hair wearing a white ribbed tank top and a delicate gold necklace, photographed against a plain white background.

After

Frequently asked questions

Questions about the 18-in-1 Beautifier? Find our most frequently asked questions here. Still need help? Contact us.

What does the 18-in-1 Beautifier do?

The Blacklight Blonde Science 18-in-1 Beautifier is a leave-in treatment that hydrates, detangles and protects in one step. Its 18 benefits include hydration, detangles, smooths, and adds shine. It replaces several styling products for dry or lightened blonde hair.

How do I use the 18-in-1 Beautifier?

Spray the Blacklight Blonde Science 18-in-1 Beautifier on towel-dried hair, focusing on mid-lengths and ends. Comb through and don’t rinse. Style as usual. On dry hair, a light mist refreshes frizzy or flyaway ends between washes.

Does the 18-in-1 Beautifier protect hair from heat?

Yes. The Blacklight Blonde Science 18-in-1 Beautifier protects against heat from blow-dryers, straighteners and curling irons. Apply it before every heat-styling session, especially on bleached or highlighted hair, which is more fragile.

Will the 18-in-1 Beautifier weigh down fine hair?

No. The Blacklight Blonde Science 18-in-1 Beautifier has a lightweight formula that leaves no greasy residue. For fine or thin hair, use 2–3 sprays on the ends only and skip the roots.

Can I use the 18-in-1 Beautifier every day?

Yes. The Blacklight Blonde Science 18-in-1 Beautifier is gentle enough for every wash and safe on colour-treated hair. It pairs well with any Blacklight shampoo, including the Violet and Blue toning shampoos. It was developed in our Montréal lab by the team behind Oligo Professionnel since 1986.

I’m obsessed with this spray. It detangles instantly, adds shine, and makes my blonde feel soft, smooth, and healthy without any heaviness.

— Catherine R.

The Science

A synergistic blend of skincare actives and superfoods

Squalane

A must-have skincare active for hydration, squalane is a biomimetic, mimicking the scalp’s natural sebum to rehydrate the hair and condition coloured strands from the inside out.

Açai Extract

A superfood rich in polyphenols and omegas, açai fruit smooths the cuticle and enhances elasticity to fight the frizz lightening can cause, protecting blondes from brittle strands.

Moringa Oil

Rich in antioxidants and oleic acid, moringa oil strengthens blonde hair against the everyday stressors that cause colour fading and brassiness. Because blonde hair shouldn’t be fragile hair.

Argan Oil

Known as ‘liquid gold,’ argan oil is rich in linoleic acid and vitamin E, replenishing the fatty acids and moisture stripped by bleach and colour to make blonde hair softer, shinier, golden.

The Science

The hyd [hydrate] and Save 25% Collection

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Front of bottle of Blacklight Blonde Science Moisture Hydrating Shampoo 300ml

Hydrating ShampooFor lasting hydration and shine

$36.00 CAD

(4.9)

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Front of tube of Blacklight Blonde Science Hydrating Conditioner 200ml

Hydrating ConditionerRestore softness & elasticity

$36.00 CAD

(4.9)

hyd[hydrate] Save 25%

Front of jar of the Blacklight Blonde Science Deep Hydrating Mask 200ml

Deep Hydrating MaskDeeply hydrate dry hair

$46.00 CAD

(4.9)

hyd[hydrate]

Save 15%

3 bottles of Blacklight Blonde Science Hydrating Products for Blonde Hair including a shampoo, conditioner and mask that are included in a bundle

Hydrating BundleFor silky, healthy and luminous hair

$100.00 CAD

$118.00 CAD

(5.0)

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Front of jar of the Blacklight Blonde Science Hydrating Mask 200g

Hydrating MaskRestore hydration and shine

$46.00 CAD

(4.9)

hyd[hydrate] Save 25%

Front of bottle of the Blacklight Blonde Science Lightweight Hydrating Shine Oil 100ml

Hydrating Shine OilEnhance shine for dry hair

$48.00 CAD

(4.9)

5 stars: 36 (82%)
4 stars: 8 (18%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Pretty good so far

Been using it for about two weeks. I like how my hair feels but I'm not crazy about the smell.

A little goes a long way

First time I used way too much lol. A few sprays is all I need and my hair feels really soft.

Will buy again

My hairdresser recommended this and I'm glad I tried it. Makes my hair easier to manage without feeling like there's product in it.

Works well

I have fine blonde hair and most leave-ins weigh it down. This one doesn't as long as I don't use too much.

Love this stuff

My hair gets so tangled after washing and this helps a lot. Already bought another bottle.

Actually really good

Didn't expect much at first but my hair feels so much better after using it. Especially the ends which are usually super dry.

Good but not perfect

Helps with the frizz around my ends but I still need to use my hair oil sometimes. Overall happy with it.

Absolutely love this! Protects from heart and makes my hair feel soft and look silky and smooth

Thank you for the great review about our best-selling 18-in-1 Beautifier! We're so happy to read that you like it as much as we do!

I like it so far. Replaced my usual leave-in conditioning spray

I use it before blow drying and it helps keep my hair soft and smooth. Smells great too.

Thanks for the kind words!

I absolutely love this product! From the first time I used it I knew it would be my go-to. I’ll order two at a time so I don’t run out!

Thank you so much! We're so glad you like the 18-in-1 Beautifier as much as we do! :-)

Nice leave-in spray

Been using it after every wash for about a month. My hair feels more hydrated and doesn't tangle as much. Wish the spray came out a little finer but otherwise really good.

Makes styling way easier

I have thick hair that takes forever to brush and style. A few sprays of this on damp hair makes the whole process so much easier.

Good everyday product

I like it and will keep using it. Makes my hair easier to manage and definitely helps with frizz, although I still need a little oil on my ends.

So soft

Only used it a couple times so far but wow my hair feels soft. It also gives a nice shine without making it look greasy.

Use it almost every day

I've had this for a few weeks now and probably use it more than any other hair product I own. Really good before styling or just to refresh my ends.

Where has this been??

My hair gets SO tangled after washing and this has made such a difference. I can actually get a brush through it without fighting with my hair lol.

Pretty good

Definitely helps with tangles and leaves my hair soft. I just have to be careful not to use too much on my roots.

Great for my fine hair

I was worried it would weigh my hair down because its pretty fine, but it doesn't at all. Super lightweight and makes brushing so much easier.

Love this stuff

I spray a little on my damp hair before blow drying and thats it. Less frizz, easier to style and my hair looks shinier too.

Didn't expect to use it this much

I originally bought this mostly for detangling but now I use it every time I wash my hair. Makes it so much easier to brush and my hair feels really soft.

I love this stuff! Helps detangle!!!

Thanks for taking the time to leave such a great review, we appreciate it! :)

This is incredible. Leaves my hair with so much volume without being frizzy. It’s soft looks nicely highlighted- love it!

Hi Sylvia, thank you for sharing your experience! Happy to know that our 18-in-1 Beautifier gives your hair the volume and shine you love. Enjoy your gorgeous hair!

Love the smell of it

Amazing smell and results are great!

super Nourishing

My hair feels light, bouncy, and way easier to style. Plus the scent is amazing.

Does Everything

I love products that simplify my routine and this one really does it all.

Immediate results

I use this after every wash and my hair feels so soft and smooth without being greasy. It also helps so much with detangling and frizz

Worth it

Great product highly recommend for colored hair protects it from damage

So happy you’re loving the 18-in-1 Beautifier—thank you for recommending it and trusting it to protect your color!

Give it a try �.

I purchased this product to replace another leave in conditioner I had been using. I am very happy with how it works on my hair. No frizzy ends. It leaves my hair very hydrated. It is worth the money.

So glad you made the switch and are loving the results—hydrated, smooth, frizz-free hair is exactly what the 18-in-1 Beautifier is made for.

All in One

I am amazed by this product! It has worked wonders for my hair, making it healthier than ever before. I had always struggled with hair growth, but since starting to use this product a year ago, my hair has gone from shoulder length to halfway down my back! It's incredible how this 18 in 1 product has replaced the other 10 products I used to use in order to achieve healthy hair. I am now giving it to my 11-year-old daughter who has breakage, and I can't wait to see the difference it will make for her hair.

Wow, this means so much—so happy to hear the 18-in-1 Beautifier transformed your routine and helped your hair grow stronger, healthier, and longer, and we hope your daughter loves it just as much!

Love it!

Great light weight Conditioner! And smells amazing!

Great to hear—lightweight performance with a beautiful scent makes it an easy everyday essential!

Hair repaired

Heals hair and protects from heat!

Great to hear—repair and heat protection in one step makes it an easy essential for healthy, styled hair!

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18-in-1 Beautifier

18-in-1 Beautifier